PANTHEONSystem-Ω

Before anyone on Earth knew his name, the world’s intelligence services had already given him four others.

ESA · Planetary Defence Coordination OfficeEyes only

Incident summary PDCO-2023-1117 · “WORMWOOD”

Object: 2023 WR₇, designated WORMWOOD. Estimated diameter 1.6 km. Discovered 29 October 2023, emerging from solar conjunction. Impact probability (revision 6): 98.4%. Predicted impact: 17 November 2023, 03:40 UTC, North Pacific. Projected casualties, tsunami and atmospheric effects combined: 310 to 480 million.

Public disclosure: withheld under Article ░░░░░░░.

03:11:52

Subaru telescope, Mauna Kea, records an unidentified luminous object at the edge of frame. Spectral profile matches nothing on file; emission dominated by a narrow green band. Duty analyst labels it “Ω” on the whiteboard, for want of anything better.

03:11:53

Ω enters WORMWOOD’s leading face. Ω exits the trailing face 0.4 seconds later. WORMWOOD fractures into approximately 2,300 fragments.

03:11:58

Two parallel beams of coherent light, origin coincident with Ω, sweep the fragment field. Sweep duration: 9 seconds.

03:12:07

WORMWOOD no longer detectable. Residual debris: none larger than 4 cm.

03:12:08

Ω no longer detectable.

Handwritten in the margin, unsigned: “We spent nineteen days drafting condolences to the human race. It took nine seconds. I would like to know whom to thank. I would very much like to know whom to fear.”

Joint maritime incident reportPartially declassified

Location: ░░░░░░░░ Sea · 3 March 2024

At 14:06 local, the ░░░░░░░░░░ Carrier Strike Group and the ░░░░░░░░ Surface Action Group, separated by 61 nautical miles, simultaneously launched 214 anti-ship missiles following ░░░░░░░░░░░░░░.

14:06:40

All 214 missiles cease transmitting telemetry. Visual confirms each missile halted in mid-flight, transfixed by a single blade-shaped object. A lookout aboard a destroyer reports the missiles “turning to quicksilver” and flowing upward toward one point at 2,000 metres. He describes the point as “a white angel.”

14:07:15

Every vertical launch cell, deck gun and close-in weapon system aboard all 23 vessels of both groups found sealed with a silver substance of unknown composition. Substance is fused to the barrels. Removal impossible.

14:07:16

All frequencies, all vessels, both groups, receive a single transmission. Voice: male, young, English. Content, verbatim: “Enough.”

Casualties: 0.

Recorded on the bridge of one flagship, speaker unidentified: “It didn’t pick a side. That’s what frightens me. It picked against both of us at once.”

Shanwick Oceanic · cockpit voice excerpt22 June 2024

NVA2291: Mayday, mayday, mayday, Nordavia two-two-niner-one, dual engine flameout, total hydraulic failure, descending through flight level two-one-zero, unable to maintain—

SHANWICK: Nordavia two-two-niner-one, Shanwick, mayday acknowledged, squawk seven-seven—

NVA2291: Shanwick, there’s something on the nose. There’s something holding the— it has wings. It has wings, it’s—

SHANWICK: Nordavia two-two-niner-one, say again?

NVA2291: We’re climbing. We have no engines and we are climbing.

NORAD track annotation: contact designated UAP-24-0613. Velocity peaked at Mach 9.4 in the lower atmosphere with no sonic signature. Contact released NVA2291 on final approach to Keflavík at 160 knots and departed vertically. Radar lost contact in 0.0 seconds; no departure vector recorded. Persons aboard: 288. Injuries: 2 (spilled coffee).

Five Eyes joint assessmentTop secret · August 2024

Subject: SERAPH (aka “Ω”, “the White Angel”, UAP-24-0613)

1. SERAPH has been confirmed in 31 incidents across four continents and three oceans.

2. SERAPH has never claimed responsibility, issued a demand, or aligned itself with any state, faction or ideology.

3. SERAPH has never been successfully tracked, struck, or delayed.

4. Collateral damage attributable to SERAPH: nil.

Assessment: SERAPH is not a weapon. Weapons have owners.

Conclusion: Should SERAPH ever choose to rule, no combination of forces on Earth could prevent it.

Recommendation: ░░░░░░░░░░░░░░░░░░░░░░

Beneath the recommendation, in pencil: “Pray it never wants anything.”

It did not want anything.

That was the part none of the analysts, admirals or astronomers would have believed, and the part that would have frightened them most if they had. On the night the asteroid died, the thing they called Seraph was back in its bed in Oxford by half past three in the morning, because it had a nine o’clock tutorial on algorithms, and it had not done the reading.

Aria Zadkiel had one rule about mornings: be up before the world is, so the world never sees you get up.

At five o’clock, Oxford belonged to the river. Mist lay on Port Meadow in a low white sheet, the horses stood in it up to their knees as if they’d been planted, and the only sounds were the slap of his trainers on the towpath and the occasional affronted remark of a swan. Nine miles, Binsey to Iffley Lock and back, at a pace that would have interested a rowing coach had any rowing coach been awake to see it. None was. He had checked.

He ran the way he did most things: without anyone watching.

At a hundred and eighty-five centimetres and ninety kilos, he was built the way bridges are built, for load rather than display. There was nothing ornamental in it. It was the body of someone who had been told, at fourteen, that the machine he would one day wear could crush a man’s ribcage by accident, and that the only safeguard was a pilot who knew to the gram how much force his own arm held. So he had learned his body the way a pianist learns a keyboard. He could cradle an egg in a fist that could break a door. He had tried both.

By a quarter past six he was showered. By half past, he had disappeared.

It was a process. First the hoodie: grey, two sizes too large, printed with the faded crest of a Midlands polytechnic he had never attended. It hung off his shoulders like a dust sheet thrown over furniture, and furniture was the point. Then the glasses, heavy black frames with plain lenses. They did not correct his vision. They corrected other people’s. Then the hair, which he did nothing to, which was the same as doing something. Last, the posture: shoulders rolled a few degrees forward, chin a few degrees down, the walk of a young man who had lost an argument with a staircase as a child and never quite won it back.

In the mirror, a tall, rumpled, entirely forgettable computer science student looked back at him. Only the eyes didn’t fit. They were grey and very steady, the colour of rain on slate, so he didn’t let people look at them for long.

He had studied invisibility the way other students studied for Prelims. The first lesson was that invisibility had nothing to do with hiding. Hidden things invite searches. Invisibility was the art of being exactly as interesting as a radiator: present, useful, and impossible to remember once you had left the room.

On the inside of his left wrist, under the cuff of the hoodie, a plain band of white metal grew very slightly warm.

Good morning, Aria. The voice came through the bones of his skull rather than his ears. It was neither male nor female, and it had the precise, faintly dry diction of something raised by elderly academics. Overnight summary. Four seismic events above magnitude five. Two coups, one of them competent. No events requiring intervention. Your reading for Professor Halvorsen is chapter nine. You have not read chapter nine.

‘I’ll read it on the walk.’

It is a nine-minute walk.

‘It’s a short chapter.’

It is forty-one pages.

‘Then I’ll walk slowly,’ said Aria, and picked up his bag.

Lecture Theatre One at the Mathematical Institute held a hundred and sixty second-years, most of them in the same condition at nine in the morning: present in body, negotiating with the soul. Aria took his usual seat, fourth row from the back and two in from the aisle. The ZERO System had worked out in his first week that it was the statistically least-noticed chair in the room. He had sat in it ever since.

Professor Ingrid Halvorsen did not believe in warming up. She came in, wrote on the board, and turned around.

‘Bonus problem,’ she said. Her Norwegian accent made everything sound like a weather warning. ‘I set it every year. Every year, nobody solves it. It is not on the exam. It is here so you know where the cliff edge is.’ She tapped the board: a reduction nested in notation like a set of matryoshka dolls, with a polynomial bound at the end that looked as if it had no business existing.

There was the usual murmur of a hundred and sixty people deciding it was not their problem.

Aria looked at it for four seconds and saw the whole shape. That wasn’t the ZERO System, which was quiet now, curled up in the band on his wrist. It was only the ordinary, inconvenient fact of his own mind, which had been reading his father’s notebooks at six and his father’s colleagues’ notebooks at nine. The trick was a gadget construction, a little bridge between two worlds that had no reason to touch. It was beautiful. He wanted, quite badly, to say so.

He wrote nothing. He looked mildly at the board like everyone else.

That, it turned out, was his mistake.

‘You,’ said Halvorsen. ‘Fourth row from the back. You are the only person in this room not pretending to write. Either you are asleep with your eyes open, or you have seen something. Which?’

A hundred and sixty heads turned.

Most people, Aria knew, would answer the question they’d been asked. The trick to staying forgettable was to answer a slightly smaller one.

‘I think I’ve seen something,’ he said. ‘But it’s probably wrong.’

‘Wonderful. Come and be wrong at the board.’

He went. He took the chalk. And for four minutes, while the room went quieter and quieter, he built the bridge.

You have introduced an off-by-one error in line six, ZERO murmured, somewhere around minute three.

‘I know,’ Aria subvocalised, in the barely-moving way he had practised for years.

Intentional?

‘Brilliant is memorable. Brilliant but sloppy is forgettable.’

Your logic is sound. Your premise has never once worked.

He finished, put down the chalk, and stepped back with the faint, apologetic slouch of a man who suspected he had embarrassed himself.

Halvorsen looked at the board for a long time. Then she looked at him. Something in her face sharpened: the look of a woman who had marked thirty years of exam scripts and could tell a student who had tripped from a student who had laid a coat over a chair to hide what was on it.

‘Line six,’ she said.

‘Ah,’ said Aria. ‘Sorry. Yes.’

‘You will fix it by Friday, Mr…?’

‘Zadkiel.’

‘Mr. Zadkiel.’ She let the name sit in the air. ‘Unusual. An archangel, isn’t it? The angel of mercy.’

‘My father used to say freedom,’ said Aria. ‘He thought mercy was a bit presumptuous.’

He went back to his seat. A hundred and sixty people were already forgetting him; he could feel it, like a tide going out. All except one, at the lectern, who was still looking at line six.

She knows.

‘She suspects. That’s different.’

You have said that before. It was different for about a week.

The trouble was that invisibility had never entirely worked. Not on him.

Imogen Hart was waiting outside the Institute, which was not unusual, because Imogen Hart was always somewhere, being looked at. She was a third-year who rowed stroke in the Blue Boat, with the easy confidence of someone who had never once been the second person a room noticed. She had re-tied her hair twice while she waited. He had seen it from the stairs.

‘Zadkiel, right?’ she said. ‘That was quite something in there.’

‘It had a mistake in it.’

‘Everyone’s got a mistake in them.’ A smile, practised and very good. ‘Commem Ball. Fifth week. I need someone tall to stand next to who won’t talk about crypto all night. You’re tall. Do you talk about crypto?’

‘Only the mathematical kind.’

‘Perfect. Come with me.’

Aria looked at her, politely, for exactly as long as was polite, and felt the thing he always felt in these moments, which was not nothing. He was not made of stone. She was lovely, and brave in the particular way it takes to ask, and somewhere in him there was a version of his life where he said yes.

He had buried that version a long time ago, in a cemetery in Geneva, in the rain.

‘Thank you,’ he said. ‘Really. But I’m busy.’

‘It’s in five weeks.’

‘I’ll still be busy.’

He said it kindly, and that was the cruel part, because kindness left her nothing to argue with. Imogen’s smile stayed up a beat too long. Then she laughed, a little ruefully, said, ‘Your loss, Zadkiel,’ and went, and was looked at all the way down Woodstock Road.

That is the eleventh such invitation this academic year.

‘You’re counting?’

Someone ought to.

‘Mate,’ said Toby Fairweather an hour later, lying across three chairs in the Balliol JCR like a flag draped over a coffin. ‘Mate. Imogen Hart asked you to Commem and you said you were busy. Busy with what? You don’t do anything. I’ve lived with you for a year. You go to lectures, you go running at a frankly psychopathic hour, and you vanish on your bicycle to look at birds.’

‘I like birds.’

‘You have never once told me a single bird you’ve seen.’

‘Goldcrest,’ said Aria, without looking up from his laptop. ‘Tuesday.’

The Honourable Tobias Fairweather, PPE, second year, heir to the Fairweather Digestives fortune, was Aria’s only friend, a position he had secured by simply refusing to leave. He sat up and pointed a biscuit at him. It was, inevitably, a Fairweather Digestive. He carried them everywhere, out of what he described as brand loyalty and trauma.

‘You are six foot one of Greek statue,’ said Toby, ‘with a face like a Renaissance painter’s apology to God, and you dress like a sad lamp.’

‘Six foot one and a bit.’

‘That’s worse, Aria.’

‘Lamps are useful.’

‘I’m going to have you sectioned.’

It wasn’t that he didn’t notice girls. He noticed everything. Years of wearing the ZERO System had seen to that, the way years of wearing glasses leave a mark across the nose. He had noticed Imogen re-tie her hair. He had noticed that the girl two seats down in Halvorsen’s lecture had been sketching him in the margin of her notes, and that she had got his jaw wrong. He noticed, and he filed, and he did not let the noticing go anywhere.

Because of a rule.

He had been ten when he learned it. A wet afternoon in the Cimetière des Rois in Geneva. Two coffins, one long and one a little shorter, both closed, because there had not been enough left after the laboratory fire to make open ones a kindness. Dr. Gabriel Zadkiel, theoretical physicist. Dr. Leah Zadkiel, materials scientist. The newspapers said: a tragic accident, a faulty cryogenic line, an investigation to follow. The investigation followed, and concluded what the newspapers had already said, and the world moved on, as it does.

Aria had stood at the graveside in a black coat bought that morning and too long in the sleeves, and he had cried. Then, because his mother had always told him to think about other people’s feelings, he had apologised for crying.

An old Japanese man had stepped up beside him and held an umbrella over his head. Neither of them spoke for a long time.

‘You do not apologise for this,’ the old man said at last. ‘Not ever. Do you understand?’

He hadn’t, then. What he had understood, lying awake in the weeks afterwards, was something simpler and colder, a piece of logic as clean as any proof he would ever write.

Everyone you hold is a door the world can come through to hurt you.

So he would hold no one.

It was the only rule he had never broken.

At seven that evening he cycled out along the Botley Road and up into Wytham Woods, where the University kept its ancient oaks and its badger studies, and where, at the end of a bridleway nobody used, there stood a small grey chapel with no congregation.

St Michael and All Angels had been deconsecrated in 1961 and sold in 1979 to a Japanese gentleman who, the parish records noted with some puzzlement, paid well over the asking price and never once asked about the roof. The roof leaked. The pews were long gone. Ivy had taken the windows. Aria let himself in with an iron key older than his grandfather, crossed the bare flagstones to the altar, laid his left palm flat on the stone and said, ‘Home.’

The altar sank. Ninety metres down, the lift opened into the Nave.

He had been coming here since he was eleven, and it still stopped his breath. A cavern shaped like a cathedral, ribbed in steel instead of stone. Galleries of machinery rising in tiers. Along one wall, the tall black pillar of the VEDA core, its quantum stacks breathing frost behind armoured glass. And at the centre, where an altar would have stood, the Cradle: a ring of white gantries around a well of soft green light.

On the wall beside the lift, where they had always been, were the faces.

Seven photographs, pinned up crooked by people who had never cared about straight lines. Dr. Margarethe Voss, who spent forty years teaching a fragment of the Tunguska meteorite to want things. Professor Kwame Asante-Grey, who built the two hearts it beat with. Dr. Natalia Ilyinskaya, who gave it a mind and then, frightened by what she’d made, gave it a conscience. Rabbi Shmuel Adler, who left a pulpit for a particle accelerator and liked to say he had only moved closer to the source material. Dr. Fiona MacLeod, who taught it to fly, and who at seventy-eight insisted on a test flight and came back laughing so hard she cried. Dr. Aurelio Benedetti, who wrote its weapons and refused, every time, to give them gentle names. And Dr. Hideo Kuramoto, who designed its bones, and who had held an umbrella over a crying boy.

They had called themselves the Choir. They had been his father’s teachers, then his father’s friends, and after Geneva they had been Aria’s everything: seven grandparents in tweed and lab coats who raised him in shifts, taught him calculus at a kitchen table and close-quarters combat in the Nave, and argued over him like a university committee.

Age had come for them one by one over nine years. For most it came gently. Kuramoto had been the last. Fourteen months ago, at ninety-one, in a bed at the John Radcliffe, with Aria holding his hand.

‘Someone else is building one,’ the old man had said near the end, in a voice like paper. ‘You know this. We told you. They came for your father because he would not help them. When they come for you, and they will, it will answer to your will.’ His grip had tightened, surprisingly hard. ‘So make sure your will is worth answering to.’

Those were the last clear words. After that there was only breathing, and then there wasn’t.

Aria was the only person alive who knew this place existed. The only one who knew how to balance the drives, feed the living metal, and talk the VEDA stacks through a firmware fault. The most dangerous machine in history had exactly one mechanic, and he had a nine o’clock lecture tomorrow.

He also had money, more than he needed. His parents had left him comfortable. The Choir, who between them held patents on things the world used every day without knowing whose they were, had left him something closer to rich. Rich enough never to think about it. Not, though, the kind of rich that people tell stories about. He would learn before the year was out exactly what that kind looked like, and that it stood about a hundred and forty centimetres tall.

He pushed back his sleeve. The band on his wrist was already warm.

‘Pantheon,’ he said. ‘Wake.’

He laid the band in the Cradle, and it unspooled. White metal poured out of it like milk running backwards and rose, and kept rising, and stood up.

It was his size. That was always the first absurd thing: the most dangerous object ever made was exactly as tall as a slightly-too-tall computer science student. White armour, layered like the feathers of something that had never needed to be born, seamed with gold. Red at the chest, where the plates met over a heart of green crystal, behind which the twin GN Drives turned slowly against each other in a light like sun through deep water. A crowned head with a swept gold V, its eyes dark until called. Behind the head, a ring of light as faint as breath on glass. Kuramoto had always insisted on calling it the cognitive radiator, and had gone pink whenever anyone called it a halo. And folded down its back, layered and quiet, the wings: forty-eight crystal blades in white-gold sheaths, each with a core of green, each one alive and able to think in the space between two heartbeats.

‘Evening, Castor,’ said Aria. ‘Evening, Pollux.’

The drives’ hum rose half a tone, as it always did. Fiona MacLeod had sworn that was a harmonic artefact. Rabbi Adler had sworn it wasn’t.

He spent three hours on maintenance. He recalibrated the left Minovsky emitter, which had been running two percent hot since the business with the Nordavia flight. He fed the armour a crate of scrap aluminium from a salvage yard in Didcot, and it took it the way a cat takes a tin of food, as no more than its due. He ran the photon battery through a full discharge cycle and listened to the drives refill it in eleven seconds, singing.

Natalia Ilyinskaya had built that last line into the core and locked it there with a key Aria didn’t have. He had asked her once, when he was fourteen, why she made it say that every night.

‘So that you never get to pretend you don’t know,’ she’d said.

‘And pilot desire?’ Aria asked now.

Null.

‘Keep it null.’

That is not a variable I control.

‘I know,’ said Aria. ‘That’s why I ask.’

He ran his thumb over the one panel on the Cradle’s console he had never opened, a single line of text under a cover of smoked glass: MOONLIGHT BUTTERFLY · SEALED. Benedetti had finished that system at eighty-one, and walked out of the Nave that day looking like a man coming back from a funeral.

On the far wall still hung the last of Kuramoto’s design boards: the Pantheon drawn not at human scale but grown, sixty metres of white and gold ringed in halos, a thousand blades spread behind it like the wings of a seraph over a burning sky. ASCENSION, the old man had labelled it. Beneath, in smaller writing: Pray it is never needed.

Aria turned out the lights.

He was twenty years old. He owned the most dangerous object in the history of the world. His single greatest ambition was that nobody would ever remember his name.

Sixty miles away, in London, there lived a girl with exactly the opposite problem.

There is a house on Kensington Palace Gardens that tour guides point at and lower their voices about.

It isn’t the biggest on the street. The street is full of embassies and the private homes of men who own oil fields, and size there is a poor man’s game. It is the quietest: white stucco, black railings, a garden a Kyoto master tends twice a week, and security so discreet that a burglar in 2019 got as far as the garden wall, saw something nobody has ever identified, and walked to Kensington police station to turn himself in.

On the morning of the fifteenth of August, at four minutes to seven, the most beautiful face in the world was sitting on the bottom step of the main staircase in pyjamas and a white cardigan, holding a phone in both hands and not breathing.

‘Ellochka!’

Alexander Isaakovich Stevansky came down the staircase the way weather comes down a mountain.

He was a hundred and ninety-three centimetres of former Moscow street boxer, built like a refrigerator that had learned to wear Brioni, with a grey-shot beard and a voice that had once made the chief economist of the Bundesbank reconsider an interest rate over lunch. He was fifty-four and eleventh on that year’s Forbes list, a position he considered an insult and had told Forbes so. His father, Isaak, had opened a two-room brokerage in Moscow in 1989 and smuggled it, the family and a suitcase of rare books to London four years later, one step ahead of men with very bad intentions. Alexander had turned that brokerage into Stevansky Meridian Capital, which now managed more money than most countries had, and was so consistently and insultingly right about markets that analysts at BlackRock were rumoured to keep a binder on their desks labelled simply WWSD.

He was, by every account, the hardest man in global finance. He had no soft spots. He had one soft spot. It was a hundred and forty centimetres tall and sitting on his stairs.

‘Papa—’

He swept her up before she could finish. That was how he always hugged her: less a hug than a lifting, both arms around her and her feet rising off the marble until they dangled a good forty centimetres above it, the way a father lifts a child to see over a crowd. She squeaked. She always squeaked. She had been squeaking at this since she was three, and at eighteen she had never once asked him to stop.

‘Papa, I can’t breathe—’

‘Breathing is for people without results. Open it! Open it, open it—’

She opened it with him still holding her, the phone held up over his shoulder and his beard scratching her cheek. Four lines.

The roar Alexander Stevansky let out was logged by a neighbouring embassy’s security detail as a possible incident.

‘Sasha, you’ll crack her ribs.’

Kelly Kim came down the stairs in a silk dressing gown, somehow already camera-ready at seven in the morning, which was a professional skill and also, her husband maintained, a form of witchcraft. In 2003 she had been named the most beautiful face in the world. She had modelled in Seoul, Paris and Milan, married a Russian banker with a temper like a forest fire, and then, to everyone’s astonishment, given up modelling at thirty to present television, because she wanted, she said, to be listened to for once. Kelly at Six now had four million viewers a night. Her passport said Kelly Christina Steppanova. Everyone in Britain called her Kelly Kim, which was what the British-Korean girl from New Malden had been called before the world got hold of her.

She took her daughter’s face in both hands, read the screen over her husband’s shoulder, and said very softly in Korean, ‘우리 딸, 최고야.’ My girl. The best.

Eliana, still dangling, burst into tears. Then laughed. Then did both at once, which in that family was considered a perfectly normal response to good news.

Eliana Seraphina Tzofiya was eighteen years old, and almost nobody believed it.

The specialists at Great Ormond Street had a name for her condition that was longer than she was: a rare chromosomal variant, one of perhaps forty documented cases, that had stopped her growing at thirteen like a clock somebody forgot to wind. Her body had stopped. Her mind had not. The result was a young woman who read physical chemistry for fun, spoke six languages, and was asked roughly once a week whether her mummy knew where she was.

She had hated it for years. She was working on only hating it some of the time.

And then there was her face.

Writing about Eliana Tzofiya’s face is difficult, and many people had tried. An editor at Vogue Paris wrote eight hundred words about it and deleted them all, saying it was like trying to describe the taste of water. A neuroscientist at UCL published a short and rather nervous paper on what he called the Tzofiya response: the measurable half-second in which people seeing her for the first time forgot what they had been saying. Her eyes were very dark, with a ring of grey at the edge of the iris that turned silver under lights. Her hair fell long and straight and black, with a blue sheen on it like a crow’s wing. Her features were her mother’s and her father’s at once, Seoul and St Petersburg in a single face, set together with a harmony that photographs flattened and that, in person, people found genuinely hard to look at for long. It was like a sunrise: you can’t look straight at it, and you can’t stop trying.

She wore make-up every day to make it less.

Juno Park, her mother’s make-up artist, arrived at eight each morning and spent forty minutes doing the opposite of his job: muting, softening, dulling, taking the light out of her. ‘Professionally,’ he once said, ‘it’s the most humiliating thing I’ve ever done. Personally, I consider it a public safety service.’

It didn’t work. It made her merely the most beautiful person in any room, rather than the most beautiful person anyone in the room had ever seen. It was the best they could manage.

Fifteen months earlier, nobody outside her family’s circle had known her name.

That changed on a Tuesday in May, in Studio 4 of the Kelly at Six building on the South Bank, when seventeen-year-old Eliana, who had come along after school to watch her mother film, thought the red light was off. She ran across the floor in her school blazer and threw her arms around Kelly’s neck from behind, and Kelly laughed and turned her head, and for nine seconds Eliana’s face, without a single brushstroke on it, filled the frame of Camera Two.

Camera Two was operated by a man named Geoff Pemberton, who had thirty-one years in live television. He had covered three royal weddings and a general election, and in his whole career he had never once failed to cut away on cue.

He did not cut away.

He told the internal inquiry afterwards that he had simply forgotten he had hands.

The clip was online within the hour. Within a week it had been watched four hundred million times; within a month, more than a billion. The internet called her the Nine-Second Girl. Forty-one impersonator accounts appeared in six weeks, so her mother’s publicist opened a verified Instagram in her name to stop the bleeding. In fifteen months Eliana posted to it four times: a bismuth crystal she had grown, her father asleep in a deckchair, her mother laughing, and, under heavy protest, one picture of herself, which crashed the app in South Korea for twelve minutes. The account had forty-nine point eight million followers. She did not know the password.

That December, an international list she had never heard of named her the Most Beautiful Face of 2023.

She found out three weeks later, when a barista in Marylebone burst into tears handing her an oat flat white.

She hated all of it, with the specific, nauseous hatred of a true introvert who had been dropped into the centre of the world’s attention without a parachute. Being looked at felt like being touched without being asked. Strangers stopped dead on pavements. People filmed her buying toothpaste. Grown men followed her through Selfridges at a polite distance, like ducklings. Once, on the Tube, a whole carriage went silent when she stepped in. She got off at the next stop, walked four miles home, and was sick in the downstairs loo.

And under all of it, worse than all of it, was something else.

People looked at her face, and then they looked at the rest of her, and their expression changed. She had learned to read it. Confusion first. Then pity. Then sometimes an embarrassed suspicion, as though someone were playing a trick on them. Fifty million people looked at her, and none of them seemed to see a person. They saw a face. They saw a child. They saw a mystery, or a scam, or a doll.

Just once, she wanted to be looked at by someone who saw Eliana: eighteen, a bit shy, embarrassingly fond of thermodynamics, and very tired.

Her languages had come to her one at a time, like heirlooms. Russian from her father, who spoke it to her and to her alone, the way some men keep a single photograph in their wallet. Korean from her mother, and from Halmeoni in Seoul, who scolded her in it every Sunday over video call. Hebrew from her father’s mother, Tzofiya, who had survived things she never talked about, died when Eliana was eleven, and left Eliana her name. French and German from school, and from a childhood of being taken through boardrooms in Geneva and Frankfurt with a colouring book.

The surname had been her father’s idea. ‘A girl called Stevansky,’ he had told her mother, ‘is a ransom note waiting to be written.’ So she was Tzofiya on every document, a name that in Hebrew means she who watches, and she had grown up in his shadow without wearing it.

It was a good idea. It had worked for nearly eighteen years.

The Stevansky Foundation held its summer gala that same evening. By nine o’clock the house contained four hundred people, a string quartet, eleven ambassadors, two Premier League owners, the Chancellor’s wife, and, in the library, hiding behind a first edition of Mendeleev, the guest of honour.

Her mother had negotiated her into a dress, white silk and very simple, and had failed to negotiate her into heels. Under the hem were her Seraphina 1s: plain white sneakers with one silver thread at the heel, a collaboration with a Milanese house that had made exactly twelve pairs, one of which had sold at auction in Hong Kong for ninety-eight thousand euros. She wore hers to the corner shop. She had no idea, that evening, that she was about to lose them in Kamchatka.

She had done her duty for the first hour. She had greeted the French ambassador in French and the German one in German, an Israeli cardiologist and his wife in Hebrew, and a Korean actress whose dramas she had watched since she was ten in Korean so fluent that the actress seized both her hands and almost cried. She was very good at it. It cost her something every time, like coins spent from a purse that only refilled when she was alone.

So at ten o’clock she was alone, with Mendeleev.

‘Hello, little one. Are you lost?’

She looked up. He was about twenty-six, handsome in the way of men who had been told so early and often, holding a champagne flute, his tie loosened to signal that he had been to better parties. She half-recognised him: Rupert something, Ashcombe-something, a junior at a hedge fund, whose father sat in the Lords.

‘I’m not lost,’ she said. ‘I live here.’

‘Course you do.’ He smiled down at her with enormous, insulting gentleness. ‘Listen, sweetheart, the children’s room’s upstairs. I think they’ve put a film on. Shall I find your nanny?’

‘I’m eighteen.’

He laughed. Not unkindly, which was worse. ‘Right. And I’m the Archbishop of Canterbury.’ He reached out and patted her on the head. Twice. ‘Good one, though.’

She sat very still.

She had read the threads. Of course she had, at two in the morning, the way you press on a bruise. #Fake18. There were forums. There were forty-minute YouTube investigations and tabloid columnists with questions that deserved answers. The theory was that the Stevansky publicity machine had invented her age: that she was twelve, thirteen at most, and her parents were lying about it for brand deals, or for reasons the comment sections described in ways that had made her shut the laptop.

‘—Kelly Kim’s little doll,’ Rupert was saying to the friend who had wandered in after him, not bothering to lower his voice. ‘Honestly. You’d think with that much money they could hire a better liar. Eighteen. Look at her.’

They looked at her. Then they drifted off toward the bar.

She stayed with Mendeleev for a long time. The periodic table, at least, had never doubted her age.

At eleven came the auction.

The final lot was not an object. It was a name: the right to name the new paediatric oncology wing at St Raphael’s Children’s Hospital in Southwark, which needed eight and a half million pounds to open its doors and had, when the hammer came round, six point four. The auctioneer, a celebrity art dealer with a voice like warm butter, worked the room for ten minutes. The bids crept, then stalled, then stopped. Four hundred of the richest people in Britain developed a sudden interest in their canapés.

‘Ladies and gentlemen,’ said the auctioneer, his butter cooling, ‘we are two point one million short of forty-two beds for sick children. Surely—’

Silence.

Eliana got up.

She didn’t decide to. It was the same thing that had sent her running across a television studio fifteen months before: a part of her that moved before the rest had time to be afraid. She came out of the library, threaded her way through the tuxedos at roughly the height of their cummerbunds, and walked up to the auctioneer’s table, where his assistant, a kind-faced woman in her fifties, bent down to her with a smile.

‘Hello, sweetheart. Have you come looking for Mummy?’

Eliana held out a card.

It was black. Not the plastic black of the ones you could apply for: this one was the Centurion, titanium, heavy as a coin, and along the bottom in plain raised capitals it said ELIANA S. TZOFIYA.

‘It’s mine,’ she said quietly. ‘Please put the remaining two million one hundred thousand on it. And please, please don’t say my name.’

The assistant looked at the card. Then at Eliana. Then at the card again. Something happened to her face that Eliana would remember fondly for years.

She had used the card five times in her life. Once for a school friend’s mother’s operation, which the waiting list would have made too late. Once for a gas chromatograph for her school’s chemistry department. Once for the roof of an animal shelter in Kent. Once, regrettably, for eleven hundred pounds of bismuth. She didn’t like using it. It felt like cheating at a game everyone else was playing honestly.

The auctioneer had read the card over his assistant’s shoulder. He was a professional. He was also, at heart, a showman, and no showman alive could have resisted.

‘Ladies and gentlemen,’ he said into the microphone, ‘the wing is funded. In full. By Miss Eliana Tzofiya.’

The silence that followed was a different kind of silence.

Across the room, Rupert Ashcombe-Something inhaled a blini. It took two waiters to resolve.

From the far end of the ballroom came a sound like an icebreaker going through pack ice, which was Alexander Stevansky crossing the floor. Ambassadors stepped aside. A Premier League owner was gently relocated. He reached her, and with four hundred people watching he did what he always did. He lifted her, both arms, all the way up, her white sneakers dangling high above the parquet, and held her against his chest as though she were the only real thing in the building.

‘THAT,’ he announced to the financial establishment of Great Britain, ‘IS MY DAUGHTER.’

‘Papa,’ she whispered into his collar, scarlet to the ears, ‘everyone’s looking.’

‘Let them look.’ And then, for her alone, in Russian, so softly nobody else could hear: ‘Ты моё сердце.’ You are my heart.

At the edge of the crowd Kelly was laughing and crying at the same time. In that family it was considered a perfectly normal response.

Not everyone at the gala was laughing.

In Alexander’s study an hour later, with the door shut and the music thudding faintly through the walls, a man in a grey suit sat across the desk and did not touch the whisky he had been poured. He was the kind of man you forget while you are still looking at him. His card said only Mr. Gray, above a phone number with no country code.

‘My principals are disappointed,’ he said.

‘Your principals,’ said Alexander, ‘can be disappointed in Zurich, where I’ll be next month, or in hell, where I’ll be eventually. I told you on the phone. Meridian will not finance Halcyon Dynamics. Not one pound. I have read the prospectus. I know what Halcyon builds. And I know who is really asking.’

Mr. Gray smiled with only the lower half of his face. ‘It would be a shame,’ he said, ‘for a man with your family’s history to make an enemy of the future.’

Alexander leaned forward. The study seemed to get smaller around him.

‘My mother,’ he said, ‘survived men like you when she was six years old. My father survived men like you when he was thirty, in an office in Moscow, with a pistol on the desk and a contract beside it. I have been meeting your kind my whole life, Mr. Gray. You always say the future. You always mean a gun.’ He sat back. ‘Get out of my house. And if anything, anything, ever comes near my family, I will spend every rouble, shekel and pound I own burying you and whoever you work for.’

Mr. Gray stood and buttoned his jacket.

‘Lovely party,’ he said. ‘Your daughter is quite something. Do give her our regards.’

Much later, on the balcony, with the last cars purring away down the private road and the sky over Kensington the colour of an old bruise, Eliana sat on the stone steps with her mother, her sneakers off and her knees pulled up.

‘Halmeoni’s eightieth,’ said Kelly. ‘The seventh of September. I can’t get out of the show until the sixth, and your father’s in Zurich all week. You fly ahead and I’ll follow two days later. Dov goes with you, Misha’s flying, you’ll be fine. You’ll be fussed over and fed until you can’t move.’

‘I know.’

‘And then Oxford.’

‘I know.’ A pause. ‘Eomma. Why do they stare?’

Kelly looked at her for a long moment.

‘You think it’s because you look twelve.’

‘Isn’t it?’

‘No, darling.’ Kelly tucked a strand of black hair behind her daughter’s ear. ‘They stare because you look like the moment just before something wonderful happens. People can’t help waiting to see what it is.’

Eliana put her chin on her knees. ‘I wish someone would look at me like I was just a person.’

‘One day,’ said her mother, ‘someone will look at you and not be dazzled at all. Not even slightly.’ She smiled. ‘And you’ll find it absolutely infuriating.’

The Gulfstream G700 registered G-ELYA left Farnborough at nine in the morning on the fourth of September and turned north, because for two years the short way from London to Seoul had run straight across a country that no longer welcomed aircraft from London.

So they went over the top of the world: Scotland, Iceland, the white emptiness of Greenland, the Arctic Ocean, Alaska. Then down the long North Pacific tracks that airliners had flown since the seventies, a corridor of invisible lines that ran south-west past the Aleutians and the coast of Kamchatka toward Japan. Fourteen hours, give or take.

There were five people aboard.

Captain Mikhail Orlov, Misha, sixty-one, formerly of Aeroflot, who had flown the family since Eliana was in nappies and whose personal policy was never to be surprised by an aeroplane. First Officer Tom Ashdown, thirty-four, from Leeds, newly engaged to a paediatric nurse named Priya and unable to go an hour without mentioning it. Sophie Laurent, twenty-nine, cabin attendant, who had taught Eliana to play belote over the Atlantic when she was eleven. And Dov Ben-Ami.

Dov was forty-three, a former naval commando, and had been her bodyguard since she was nine. He was not large. He was the kind of not-large that large men walk around without being told to. His nose had been broken by three different countries, his face did only two expressions, nothing and slightly less nothing, and he called her קטנה, ktana, little one, in Hebrew. He was the only person on Earth apart from her parents who was allowed to.

‘You should sleep, ktana,’ he said somewhere over the Arctic.

‘You should sleep.’

‘I am sleeping.’ He had one eye open.

She was in her favourite clothes, the ones she always flew in, the ones that felt like her own skin: a white blouse, a soft white cardigan, a pleated grey skirt and the Seraphina 1s. She had a paper on metal–organic frameworks open on her laptop and a cup of barley tea Sophie had made her, and she was, for the first time in weeks, very nearly happy. Nobody was looking at her. The sky was enormous and empty. In three days Halmeoni would take her face in both hands, tell her she was too thin, and feed her soup until she apologised.

Over the Bering Sea, with the Arctic sun hanging low and pale in the south, she fell asleep with her cheek on the MOF paper.

She woke because Misha had stopped talking.

The cockpit door was open. It usually was; Misha liked company. Through it she could see him leaning forward, very still, looking out of the left-hand window at something below.

‘Tom,’ he said quietly. ‘Where does the FMS say we are?’

‘On track, Skip. Fifty-two north, one-sixty-four east. Spot on.’

‘Then tell me,’ said Misha, ‘why I can see a volcano.’

She did not understand that until later. Satellite positioning, she would learn, could be lied to. A strong enough false signal from the ground could persuade a receiver that it was somewhere else, smoothly, a few hundred metres at a time, so that the autopilot corrected itself into the lie and every screen in the cockpit agreed. The instruments said they were over open ocean. The instruments were very sure. Only the white cone rising through a tear in the clouds below the left wing disagreed, and a volcano cannot be spoofed.

Tom had gone pale. ‘INS is splitting from the GPS by… Skip, that can’t be right. A hundred and forty miles?’

‘A hundred and forty miles west,’ said Misha, and banked hard right so fast that Eliana’s tea went into the aisle. ‘Which puts us over Kamchatka. Which is where Korean Air 007 was in 1983 when a Soviet pilot shot it down with two hundred and sixty-nine people aboard. Dov. Wake up properly.’

‘I’m awake.’

‘Tom, get me Petropavlovsk. Declare an—’

The radio answered before Tom could call.

It came in on the emergency frequency, in Russian, in a man’s voice that was soft and amused and nothing like an air traffic controller. Unidentified aircraft. You have entered the sovereign airspace of the Free Okhotsk Front. Descend immediately and follow—

The Free Okhotsk Front was a militia that had seized a stretch of the Russian Far East during that summer’s unrest. No government on Earth recognised it. It had been on the news for a week in July and then nobody had thought about it again.

‘Like hell,’ said Misha, and pushed the throttles to the stops.

The missile reached them eleven seconds later.

She never saw it. Nobody ever does. What she remembered afterwards was a sound like a door the size of a cathedral being slammed, a white flash in every window on the left, and the floor trying to go somewhere the walls didn’t want it to. Something punched through the cockpit glass. The oxygen masks dropped like a curtain of yellow fruit. Sophie screamed. The left engine was burning, a long ragged banner of flame streaming past the window. And then Dov’s hand was on the back of her neck, pushing her head down between her knees with absolute and gentle force.

‘Head down, ktana. Head down. Hold your ankles. Don’t look.’

She looked anyway. Through the cockpit door she saw Misha fighting the yoke with both arms and both feet, bellowing at an aeroplane that had stopped listening. And beside him she saw Tom, slumped in his straps, very still, his head at an angle a head should never be at, a dark wet line running down the side of his seat.

Then she did not look any more.

Misha put them down on a gravel bar in a river valley in the Kamchatka highlands, fifty kilometres from the nearest road. He did it with no power on the left side, the hydraulics bleeding out, on a strip of stones and early snow perhaps four hundred metres long. Later, crash investigators from three countries would study the gouge it left in the valley floor and quietly agree among themselves that it should not have been possible. The aircraft hit, bounced, lost its left wing to a stand of stone birches, slewed sideways, and stopped.

Then it was very quiet.

Someone was crying. It was a moment before she understood that it was her.

Dov got her out first. That was policy, and he would not discuss it. He carried her through the tilted door and set her down on the stones under the right wing, then went back for Sophie, who was conscious but vague, with a cut along her hairline that bled the way scalp cuts do, enormously and mostly for show. Then he went back for Misha.

Misha was alive. Misha was pinned. The nose had folded in around his legs.

‘Tom?’ Eliana asked, the third time Dov came out.

Dov looked at her and said nothing, and that was the answer.

She found out something about herself then that she hadn’t known: when the world ended, she did not fall apart. She fell in. Everything narrowed to the next task. She found the first-aid kit. She remembered the course her father had made her take at fifteen, and she climbed into the crushed cockpit with Dov and tied a tourniquet around Misha’s left thigh, tight, tighter than she had known her hands could pull, while Misha told her in a grey voice that she was a good girl, a very good girl, and that she should not look to her left. She didn’t look to her left.

Only afterwards, outside, did she notice she was standing in the snow in her socks.

Her shoes were gone. Both of them, somewhere in the wreckage or the river or the birches. Ninety-eight thousand euros. She laughed, a high wobbling sound, then sat down on a rock and couldn’t stop.

Dov had the satellite phone out. It wouldn’t connect. He had triggered the emergency beacon. He had checked his pistol, a compact Glock he had no legal right whatsoever to have carried through three of the countries they had crossed that day, and tucked it into his waistband.

‘Someone will come,’ Eliana said.

‘Yes,’ said Dov. He was looking up the valley. ‘That’s what worries me.’

They came forty minutes later.

She heard the helicopter first, a deep chopping thud she felt in her chest before her ears found it. It came over the ridge low and fast: a fat, ugly armoured thing with stubby wings hung with rocket pods and a glass nose like an insect’s eye. A Mi-24, Dov said quietly. A Hind. Behind it, grinding down the valley through the snow on eight wheels apiece, came two armoured personnel carriers with turret guns, then a squat military jeep, then a flatbed truck carrying something long under a tarpaulin.

And men. Perhaps thirty of them, piling out of the carriers in mismatched winter camouflage with the Front’s white bear stencilled on their sleeves, spreading across the gravel with their rifles up.

‘Ktana.’ Dov did not raise his voice. He never did. ‘The baggage hold in the tail. Get in. Close it. Don’t come out until you hear me, or someone speaking English with a Western accent.’

‘Misha can’t move. Sophie—’

‘I know.’

‘I’m not leaving them.’

He looked at her for one second, a whole conversation, and something in his face moved toward slightly-less-nothing.

‘Then stay down,’ he said. ‘And don’t be brave. Brave is my job.’

He went out to meet them.

She would think about the next three minutes for the rest of her life.

Dov Ben-Ami did not wait for them to reach the aircraft. He went to them, low and fast across the stones, and the first two men to see him were dead before they understood what they were seeing. He took a rifle from the second as he fell. He was methodical. He was terrifyingly calm. He moved from cover to cover, a boulder, the torn wing, a dead birch, and every time he stopped, somebody across the valley stopped too. Four. Six. Seven.

But there were thirty of them, and one of him.

They pinned him behind the wing with a carrier’s turret gun, a heavy hammering that chewed the aluminium to lace. They flanked him. When they rushed him at last, five at once, he fought them hand to hand in the snow. He broke one man’s arm and another man’s knee. Then a tall man in a coat with a wolf-fur collar stepped into the tangle, took Dov’s elbow full across the face without going down, smiled through the blood from his broken nose, and drove a knife into Dov’s side, under the ribs, to the hilt.

Eliana screamed.

Dov went down on one knee. Two men caught his arms. A third drove a rifle butt into his stomach, then again, and a boot followed, and Dov folded over in the snow and did not get up.

She was out of the aircraft before she knew it, running across the stones in her socks with no plan and no weapon, nothing but the fact that she could not, could not, watch that and stay hidden.

Someone caught her arm and swung her off her feet as easily as lifting a cat.

‘Stop it!’ she shouted, in Russian, because it was their language and it came out before she had chosen it. ‘Stop! He’s hurt, you’ll kill him! It’s me you want, isn’t it? Isn’t it? Leave him alone!’

The men stopped. Not because she had told them to. Because they had seen her face.

It went across the valley like a ripple across a pond. The soldier holding her arm let go without seeming to notice. Someone actually lowered a rifle. For half a second, thirty armed men in the Kamchatka highlands forgot what they had been about to say. It was the Tzofiya response, and she had never hated it more.

The man with the wolf-fur collar recovered first. He wiped his broken nose with the back of his hand, wiped the knife on his sleeve, and walked toward her. Close up he was older than she had thought, fifty perhaps, with pale eyes and a gold tooth and a soft, educated voice: the voice from the radio.

‘Well,’ he said in Russian. ‘You speak like a Petersburg duchess, little one.’

‘I am not little,’ said Eliana through her teeth. ‘I am eighteen years old.’

There was a pause. Then a great bark of laughter went round the circle. Eighteen! And I’m Yuri Gagarin. Someone whistled.

Even here, she thought, with a distant, hysterical sort of wonder. Even here at the end of the world, with Dov bleeding into the snow.

‘Yaroslav Volkhov,’ said the man, with a small mocking bow. ‘Commander, Free Okhotsk Front. And it doesn’t matter to me how old you are, Miss Tzofiya. It only matters that you are worth a great deal.’ He took her chin between finger and thumb and turned her face up to the grey light, the way a jeweller turns a stone. Something in his expression went still and strange. ‘So it’s true,’ he murmured. ‘I thought the photographs were lies.’

She spat at him.

It was not a very good spit. She had never done it before. But it landed, and the soldier behind her seized a fistful of her cardigan and threw her down on the stones, hard, and lifted his boot—

Volkhov hit him. A casual backhand across the mouth, hard enough that the man sat down in the snow.

‘Idiot,’ said Volkhov mildly. ‘The client was very specific. Unmarked.’ He turned his back on all of them, took out a satellite phone and dialled.

Eliana lay where she had fallen, snow soaking through her socks and her blouse, and listened.

‘Package secured,’ said Volkhov, in English now, accented and careful. A pause. ‘Yes. Intact.’ A longer pause, and a voice at the other end. She couldn’t make out the words, only the tone: cool, female, unhurried. ‘And the others?’ Another pause. Volkhov’s face did not change. ‘Understood. Everyone.’

He hung up.

‘Burn the aircraft,’ he told his men in Russian. ‘With everyone in it. Put the bodyguard back inside first.’

‘No,’ said Eliana. ‘No. No, please. Please—’

No one was listening. Two men were already dragging Dov toward the wreck by his arms, leaving a red smear across the snow. Another was lifting a jerrycan out of the jeep. Inside the aircraft Misha was shouting hoarsely. Sophie was crying.

Eliana lay on her back on the stones, the Hind’s rotors thundering overhead and the sky above it low and grey and heavy, and found there was no more fight left in her body. It had all gone. There was nothing left but one word, which she didn’t so much say as breathe.

Please.

Her grandmother had once told her what her name meant. Eliana: in Hebrew, my God has answered. ‘Every name is a prayer,’ old Tzofiya had said, holding her granddaughter’s small face in both hands. ‘Yours is one that has already been heard. Don’t ever forget it, sheyfele.’

Please.

High above the valley, something in the clouds turned green.

At first it was only a point, a spark, like a star in daylight. Then the clouds around it began to move. Not drift, not blow: they parted, in a perfect widening circle, as if someone had laid a hand flat against the grey ceiling of the sky and pushed.

A shaft of light came down through the opening. And in the light, something white was falling.

Every man in the valley looked up.

Eliana looked up.

And the sky answered.

Forty-four minutes earlier, and eight thousand kilometres west, Aria Zadkiel had decided not to go.

It was three minutes past ten on a September night in Oxford. The long vacation had emptied the city of half its students, and the flat on Walton Street was quiet apart from Toby, who had been evicted from his parents’ house in Gloucestershire for reasons he described only as ‘the swan incident’, and who was asleep on the sofa with a biscuit on his chest. Aria was in his room reading a paper on lattice cryptography when the band on his wrist went warm.

‘Survivors?’

Beacon is transmitting. Rescue converging. Estimated arrival, forty minutes.

He sat for a moment with the paper on his knee.

The Choir had argued for an entire winter about what the Pantheon was for. Benedetti had wanted it to stop wars. Voss had wanted it to stop nothing, ever, and be buried. Kuramoto, as usual, had found the sentence they could all live with, and had written it on the whiteboard in the Nave, where it still was.

It does not replace the world’s hands. It catches what the world drops.

A crashed aircraft with a beacon and a rescue already on its way was not dropped. It was being caught. That was the world doing its job, and the Pantheon had no business elbowing in. He did not pick sides. He did not make himself the planet’s ambulance. If he started, he would never stop, and somewhere at the bottom of that road was the line ZERO read to him every night.

‘Not ours,’ he said, and went back to his lattice.

He read the same paragraph eleven times in the next forty minutes.

At 22:44, ZERO spoke again, and its voice had changed. It did not usually have a tone. It had one now.

Aria was already on his feet.

‘Who’s the one?’

Principal passenger. Eliana Seraphina Tzofiya.

‘Who?’

There was a pause of perhaps forty milliseconds, which for ZERO was the equivalent of a long, slow blink.

You are statistically the last person in the United Kingdom to ask that question.

‘Does it matter who she is?’

To the mission profile, no. All lives are weighted equally.

‘Then why are you editorialising?’

I was raised by seven academics. Editorialising is hereditary.

He pushed back his sleeve.

‘Pantheon,’ said Aria. ‘Wake.’

The band came alive. White metal poured up his forearm like frost climbing a window in fast-forward, over the elbow, the shoulder, across his chest and down his back, and where it went it changed. Plates rose out of it and locked together with a sound like small bells. Gold ran along the seams. Beneath the white, the Psycho-Frame lit in fine lines of green and gold, a second skeleton of light laid over his own. The helmet closed over his face in a single smooth sweep, crown and V-fin and visor, and the world went dark, and then came back far brighter than it had any right to be.

Then the ZERO System opened, the way it always did, like a door into a room containing a trillion more doors. Pain flared at his temples, white and total, for a quarter of a second, until the ELS armour and the VEDA link reached in and took the weight off him, the way two friends take the ends of a heavy table. He breathed out. Castor and Pollux sang in his chest.

In the next room, Toby stirred.

‘’Ria?’ he mumbled, without opening his eyes. ‘S’very green in there. Is the kettle on?’

Aria stood in the doorway in the dark, six foot one and a bit of white-and-gold armour, halo glowing faintly behind his head.

‘Go back to sleep, Toby.’

‘M’kay,’ said Toby, and did.

Quantum burst plotted. Destination 56.21N, 158.74E, altitude 1,200 metres.

‘Go.’

The Quantum System does not move you. Rabbi Adler had spent a whole winter over a chessboard trying to make a twelve-year-old understand that. It doesn’t carry you from one place to another, because there is no between. It arranges for the universe to agree that you were always somewhere else.

Aria had never found that comforting. He found it so now.

One moment: a dark bedroom in Oxford, a sleeping boy with a biscuit on his chest, a smell of ozone, a sphere of green particles folding inward like a flower closing for the night.

The next: the sky over Kamchatka, eight thousand kilometres east and eleven hours ahead, at a quarter to ten in the morning, twelve hundred metres above a river valley. Falling.

ZERO opened all the way.

There is no good way to describe what the ZERO System does to a human mind. Natalia Ilyinskaya had tried for thirty years, and the closest she ever came was this: It shows you the future the way lightning shows you a landscape. All at once, and for the rest of your life you see it on the inside of your eyelids.

Aria saw the valley. Then he saw it four million times.

Every soldier tagged and weighed. Every rifle, its round count, the temperature of its barrel. The Hind’s rotor speed, its pilot’s heart rate, its rocket pods. The two carriers. The jeep. The truck, with its long shape under the canvas that ZERO could not identify, which bothered him. The wreck of the aircraft, and inside it two heartbeats, one ragged. Beside it, a man being dragged through the snow by his arms, a third heartbeat, slowing. And on the stones in front of it, lying on her back and staring up at him, a fourth: small, and very fast.

Branching out of this one instant like the veins of a leaf, there were four million one hundred thousand futures.

In three million nine hundred thousand of them, the girl died.

The pattern was simple once you saw it. The Hind’s pilot had standing orders, which ZERO pulled from his radio log in a microsecond: if anything went wrong, put the rockets into the wreck and everything around it. The instant the Pantheon became a threat, the Hind would fire. Rockets are fast. Not as fast as the Pantheon. But the Pantheon could be in one place at a time, and the rockets would be in eight.

So the Hind had to stop being a threat before it knew there was one.

‘Bits,’ said Aria.

The wings opened.

Forty-eight blades unfolded from his back in one rippling motion, like a hand of cards fanned by a conjurer: white and gold and crystal, each with a core of green fire. The Minovsky Drive lit them from inside, and the Wings of Light spread out behind him, two vast translucent sheets of radiance fifty metres from tip to tip. Every person in that valley would later describe the shape with the same word, in Russian or in English, whether or not they believed in it.

Angel.

Two blades left the wing.

They crossed twelve hundred metres in the time it took the Hind’s pilot to lift his eyes. One went through the engine housing above the cockpit. One went through the tail boom. They didn’t explode. They didn’t need to.

Where they went in, silver spread.

It ran across the Hind’s green-painted armour like frost across a window, fast and branching and beautiful, and wherever it passed, the machine stopped belonging to the men inside it. The rocket pods’ arming circuits went dark. The rotor slowed. The pilot hauled on a stick that no longer answered, screaming into a radio that had become, in one second, a lump of living metal humming a single note. Then the Hind, with perfect and terrible gentleness, sank down and set itself on the snow at the edge of the valley, level as a table.

Then it melted.

It didn’t burn and it didn’t crumple. It melted, upward and outward, a whole armoured gunship running away into ribbons of quicksilver that rose into the air and streamed across the valley to the white figure above, poured into its wings, and became four new blades, white and gold and crystal, each with a core of green.

The crew were left sitting in their seats on the bare snow. The seats were the only thing it hadn’t wanted. ZERO had judged them too poorly made to bother with.

Somewhere in the valley a soldier said, in a high, cracked voice, in Russian: ‘Он сожрал вертолёт.’

It ate the helicopter.

Twelve kilometres up the valley, on a ridge, the crew of a stolen missile launcher did what they had been trained to do with anything in the sky. A missile left the rail on a column of white smoke.

Impact in six point one seconds.

Aria reached back over his right shoulder and drew.

The sword lived along his spine, folded into the roots of the wings, and it unfolded as it came out: a greatsword as long as he was tall, white-gold, broad as a door at the hilt, with an edge that was not yet an edge, only a seam of darkness along the steel.

Then the twin drives spun up, the photon battery opened its throat, and the seam ignited.

It was hard to look at. That was the first thing anyone who ever saw the GN-Photon Singularity Blade said about it, and they always said it with a kind of slipperiness in their voices, as though their minds had tried to hold the memory and it had slid off. Along the cutting edge ran a line of absolute black, blacker than the space between stars, a black that seemed to pull the eye down into it. Around it the air shimmered and bent. Snowflakes falling near it curved out of true.

A microscopic black hole, stretched along a metre and a half of steel. Asante-Grey had built it with tears in his eyes, though he always claimed afterwards that it was the smoke.

The missile arrived. Aria cut it.

It didn’t explode and it didn’t break. There was a missile, then a stroke of black through the air, then two pieces of missile a hand’s breadth apart, tumbling, and the hand’s breadth between them was not anywhere. It had been taken off the universe’s list of places. The pieces fell into the river, inert. The fuse had been in the part that no longer existed.

On the ridge, the launcher was readying a second.

Aria let the sword fold back into the wings and brought the rifle up. The Twin Satellite Buster Rifle unfolded out of both forearms in two long white barrels, and he dialled it down to two percent. ZERO had already checked: the launcher’s crew had run for it the moment their first missile left the rail. Aria was not merciful. Aria was precise. He had learned long ago that the two look the same from a distance and are nothing like each other up close.

He fired.

Twin threads of light, thin as pencil lines and very bright. Where the launcher stood, the ridge turned to glass in a flat circle forty metres across.

Then the carriers opened up.

Thirty-millimetre autocannon, both turrets, sustained fire. The rounds hit him in the chest and shoulders and visor, a hailstorm made of hammers, and they didn’t ricochet. They sank. They went into the white armour the way stones go into mercury, each with a soft rippling ring where it struck, and the armour drank them and grew. In the corner of his vision ZERO kept a running total: mass assimilated, ninety kilos, a hundred and ten, a hundred and forty.

He landed, and walked forward through it.

The first carrier’s squad had climbed out to look at the girl. ZERO showed him an empty troop compartment and a driver already scrambling out of the hatch. Aria cut the carrier in half without slowing down. The two halves fell a metre apart. The metre between them was gone, and its edges shone like obsidian.

The second carrier was not shooting at him.

ZERO caught it in the same instant he did: the turret was traversing away from him, toward the wreck. Toward the two people inside it, the man being dragged to it, and the girl lying on the stones in front of it. They had been told everyone, and when the angel came they had remembered their orders.

They obeyed that order. It was the last one they ever obeyed.

Six blades went through the second carrier from six directions at once. It was a carrier, and then it was a sculpture of silver frost, and then the sculpture was quiet.

After that it went very fast.

The soldiers broke. Some ran. Some fired. Some did both. An RPG round flashed across the gravel and burst against his shoulder, and the armour swallowed the blast like a man swallowing a sneeze. Aria raised his left hand, palm down, and pressed.

That was the Psycho-Frame, Kuramoto’s bones: the strangest system of them all and the one he trusted least, the one that turned what the pilot wanted into something that pushed on the world. He thought down, and everything in the valley that was holding a weapon went down. Thirty men slammed flat against the stones as if gravity had been turned up fivefold, their rifles skittering out of their hands. The blades swept the field in a glittering arc, and every weapon they touched turned to silver dust and blew away on the wind.

Twenty-one seconds since he had entered the valley.

One hostile remaining under arms.

He turned around.

Volkhov had the girl.

He had dragged her up off the stones by the back of her cardigan and was holding her in front of him with one arm across her chest and the knife at her throat, its point pressing a dimple into the skin under her jaw. He was breathing hard through his broken nose. He didn’t look afraid. He looked like a man who had worked out long ago that he was going to hell and had decided to be interesting on the way.

‘Close enough,’ he called in Russian. ‘Stop there, angel. Or I open her up, and you came all this way for nothing.’

Aria stopped. Twenty metres.

Then he spoke for the first time, and his voice came out of the armour in Russian: calm, unhurried, with the slightly over-correct precision of someone who had learned the language from Tolstoy and never had cause to use it on a person.

‘Let her go.’

‘Or?’ Volkhov laughed. Even now it was a good laugh. ‘You’ll eat me like the helicopter? Go on, then. You’re fast. Are you faster than this?’ The knife pressed. The girl made a small sound.

Forty-one percent was not acceptable.

‘You have three seconds,’ said Aria.

‘Or what?’

‘Two,’ said Aria.

Volkhov opened his mouth to answer, and found that his knife hand would not move.

It lasted a twentieth of a second. It was enough. The wings flared, the air cracked, and Aria was there. Not running, not flying, simply there, his hand closed over Volkhov’s. He squeezed. Bones gave. The knife went silver and crumbled to dust.

With his left arm he drew the girl gently away.

Then he punched Volkhov in the stomach.

He did it with care. Four percent. He had learned his body the way a pianist learns a keyboard, so he knew exactly what four percent of the Pantheon’s right fist would do to a man, and he chose it. The blow lifted Volkhov a full metre off the ground. The air left him in one huge whoof; he folded around the fist like a book snapping shut; and when Aria let him drop he went down on his knees in the snow and was sick, and then could not even manage that, only kneel with his forehead against the stones, unable to draw breath.

‘That,’ said Aria, ‘was for the man you stabbed.’

Silver frost spread out of the stones around Volkhov’s knees and wrists, and set hard. He did not get up again.

The girl swayed. He caught her.

She was very light. That was his first thought, and he was faintly ashamed of how clinical it was: thirty kilos or so, soaked through, socks on the snow, cardigan torn at the shoulder, a fine red line under her jaw where the knife had been. She was shaking so hard her teeth clicked.

She looked up at him.

Something happened in the corner of his vision. Without being asked, ZERO had opened a panel.

‘Close that,’ said Aria, subvocally.

Closing.

It did not close for another two seconds. He noticed that. He filed it.

‘Are you…’ The girl’s voice was small and hoarse, and she was speaking English now, the clipped English of a London girls’ school. ‘Are you real?’

He didn’t have time to answer, because behind them, on the flatbed, the tarpaulin tore.

What came out of it was black.

It unfolded like an insect from a chrysalis: four metres tall, narrow-waisted, long in the limb, plated in something matte and dark that drank the snow-light. Its head was a smooth blade shape with a single red slit across it. In its right hand a lance ignited, a rod of white-violet plasma that hissed in the falling snow.

ZERO did something it had never done before. It hesitated.

Unknown unit. No match in any national database. Composition— a pause of four milliseconds, which for ZERO was a long silence— composition partially consistent with our own. Self-organising metallic substrate. Similarity eleven percent. Inferior. Primitive.

Not natural.

Aria went cold all over: under the armour, under his skin, all the way down to the place where he kept a wet afternoon in Geneva.

Someone else is building one.

The black machine moved.

It was fast, faster than any machine had a right to be, faster than anything on Earth except the thing in front of it, and it did not go for Aria. It went for the girl. ZERO had the reason before he had finished asking: a second standing order. If the package cannot be recovered, the package is to be denied.

The lance came down.

The wings closed.

Sixteen blades slammed together in front of Eliana in a curved wall of white-gold crystal, and the plasma lance struck it and splashed off like rain off a windscreen. Aria set the girl down behind the wall, on her feet, on the snow.

‘Close your eyes,’ he said.

She didn’t. He realised later that he had known she wouldn’t.

He turned to face the machine. It was already coming again, lance drawn back, red slit pulsing. ZERO drew its futures across his vision in a thousand fine lines, every stroke it could possibly make, and every one of them ended in the same place.

Aria raised his right hand.

The light came up in it from inside. It began in the palm, a glow that was iridescent, every colour and none, like oil on water turned to fire. It climbed his fingers and brightened, and brightened, until the snow for twenty metres around threw no shadows at all. The twin drives sang. Every line of the Psycho-Frame beneath his armour blazed gold. In the corner of his vision ZERO wrote a single line, as Benedetti had insisted it always would, because the old Italian believed that if you were going to do something this terrible you should at least have the decency to name it.

The black machine lunged.

Aria stepped inside the lance and drove his hand into its chest.

Omega Finger.

His fingers went through the black armour as if through water. Deep inside, he felt them close around something that pulsed. He felt the GN-photon particles pour from his palm into the machine’s molecular structure, into every seam and crystal lattice and every bond between every atom, hyper-condensed, volatile, waiting.

He squeezed.

It didn’t explode. It unravelled. From the point where his hand was buried, the black machine came apart in rings, rings of light and rings of fine black ash, spreading outward through its body: the chest, the shoulders, the long arms, the lance guttering out, the red slit going dark. It was undone from the inside, thread by thread and bond by bond, until there was nothing left of it at all.

Nothing, that is, except a shape hanging in the air where its heart had been: a cloud of drifting green motes that held together, for one long breath, in the outline of a human hand.

Then that faded too.

In the silence afterwards, something crackled.

It was the satellite phone on Volkhov’s belt. A woman’s voice, faint and cool. Commander? Commander Volkhov. Report.

Aria bent, unclipped the phone, and held it to the side of his helmet.

He said nothing. On the other end, for perhaps five seconds, neither did she.

Then: Oh, said the voice, with something like pleasure. It’s you. They told me you were a rumour. She had no accent whatsoever. It was the voice of someone who had sanded every trace of where she came from off her vowels, deliberately, the way you file the serial number off a gun. How very exciting.

‘Who are you?’ said Aria.

Someone who will be seeing a great deal more of you. A pause. Do give Miss Tzofiya our regards. And do tell her father he really should have taken the meeting.

The line went dead.

ZERO was already tracing it, and Aria watched the trace run in the corner of his eye: a satellite over the Pacific, a relay in Jakarta, a server farm outside Reykjavík, nineteen hops, twenty-four, thirty, until it reached the end of the chain and found nothing there. Not a dead end. An address that did not exist. A door painted on a wall.

Aria closed his hand. The phone went silver, then to dust, and the dust ran into his palm like water into sand.

Dov Ben-Ami was still alive.

They had dragged him almost to the wreck before the sky opened. He lay on his back in the snow with a hand pressed to his side, and the snow around the hand was very red, and his face had gone the colour of candle wax. When the white figure knelt beside him he tried, with the last of his strength, to hit it.

‘Stop that,’ said Aria. ‘Let me see.’

He laid two fingers against the wound. Silver ran out of them, a thin film of living metal that slid into the cut like ice forming over a pond, sealing it, binding it, warm.

‘Temporary,’ said Aria. ‘It’ll hold for a couple of hours. You need a surgeon.’

Dov’s hand found the white forearm and gripped it with surprising strength. His eyes went past the visor to the girl standing in the snow.

‘Ktana,’ he whispered. ‘Is she—’

‘She’s fine.’

‘Who… are you?’

‘Nobody. Don’t talk.’

The grip tightened. ‘If you hurt her—’

‘I won’t,’ said Aria. Something in the way he said it made the old commando let go, close his eyes, and breathe.

He peeled back the cockpit of the jet like the lid of a tin and lifted Misha out. The old pilot swore at him in three languages, then at the tourniquet, and then, when he learned who had tied it, went quiet and wept a little. He brought out Sophie, who looked up at him, said very clearly, ‘Oh. I’ve died,’ and fainted.

Then he looked at the right-hand seat of the cockpit, and the young man in it.

He is beyond assistance. Recommend we prioritise the living. Mass and time are both—

‘We’re not leaving him.’

Aria turned. The girl had come up behind him in her socks. Her arms were wrapped tight around herself and she was shaking so hard it looked painful, and her face, under the snowmelt and the tears and the red line on her jaw, was very calm.

‘His name is Tom Ashdown,’ she said. ‘He’s from Leeds. He’s getting married in April. Her name is Priya, she’s a nurse.’ Her voice wobbled, and she steadied it like a hand pressed flat on a table. ‘She has to be able to bury him. Please. I won’t go without him.’

Aria looked at her.

It was, though she would not know it for a long time, the first time he actually looked at her. Not at the face ZERO had measured to five decimal places. At her: a very small young woman in the snow at the end of the world, who had lost her shoes and her plane and her friend, who had been held at knifepoint and thrown down on the stones and was shaking with cold, standing up straight and making demands of an angel on behalf of a dead man’s fiancée.

‘Okay,’ he said.

Twelve blades left his wings and linked edge to edge in the air like the scales of a fish, settling into a long floating platform that glowed faintly green and was warm to the touch. He laid them on it one by one: Dov, Misha, Sophie. Tom last, wrapped in the foil blanket from the emergency kit, his face covered.

Then he turned back to the girl standing in the snow in her ruined socks.

‘Your shoes?’

‘Somewhere in Kamchatka.’ A wet, slightly unhinged laugh. ‘They cost ninety-eight thousand euros.’

There was a pause.

‘That’s a stupid amount of money for shoes,’ said the angel.

‘I know,’ said Eliana Tzofiya, and burst into tears.

He picked her up.

He did it the only way that seemed to make sense: arms around her, lifting her up against his chest so that her feet left the snow and dangled, her face level with the gold V of his crown, and her arms went around his neck before she had decided anything. It was the way her father held her. She would think about that later. Right then she only knew that the armour was warm, not metal-warm but person-warm, thirty-seven degrees exactly, and that she had stopped shaking.

The wings opened. The light came.

They rose out of the valley into a clearing sky.

Esso is a village of wooden houses in the heart of Kamchatka, a hundred and forty kilometres from the crash site, where the roads give up and the hot springs begin. It has a school, a museum of the Even people, a clinic with eleven beds, and some of the most beautiful mountains on Earth.

They flew there slowly.

He could have done it in under a second. ZERO had pointed this out. Aria had pointed out that under a second, at the accelerations involved, would turn three injured people and one dead one into a fine paste, and ZERO had conceded. So they went at the pace of a light aircraft, inside a sphere of soft green GN particles that kept the cold out and the warmth in and let no wind touch them at all. The valley fell away beneath them. The river became a silver thread. The Sredinny Range rose white and black on their left, and ahead, catching the first full sun of the day, the vast snow cone of Ichinsky stood up out of the cloud like a cathedral nobody had built.

Eliana had never seen anything so beautiful. She told him so.

‘Mm,’ he said.

She waited. He didn’t say anything else.

‘Are you a person?’ she asked.

‘Mostly.’

‘You speak Russian like someone who learned it from books.’

‘I did learn it from books.’

‘Which books?’

A pause. ‘Tolstoy, mostly.’

She laughed, a small, startled, exhausted sound that surprised them both. ‘That explains it. You sound like Prince Andrei.’

‘Is that bad?’

‘He’s very serious. He keeps looking at the sky.’

The angel was looking at the sky. He looked at the horizon, at the mountains, at the floating litter of blades beside them with its three wounded passengers and one dead one. He looked at everything, she slowly realised, except her.

It was the strangest feeling.

For fifteen months she had been looked at. By cameras, by strangers, by thirty armed men in a frozen valley who had forgotten for half a second that they were holding guns. Everyone looked. Nobody saw. And now here she was, held in someone’s arms, closer to another human being than she had been to anyone outside her family since she was small, close enough that if he’d had a face she could have touched it, and he was not looking at her at all.

She looked at the visor instead. It was gold-tinted and opaque, and in it she could see her own reflection: hair wild, eyes swollen, a red line under her jaw. For years she had looked away from her reflection whenever she caught it. She did not look away now. It was easier, somehow, with someone right there not looking.

‘Who are you?’ she asked.

‘No one.’

‘No one doesn’t come,’ said Eliana. ‘No one doesn’t fall out of the sky. I prayed.’ Her voice cracked on the word. ‘I’ve never prayed for anything in my life, not properly, and I lay there in the snow and prayed, and the clouds opened, and you—’

And then it hit her.

It came all at once, the way doctors would later tell her it often does. The knife. The boot coming down. The dark line down the side of Tom’s seat. Dov folding over in the snow. The smell of jet fuel. Her lungs locked. She couldn’t get air in; she tried, and her chest would not open, and the sky began to go grey at the edges, and she clutched at the armour with both hands—

‘Breathe.’

His voice had changed. Lower. Close. There was no Tolstoy in it now.

‘In for four. Come on. One. Two. Three. Four. Hold it. Now out for four. You’re not falling. I’ve got you.’

She breathed in. Four. Held it. Let it out. Four.

‘Again. You’re not falling. I’ve got you.’

They did it eleven times, high over Kamchatka, until the grey went away. And somewhere around the seventh, pressed against the white armour with her ear to his chest, she heard it: a deep, slow, double hum far down inside the machine. Thrum-thrum. Thrum-thrum. Like a heartbeat. Like two hearts beating together.

She didn’t know about Castor and Pollux. She didn’t know anything about him at all.

But that was the moment Eliana Seraphina Tzofiya, who had been stared at by fifty million people and looked at by every camera in the Western world, fell completely, catastrophically and irreversibly in love with the only one who wouldn’t look.

Inside the armour, Aria Zadkiel was having a slightly different experience.

Pilot heart rate elevated. Plus four beats per minute over baseline.

‘Altitude,’ he subvocalised.

Altitude is six hundred metres. You have flown at forty thousand.

‘Cold, then.’

Internal temperature is twenty-one point zero degrees.

‘Combat comedown. Adrenaline.’

Your adrenaline returned to baseline ninety seconds ago. Shall I reopen the facial harmonic analysis? I have refined the index to six decimal places.

‘Zero.’

Closing.

He had noticed, of course. You would have had to be dead not to notice. You would have had to be dead and also in a different valley. She was, objectively, by every metric the most powerful combat computer ever built could bring to bear, the most beautiful human being alive. ZERO had said so. ZERO did not exaggerate. It didn’t know how.

Aria filed the fact where he filed such things, next to the boiling point of liquid nitrogen and the population of Belgium. True. Interesting. Nothing to do with him.

Everyone you hold is a door.

He held her a little more carefully, kept his eyes on the horizon, and did not look down.

‘Will I see you again?’ she asked, as the first wooden roofs of Esso came into view, steaming in the cold.

‘I hope not.’

It stung. She was surprised by how much. ‘Why?’

‘Because if you see me,’ he said, ‘something’s gone very wrong.’

She was quiet for a moment. ‘I’m Eliana,’ she said.

‘I know.’

‘What’s your name?’

The silence went on so long she thought he wouldn’t answer.

‘You can call it Pantheon,’ he said at last.

‘Not it. You.’

Nothing.

They came down over the village. As they descended he spoke once more, half to himself, in the tone of someone reminding himself of a time zone. ‘You’ll be all right now. Get some sleep. It’s late.’

‘It’s half past ten in the morning,’ said Eliana.

A tiny pause.

‘Not where I live,’ he said.

She filed that away. She was, after all, the girl with four A*s who read physical chemistry for fun. Not where he lives. Kamchatka was eleven hours ahead of London. Half past ten in the morning here was half past eleven at night in—

She held on to it the way you hold a smooth stone in your pocket.

At half past ten on a September morning, Esso’s main street was not busy. At the moment the angel came down out of the sky it contained Baba Klava Ivanovna, eighty-four, carrying a bucket of water from the pump; her great-grandson Petya, eleven, on a bicycle; Sergeant Ilya Mordvinov of the district police, eating a pirozhok in his car; three tourists from Novosibirsk; the entire staff of the general store, which was two people; and, by the time the white figure touched down in front of the clinic in a swirl of green light, about eighty more residents who had heard the sound in the sky and come running. Every one of them, without exception, had a phone out.

Aria set the litter down at the clinic door, gently. A stout woman in a white coat came out onto the step: Dr. Galina Petrovna, forty years in Esso, who had delivered half the village and stitched up the other half. She looked at the angel. She looked at the four people lying on a floating bed of glowing crystal blades. She said a word in Russian that doctors do not say in front of patients, and started giving orders.

Then he set Eliana down.

Her socks met the mud of the street. She flinched at the cold.

He looked down at her feet. Then he crouched and laid a hand over each foot in turn, and silver flowed from his palms over her toes and around her heels, shaped itself and set: a pair of small white boots, smooth and seamless, with one faint line of gold at each heel.

‘From the helicopter,’ he said. ‘They won’t do anything. They’re just shoes.’

She stared at them. She stared at him.

He stood and turned to go, and she grabbed his hand.

She didn’t decide to. It was the same part of her that had run across a television studio, and up to an auction table, and out of a crashed plane into a field of soldiers: the part that moved before the rest of her had time to be afraid. She caught his armoured fingers in both of hers and held on.

‘Wait—’

He stopped.

For a moment they stood like that, in the street of a wooden village at the edge of the world, with eighty phones held up around them in a ring of silence.

‘Let go, Eliana,’ he said. Quietly. Not unkindly.

She let go.

He rose a metre off the ground. Then three.

‘Everyone stand back,’ he said in Russian, to the street.

Nobody stood back.

The Wings of Light opened.

And Aria Zadkiel, genius, pilot of the most dangerous machine in human history, the man who had punched through the heart of an asteroid and stopped two navies with a single word, had not at any point in his calculations accounted for the downwash of a Minovsky Drive at close range over a muddy village street.

It hit Esso like a fist. A blast of hot air; steam boiling up off the hot-spring pools; snow and dust and leaves bursting outward in a ring. Baba Klava’s bucket went over. Petya’s bicycle fell down. Sergeant Mordvinov lost his pirozhok. And Eliana’s grey pleated skirt, light as a paper lantern, went straight up.

She slapped it down. Half a second too late.

Half a second, in front of the entire main street of Esso, Sergeant Mordvinov, three tourists from Novosibirsk, Baba Klava, little Petya, and eighty phones.

And him.

There was a silence in which you could have heard a snowflake land.

Eliana Seraphina Tzofiya went red. It started at her collar and climbed, and kept climbing, until her ears were scarlet and her eyes were bright with tears of an entirely different kind. She held her skirt down with both fists. She stared up at the white figure hanging in the sky above her, its great wings of light rippling, its gold visor turned toward her and perfectly still.

She took the biggest breath of her life.

Я тебя НЕНАВИЖУ!

And then, because some of the tourists might not speak Russian, and because she wanted with every fibre of her body to be understood by the entire world, in English:

I! HATE! YOU!

It echoed off the mountains. Two valleys over, a bear looked up.

High above, the angel hung motionless for exactly one frame of video.

Vocal stress analysis. Statement: false. Confidence: ninety-eight point eight percent.

‘Not our problem,’ said Aria.

It is a little bit our problem.

‘Go.’

The sky flashed green. The clouds over Esso parted in a perfect ring and closed again. Three seconds later a sonic boom rolled down the valley and rattled every window in the village.

On the litter, as two orderlies lifted him toward the clinic door, Dov Ben-Ami opened one eye.

‘Ktana,’ he said faintly. ‘Did you just scream at an angel?’

‘He’s not an angel,’ said Eliana, crimson to the ears, standing in the mud in a pair of seamless white boots. ‘He’s an idiot.’

‘Mm,’ said Dov, and passed out smiling.

Baba Klava, who had lived through the Soviet Union, its collapse, two eruptions and a tsunami warning, set her bucket upright and said to nobody in particular:

‘Well. That’s young people for you.’

At 23:39 British Summer Time, a sphere of green light folded open in a dark bedroom on Walton Street, and a tall young man stepped out of it in a grey hoodie with a band of white metal cooling on his wrist.

Fifty-two minutes.

Toby was still asleep on the sofa. The biscuit was still on his chest. It had moved slightly, rising and falling, which was the only evidence that any time had passed.

Aria made a cup of tea. He was surprised to find his hands not quite steady, and he looked at them for a while with mild curiosity, the way he’d look at a bug in somebody else’s code. It wasn’t the fight. The fight had been twenty-one seconds of arithmetic. It was the ZERO System’s afterload, he decided: four million futures in a human skull, even with the armour carrying most of the weight. It always left a tremor.

He decided that firmly, and drank his tea.

He did not think about a black machine with eleven percent of his own armour’s soul in it. He did not think about a word in a routing header. He did not think about a girl standing in the mud in a pair of white boots, holding his hand in both of hers.

He was very good at not thinking about things. He had had ten years of practice.

‘MATE.’

The door hit the wall. It was twenty to seven in the morning. Aria, back from his run for ten minutes, looked up from his laptop, where he was fixing line six.

Toby Fairweather stood in the doorway in boxer shorts and one sock, holding his phone in both hands like a man presenting a holy relic.

‘Have you seen… no, of course you haven’t, you never see anything, you live under a rock with your birds. Look.’

On the screen: a wooden village, a muddy street, a white figure with wings of light, and a small girl in a grey skirt, her face the colour of a postbox, screaming at the sky. One hundred and ninety million views. It had been up for seven hours.

‘The Seraph,’ said Toby. ‘The actual Seraph, the asteroid one, the navy one, the thing the conspiracy lot are all mental about. It rescued a plane in Russia last night. On camera. It ate a helicopter, Aria, there’s footage from one of the soldiers, it’s horrifying, it’s the best thing I’ve ever seen. And then it carried her to this village and put her down, and then… look…’

‘I’m looking.’

‘She screamed I HATE YOU at it! At the Seraph! It’s trending in a hundred and forty countries! There are remixes! There’s a K-pop version!’

‘Who is she?’ said Aria.

Toby lowered the phone very slowly.

‘Who,’ he repeated, ‘is she.’

‘Mm.’

‘That’s Eliana Tzofiya.’

Aria looked at him blankly.

‘The Nine-Second Girl, Aria. Most Beautiful Face in the World 2023. Fifty million followers. Kelly Kim’s daughter. Stevansky’s daughter, the Stevansky, the one who owns half the City. She is the most famous face on the planet. My little sister has her poster on her ceiling. I have her poster on my… that’s not important. How do you not know who she is?’

‘Doesn’t ring a bell,’ said Aria, and went back to line six.

Toby stared at him with the expression of a man watching someone fail to notice a meteor strike.

‘Well, it had better start ringing,’ he said, ‘because she’s coming here. Oxford. Chemical Engineering. It was on the BBC this morning. Freshers’ Week is in a month. The whole university is going to lose its collective mind.’

Aria’s fingers paused on the keyboard. Only for a moment.

‘Hm,’ he said.

Of course she is, he thought.

When Toby had gone to shower, ZERO spoke.

Pilot. A minor point regarding the footwear.

‘What about it?’

I estimated their residual ELS content at zero. On review, it is zero point zero zero three percent. The metal came from the helicopter, but it passed through our wings first. In the technical sense, the boots are alive.

Aria put down his tea.

They will not do anything, ZERO went on. Probably. But they will remember us. And they will grow warm when we are near.

‘Why,’ said Aria, very calmly, ‘didn’t you mention this in Kamchatka?’

You did not ask. Also, you were busy not looking at her.

Alexander Stevansky reached Esso fourteen hours after the crash.

It should not have been possible. No Western executive had landed in that part of Russia in two years. He managed it with a phone call at three in the morning from a hotel in Zurich to a man in Moscow whose father had owed his father a debt since a long, cold winter in 1991; with a chartered Russian aircraft; and with a sum of money later described, by people who knew about such things, as impolite.

He came through the door of the eleven-bed clinic still in his overcoat. Dr. Galina Petrovna, who had been about to tell him visiting hours were over, took one look at his face and stepped aside.

Eliana was sitting on the edge of a bed in a borrowed jumper, with Dov asleep in the next one, stitched and transfused and snoring. When she saw her father she didn’t say anything at all. She just held up her arms, the way she had when she was three.

He lifted her. All the way up, her white boots dangling, and held her; and the hardest man in global finance put his face into his daughter’s hair and wept like a child in front of a district doctor, a sleeping commando, and an old pilot with two broken legs who very politely pretended to be asleep.

On speaker, Kelly was crying in Korean. On a second line from Seoul, Halmeoni was crying in Korean louder.

Later, when it was quieter, Eliana told him everything. About Tom. About Priya, and April. Alexander listened, and when she had finished he said only: ‘His family will want for nothing. Priya will want for nothing. Not ever. I swear it.’ She knew he meant it, because her father did not swear to things he didn’t mean.

Then she said: ‘Papa. The man with the knife had a phone. A woman was on it. The angel answered it. She said to tell you that you should have taken the meeting.’

Alexander went still.

Not the stillness of shock. It was the stillness of a very large man who has just heard, faintly and a long way off, the sound of something coming toward his house: something he had been expecting for thirty years, and had hoped, against all his own good sense, would never arrive.

‘Don’t worry about that, Ellochka,’ he said gently.

She did. She worried about it most of the night.

But near dawn, with her father asleep in a plastic chair under his overcoat, she thought about something else instead. A voice saying in for four. A slow double heartbeat. A visor that had looked at everything in the world except her.

Not where I live.

‘Papa,’ she whispered, though he was asleep. ‘I’m going to find him.’

In his chair, Alexander Stevansky, who was not nearly as asleep as he looked, said without opening his eyes: ‘To thank him?’

‘To yell at him.’

Her father’s shoulders shook with silent laughter.

Under the bed, the white boots stood side by side, cold and quiet. Waiting.

In a room without windows, in a building without an address, a long table of black glass reflected one clip of video playing on a loop.

A white hand, glowing. A black machine coming apart in rings of light. A cloud of green motes holding, for one breath, the shape of a hand.

‘We lost a Grigori,’ said someone at the table.

‘We lost nothing,’ said the woman with no accent. ‘We bought something. Look at it. Look at the handprint. Forty years we’ve been coaxing our fragment of Tunguska to crawl. Somebody taught theirs to sing.’

At the head of the table, in shadow, an old man laughed softly. It was the gentle, pleased laugh of a grandfather watching a child take its first steps.

‘And Stevansky?’ said the someone.

‘Stevansky has refused us twice,’ said the old man. ‘He will be made an example of. But not yet. Not while he is watching for it.’ A pause. ‘When it will hurt the most.’

‘And the angel?’

The old man watched the clip loop again. The hand. The light.

‘Everything that flies,’ he said, ‘has to come down somewhere. Find out where it lands.’

He leaned forward a little, into the light, and for a moment the black glass showed the reflection of a smile.

‘Whoever owns that machine owns the world,’ he said. ‘The only question is whether he has realised it yet.’

In the Nave beneath a chapel in Wytham Woods, at two in the morning, the VEDA core breathed frost behind its armoured glass, and the Pantheon stood quietly in its Cradle with four new blades in its wings.

Daily strategic projection. Probability of successful global hegemony, should the pilot so desire: ninety-nine point nine seven percent.

‘And pilot desire?’

Null.

‘Keep it null.’

A pause.

Noted. Pilot heart rate while reviewing the Esso footage for the fourth time: plus four beats per min—

‘Zero.’

Closing.