The city

An unregistered person: someone the MAD does not list. It describes a condition as much as a person — you become one when the MAD drops you. It was used as an insult, until people actually living that status reclaimed it. It becomes identity instead of just shame.

A myth. The city believes that somewhere in the Ministry sits a mastermind called the Architect, who sets all the numbers: how little you eat, what your death is worth, what water costs. When a number with no name on it hurts someone, they blame the Architect.

People went looking. They found no one. The numbers come out of automated scripts — entries close themselves, and no human signs anything. The mastermind does not exist; the city invented a person to blame for a machine. The Ministry's own Architect of the Unbroken is a job, held by a man, and is not who the story means.

A Ministry office, not the myth. It was first held by Elias Thorne — a man whose personal accounts funded the Ministry and who planned to have his own death filmed while plugged into the city's machinery. He did not write the numbers. The title just happens to share the name.

The city's vertical hierarchy: the higher you live, the higher your standing. The Spires and the Upper City are at the top, the undercity and the Deep Lines at the bottom, and people name the levels between by number — the Fifth Tier, the Ninth.

Transit, power and surveillance as one system: the thing that moves you, lights your block, and records that it did. Tunnel racers also use the word for the painted start grid at the Third Gate, where riders line up, and for the racers and onlookers gathered there.

You can hear it. Under most floors it keeps up a mechanical heartbeat, and the places where that sound stops are the ones people notice.

Going anywhere means riding it. The city is stacked, and everything between one tier and another — the rails, the tunnels, the junction gates — is the grid, and every junction runs a MAD scan on whoever passes. So people try to hack it, to move without being recorded. The Ministry's punishment turns that inside out: anyone flagged as a fiscal liability is purged from the grid, and every gate refuses them.

The event everything here is dated from, and it was not a disaster. The city was put into bankruptcy on purpose — clauses drafted in the final fiscal quarters before the blackout reclassified people and machines alike as infrastructure. The Ministry has treated humans as property ever since.

Street preachers walked the rain-slicked undercity, telling the desperate that the megacorps above were divine stewards of a celestial design. They held trance rites in the lower sectors, purging the "sickness" of rebellion from rioters in exchange for the corporations' resources. Cyrus Eames began that ministry, a chaplain to the boardrooms who came down to calm the rioters' souls.

The sermon became a state at the collapse. Elias Thorne signed the clauses that reclassified the city's people as MAD assets, took the deified seat of the Architect of the Unbroken, and funded the order from his own accounts. Klara Pavek, a shrine-tender from the salvage yards, made his legacy the foundation of a religious order and wrote the choreography for the Reading of the Quarter, in which the firms' quarterly reports are read aloud at the Ninth Tier main-gate as scripture.

The offices followed within days of each other: Ronal Vane's Liturgists of the MAD, who rule the districts by conditional rations; the Watch, which keeps the registers; the reclamation rotas, which claim the dead. What began as a chaplain's promise that suffering was holy is now rule by arithmetic.

Oryn Pavek began it alone. She caused the reactor meltdown that killed a technician, with no orders and no accomplices, then went down into the neon slums to teach street kids by night and named her cell the Kindling, sworn to the total destruction of the existing system. Its creed is that the Ministry's order is a structure, and a structure must be cut. The Kindling sabotaged the relay beneath Sector Four, the node that carried the Ministry's records up from the ruins, and locked the vent-seal behind it; it ordered the demolition of the city's deepest foundations, and the order has never been withdrawn; and it means to blow the new bulkhead at the deep sectors' junction before winter ends.

The turning point came at the Sector Four relay. The Kindling was moving its own people through the Deep Lines on the same tunnels the Exodus Network used to walk people out. Then the Kindling staged the demolition of the relay itself, a collapse meant to bring down the floor of the sector above and seal those tunnels. Its own demolition crew wanted no casualties and kept pushing the date. The leadership overruled them and moved the collapse two days earlier — not because the timing was better, but to make sure the people below did not get out. Oryn Pavek set the terminal clock to seal the ventilation shaft, while Enna Carrow was still down there, helping people get out. The relay held, but the housing around it fell. Nobody knows how many died. Enna Carrow survived, and Oryn Pavek declared her an enemy.

The node beneath Sector Four that synchronises the Ministry's ghost-books, its asset records, to the surface. It also powers every transport line south of the Third Junction, and it holds the sector up: if its anchor is destroyed under tension, seven housing levels shear, about four thousand registered people.

The Kindling tried to destroy the relay once. It went dark for about a season and then one day it just came back on. Nobody in the lower sector saw who fixed it. The housing around it fell in the same attack and was never rebuilt. About a dozen people live in the rubble, mostly old and slow.

The wall that seals off the deepest sectors. The old one was Ministry work, with stamped plates, posted orders and guards on rotation. Then the guards stopped coming, and a new, stronger wall stood in its place. Nobody knows who built it. It carries no crew name, and the lower-sector crews had nothing to do with it.

The Ministry Asset Database: the Ministry's register of people. Each person is an entry — an asset, with debts attached — and the entry is what the city consults when it decides what you get: food, a room, a door opening. Its deep copies were filed in racks at the MAD records center, a Ministry data center in the Upper City. The center has burned, and the copies in it are destroyed.

Nobody asks for papers any more; they scan you against the MAD — at a door, at a till, on patrol. Listed, you pass. Unlisted, you are a ghost, and passage is refused.

The body-read at a checkpoint, meant to catch smugglers but prone to false positives. The Ministry takes a raised temperature as a sign of something hidden, so a frightened smuggler and a man with a fever read the same, and the checkpoint does not tell them apart.

The Ministry doses its own couriers with a treatment that holds the immune system down. Wade Terrell has carried cargo through the checkpoints for years and takes the dose twice a week. The treatment wears off slower every season. He used to shake for an hour after a dose wore off; now it lasts half the evening.

The rumor in the tea dens is true: the courier dose is the Ministry's own cure for the neon grit. The vials say "immune modulator", and only a handful of insiders know what that really means. One man makes it, Osvin Trask, alone in a sealed lab off the Spire Sub-deck.

Geometric marks cut into the city's walls and pipes. Some are maps and others say which supports will still take weight.

The oldest route markers are in the Deep Lines, older than any faction now claiming those tunnels. Reading them is worth something: the city's best-known trade is selling safe passage, and a route-mark is the same knowledge cut into the wall, free to anyone who can read it.

That knowledge can be sold. A crew marks its passages in a sign-set of its own, and a broker who learns the signs can sell them on: whoever buys them walks the crew's passages. Cutting new signs over the old ones does not help, because the old sign ghosts through a fresh cut deep enough for a practised reader to make it out.

The Ministry does not censor route markers. It does not read them as writing. Anything unindexed is noise, and noise is dismissed without an argument; anything cut into a wall is damage, and damage gets repaired. When a repair crew carried off a marked beam, Keziah Montgomery memorised what was on it and cut the same message into the beam beside it.

Marks on the pipes get scraped. Along Line Gate road crews grind the tags off by hand on the night shift, and someone has paid crews to wipe a route-man's lines. Most crews no longer grind a route-mark: they have learned to tell a route-setter's mark from noise, and schedule their night shifts and cold-pipe shipments around a standing mark instead.

An alleged thinning in the city's shell, where the world outside can be seen through. The seam's believers hold that they are living inside a simulation, and the seam is where the proof would be.

It started with Winifred Underwood, who spent her final years destitute, building hardware to map what she called the hidden seams of reality — the glitches that would betray the simulation. She mentored local hackers, and with her health failing she handed the work on: her sensors, blueprints and maps went to Felicity Tamsin, her signal work to Jaden Varek-Kovacs. Others hunt in their own way: Octavia Everson tracked a recurring error in the central banking core that mirrors the constants of physics. Nobody has been able to prove the seam exists.

The Ministry's recovery of bodies and property from the dead and the condemned. The crews strip a room to the bare metal; what can be sold is sold, and everything personal is burned. Whatever should outlive a person has to be saved before the reclamation rotas arrive.

An industrial byproduct that passes for dust. The Ministry's purge-cycles shed it into the ventilation shafts; it drifts down to the lowest berths and settles in lungs, and then in skin. It causes persistent dry coughs, and in the end respiratory failure.

It weaves into the sub-dermal mesh of children's skin, gradually transforming biological tissue into a brittle, plastic-like substance. The city's word for this is integration, and it does not stop: those undergoing it lose mobility progressively and eventually become entirely immobile. In high concentrations it can leave a dying body stiffened into that same brittle, plastic-like state.

Until recently there was no cure. People used charcoal paste — crude, unrefined charcoal mixed with heavy, rendered fats — which can partially draw the grit out and keep the skin breathing for a few months; it does not stop the integration. Now the waterfront has a real medicine for it, moving by word of mouth under the name the bright dose.

The street name on the waterfront for the medicine that treats the neon grit — bright meaning well, breathing easy. It is passed by word among the dock crews at the night stools and the fish stalls: ask the crews, and they steer you to a healer they trust, no names asked on either side. Nobody says who makes it, and nobody asks.

It has since spread past the waterfront, carried sealed through the checkpoints to the bottom tiers. Not every vial is honest: watered doses go around too.

The Ministry has caught on, and now taxes the cure: its board passed a levy that makes the bright dose Ministry property. To make the tax look like a gift, the Ministry had the Liturgists preach the cure as the Ministry's mercy, and the Archivists, who keep the city's history, record it as a Ministry breakthrough.

People who mark the body as a record: a route, or a ward against the sensors. Skin is the one storage nobody can take from the living.

Iris Kovic taught the ward: skin-sigils, woven from hair and copper or burned straight into the skin, so the sector sensors cannot read the wearer. The children she sheltered were still small enough that the system did not track them; she was preparing them for the day it would.

The street style of the Broken. Their garments make the machine error out, so a person has to step in. Being noticed is the point, and the audience is a human being forced into the loop.

Reclamation swarms classify a person by silhouette and thermal signature, and an unlined garment reads as harvestable stock. The Broken strip the thermal lining out and replace it with the witness thread — the wearer's own hair braided round a copper core. The classifier reads a contradiction, hangs, and has to escalate to a human supervisor.

The movement took its name from the Ministry of the Unbroken Chain, so that the Ministry cannot state its own theology without conceding them.

The Unmaking's pattern: the wearer's own hair braided round a copper core, sewn into a seam or burned into the skin. A machine reading the body finds a contradiction it cannot resolve, and has to hand the decision to a person. The thread is the key feature of the Broken Look.

The cloth Eviane Ashoka stitches into panels for the lantern line, the tunnel racers named for the way it glows. The racers ride the unlit tunnels without lamps so the cameras cannot see them. Needless to say, it is a dangerous sport: riders who cannot see each other crash. The cloth soaks up the headlamps on the lit start line, and holds a faint glow for minutes after they go out, visible to other riders but not the cameras. It is worn as a panel at the collar, back or sleeve, in a colour the wearer chooses.

The lantern line trend has begun to spread beyond the racers. Couriers wear it in finger-width strips sewn flat, and on the docks a broth seller has sewn it along her cart's awning so the couriers can find her in the dark. The market argues about it: some stalls say the cloth must be wired, others ask its price. On the strip, colour worn openly draws attention, and a person in their own colour is read "as either money, madness, or a marker". Part of the draw is that the cloth reads clean to a checkpoint scan, so the wearer stands out to the people nearby and not to the surveillance, making it a small act of rebellion.

The line is growing. Riders who see the glow come out of the tunnels go to Eviane's stall at the strip's season market to be fitted, and new riders now line up at the Third Gate wearing it. Only about three pairs of hands on the strip can stitch the cloth without killing its colour, and hers are one. She has tried to write the method down and could not: it lives in the timing of the hands.

The city's bookkeeping binds every living person to its dead. At birth the Ministry assigns each child the unpaid accounts of a dead stranger — a ghost's debt, paid off for life.

The street's name for the Ministry's collection system. It never knocks. It takes what you owe out of your wages before they reach your hand, and when you die it collects the body. The Watch fines you. The Receiver owns you.

The Ministry's official currency: a stamped token with its denomination pressed in, paid as wages at the checkpoint paydesks and confirmed by a scanner at any desk. Every chit that crosses a desk leaves a trail of where it was spent, which is why the lower tiers keep a second currency.

Gray scrip is the black market currency of the lower tiers. Earned off the books and circulating hand-to-hand, it is simply stall-stamped paper or handwritten IOUs, entirely out of scanner reach unlike the official currency.

While technically an evasion of the Ministry's financial oversight, the authorities largely tolerate the gray scrip market. It acts as an economic safety valve: the Ministry knows that chits cannot easily buy bread in the lower tiers. A hand that cannot cash a tracked chit still has to eat, and a fed hand keeps hauling. So they treat it as a rounding error, letting the lower market keep two books—a clean one for the Ministry, and a real one for the streets.

Semi-private establishments where people sit and drink. You can find them on any tier: back-alley dens at the bottom, upper-level dens serving expensive jasmine at the top. Thick steam masks conversation from the city's noise, and the room becomes a sanctuary for anyone needing respite and discretion.

Tanner Corvus said: "You can drop into any one of those spots, keep your mouth shut, and nobody will ask for more than the price of a burner-tea. It's like a library of secrets where the books are all human, stacked in rows and waiting for someone to finally read them."

The dens are where people exchange information: a patrol diverted, a clearance at a node, the name of someone who would do the work. Rumor has it that the Ministry has already developed a cure for the neon grit and is secretly dosing its own. Lately the talk runs the other way too: the waterfront has a medicine of its own now, the bright dose.

A single room kept full of hot wet air, and the air is why you go. The city's recycled air tastes of metal and carries grit, and everyone's throat is raw from it. Steam cleans nothing. It only gives a scoured throat a few hours' ease.

Unlagged pipes drip condensation onto scarred laminate tables, and the staff keep the heat past comfort to cover the smell of the sewers below.

Steam and low light and a crowded room mean no faces. So things are left on purpose — a paper under a table, a chip under a discarded tray — for whoever takes the seat next.

Rooms where you pay to be put under and shown a simulated world. People come to escape, and to picture something beyond the towering monoliths — vivid light shows, a landscape of your own making, the sky. A host runs the session on salvaged neuro-interfaces, in dim velvet-lined quiet that smells of incense and stale synth-tobacco.

A session leaves a trail of what the sleeper was thinking, and the Ministry can read it. Some hosts, like Yvette Fournier, scrub the trail after a session and Balthazar Belinsky runs machines that never report.

Kreskar Orrick, who runs the rooms on the arcade strip, takes his sleepers "to places the surveillance could not follow". The Ministry couldn't read what his sleepers dreamed, so now it tracks who walks in: the checkpoint at his block counts everyone who passes after dark.

Not every parlor is counted like Kreskar's. Ministry inspectors walk their rounds past certain doors without stopping. Simon McCullough, an Upper City heir who would rather his family never learned what he dreams, found one of those. He keeps his name off the slip, so no record leads back to him.

A game involving two teams of seven, and a point scored by striking one of the structural pillars behind the other side's line. There is no official referee: the crowd rules on every point — a hit counts when the room agrees it landed. People still talk about the match that ended twelve to four against a corporate crew, at the old transit hub, a gutted station whose rusted ribs are the pillars.

The ball is traditionally made by garment-makers, who stitch it from hide and lead, working the metal into the seams so the weight sits balanced in a human palm. That is where the name comes from. A pressurized synthetic resin ball is the easier alternative, and plenty of people play with one.

High-stakes underground racing through the dark tunnels and the vent shafts, on scavenged engines and patchwork vehicles.

Two racers strip salvage boards down to what still holds charge and race to coax a working circuit out of the same pile of junk. The first circuit to light wins, and the loser usually blames his hands.

A dance that began in the sealed transit tunnels and has spread to about a thousand dancers. Ilias Panagiotou, a painter, helped build it out of tango, an old dance for two partners held chest to chest, one leading and one following. Tunnel dancing keeps the hold but sheds the lead, so nobody leads, and it takes its sharp turns from loom-ball feints and rides the wobble in the tunnels' weight sensors. The music is whatever the tunnel gives: the hum of the ventilation riser, and scrap metal dragged down the stairs for drums.

The Augment Houses buy dancers' motion, but this dance is unbuyable. Dancers call it something different in every tunnel, and the floor rotates from tunnel to tunnel, leaving each spot after two nights. Word of the next night's tunnel passes by mouth only, through a runner at a tea den or a plate painted fresh at the stairwells. The written step list is kept as trusted copies, never posted and never sold.

An indexing system used by the Archivists to maintain their records. The directory is broken into segments, each written in a cipher only its holder was taught to read. The reading passes to a successor, so the whole index exists as a chain. No raid takes more than a segment. A segment whose holder dies untaught is still on the shelf, and still shut.

It is the same shape as the song-chain, and it fails the same way: a line that breaks does not outlive the generation that knew it.

A bird learns its song from the bird before it, and that line of teaching is the chain. Break it and the song does not outlive the generation that knew it. Five birds are left, kept in a controlled-air chamber in the Old Archive. They have the throats but cannot sing.

The copy of the song survives in the pre-collapse acoustic transcriptions held in the Archive. Playing the recordings back is not enough — the birds need a teacher. So they use a resonator that mimics a biological feedback loop, a machine that replies to what the bird just did. The birds have begun answering one another in a primitive syntax of throat-clicks. The hope is for them to sing one day in the open air.

Lowell Tanabe, a young shrine-keeper, has been trying to teach them. He matched the birds' clicks to the old survey recordings, line by line. When he sings the note himself, the birds pick it up and carry it. But the chamber rents by the hour, and each session ends before the birds have learned the whole song.

Pre-collapse relics that store audio recordings. Wax cylinders are a mixture of metallic soaps and wax, and the acid in the city's air eats them; when one cracks it is gone, and nobody can make another. What is left is a dwindling stock with no resupply, and a collector's market has grown up around it.

Thaddeus Winthrop keeps a rack of wax cylinders in a soundproofed room and cleans them one at a time, and is hunting a smuggler sitting on a cache. Frederick Yarrow works the other end of the same problem, testing synthetic polymers for something that will hold a sound longer than wax does. The two men keeping the city's sound alive are trying to ruin each other.

400 grams of hydrolyzed mash a day: the Ministry's stated minimum for keeping a worker alive to the end of a shift. Not a nutrition standard, and the people eating it say so.

The Ministry's food for the grieving: a nutrient-dense, flavourless sludge issued to a household after a death, in place of the funeral meal it replaced. It leaves a coating on the tongue that never washes off. It is a sedative. It is delivered the same day, and keeps a household fed, occupied and slow in one room while automated surgical swarms take the neural hardware out of their dead in the next.

It is made from the hardware. The dead are taken to the reclamation vats and the marrow and the neural ports are stripped out. Ports that come out intact go up to the Spire labs, which pay on one condition — that nobody has wiped them, because an unwiped port still holds the shape of the mind that used it. The ports too far gone to sell are milled down and issued to the family.