Six fifty in the morning, the roller door chewed its rails all the way up, and the bay's day began with that one dull bang.
The overnight jobs already stood in a column on the whiteboard: two patrol machines with transmission noise, one hydrant pump seeping hydraulic fluid, and at the bottom a sheet circled twice in red. Unit Fourteen. Cockpit badge-interlock recert. Four days grounded. The duty ledger said OFF in one blunt word. Shift after shift had pushed it back and forth; the name line at the bottom right stayed empty.
A transfer sheet was pinned above it: 00:40, wholesale market, shelving collapse, filed as stack load. Two hundred kilos of canned goods had rolled across an aisle; the night crew had cleared them in under an hour; no injuries. She read it once and dropped back to her own sheet. Other people's accidents were not today's work.
The foreman slapped the sheet on her tool cart and spent no words on it. His ballpoint had filled out the duty roster so often the strokes sat in layers; what he had to say he said in sign-off columns. The bay's rule was more honest than its people: whoever takes the sheet signs it, and signs for it until delivery day. The sheet walked into her pocket on four words in the remarks line: the wiring is hers.
In this bay, that line was a pass and a noose in one. Half the interlock harnesses on the floor went through her hands; the rest had been dressed to her sample. When a machine came in broken like this, nobody else could reach the root of it, and she couldn't drop the root either. The last sheet like this one had carried her instructor's name on the sign-off line. From this sheet on, the first line was hers.
She wheeled the cart toward Unit Fourteen, extraction fans loud today, one tube in the ceiling row flickering. Past the parts locker somebody behind her dropped their voice low: "Heard your floor singing again?"
A short laugh followed, then everyone went back to work. The line had run since her first day in the shop. She hadn't answered from day one.
On the wall calendar, the grid for the day after tomorrow held one word: drill. Blue pen, small. She looked at it over her coffee, and let the look go.
Unit Fourteen sat on the stand with its chest and right shoulder plates off, stacked in trays. The canopy stood open. The smell of coolant and old leather carried three meters. She climbed in and laid her tools out left of the seat in order of use: hex set, side cutters, meter, electrical tape. Last came the jumper she had cut herself. Copper core, cold-crimped ends, two fingers shorter than her forearm. The shop's test leads ran long and stiff and turned a wrist to nothing in this narrow a bay. This one was her own, and when it was done it went back into her chest pocket with her own things.
The ignition board sat second row, right hand. The badge interlock filled three pages of regulation: the ignition line bound to the identity badge. Badge present, authority present. The rank stamped into it could not be peeled off, and the authority stayed with the badge. The machine follows the badge, not the face. She had written that footnote for this interlock three years ago and filed no exceptions since. She could recite the test procedure too: secondary tag on, master open, warning posted, prove zero volts. Four steps, in order, before the jumper earned its turn.
The jumper was the main act of the day.
She lifted the badge sample line off the terminal block and bared two cores. One end of the jumper went into the sample terminal, the other onto the test point. Thumb flat, eyes on the main screen. The cockpit went quiet enough to hear the fan behind the terminal block spin down, a second or two, and stop.
The green lamps climbed one notch at a time.
The answer bell rang, small and clean.
One word on the screen: NORMAL.
The engine did not speak. She worked down the checklist. Chocks under the road wheels where they had been all day. The pitch lock in its red tag. The master open as it had been since morning. The secondary tag swung cold against her collarbone. All of it by the book. The canopy had opened a seam, and the world behind the seam was one she had known since she was six.
She drew the jumper off and wound it back around her wrist. Testing a door, and walking through one, were two different jobs. That was the first thing this trade had taught her: don't mix them up. She signed the test sheet. One line above her name sat the previous signer, a mechanic with decent hands. In this shop, signatures always stood ahead of a technician's. Some of those signers had examined her work for years and never once taken her on.
The recert's last item was history. She dragged the scan window back to yesterday's small hours; twenty-four hours of vibration traces unrolled. At the stretch past three a.m. the scroll wheel stopped. She ran it back and played it again. Still there.
The shape matched nothing. She called up the vehicle library and compared: the twin hump of a freight hauler, the narrow spike of an auger rig, the sawtooth of a tracked platform. None of them fit. The amplitude sat low, but the rhythm was too steady, like somebody keeping count, beat for beat. She magnified the trace, shrank it, stretched the axis, flattened it. The count held. Half the shop compressor's cycle, and no off-beat of a ventilation fan either. No match was a no match. The machine sat dead, master open, the recorder alive on its own small battery. If the count had a source, it came from the ground.
No match meant no report. Instrument difference turned up daily. In the tag column she put INSTRUMENT DIFFERENCE. In the due column, thirty days. In small text under remarks: same segment next month, no repeat, close the file. The regulation ended there. She kept one private copy of that segment anyway, a screenshot filed at the bottom of a folder of her own. Nothing in the regulation said she couldn't keep a copy. Not to overturn anything. Against the day somebody came asking. She closed the data screen and knocked two soft knuckles on its bezel, for nothing.
Before knock-off she fed the harness back under the seat into its channel, and halfway there her hand stopped. The outer length of insulation had opened up, cut clean, as if with scissors. Three segments, equal lengths, the cut lips turned outward; the cuts were fresh, the copper not yet dull. She lit the flashlight along the bottom of the cockpit: no companion, no crumbs, not one extra grain of grit. She shot the cut ends, and added a last line to the remarks: pest damage, electrical. Cut away and cleared. Channel latched, locked, ladder down.
That evening Cassius had booked a table at the restaurant by the old-quarter gate. She said overtime; he asked, what overtime, the good hauling days don't wait. He won. She was hungry anyway.
The place had years on it; the chalkboard menu outside had been wiped and rewritten time and again, the lettering never changed. His old table: back of the room, a view of the door and none of the kitchen. The same instinct as his trading: price the risk first, then the yield. He'd come early; she could tell. Her water glass already filled, his seat out of the draft.
Before the dishes arrived he filled her water glass to seven-tenths, not a drop spilled, then walked her through the daytime drinks party and dealt the day's people: a son taking over a freight agency. Names at dealing speed. She mm-hmmed along; those names moved like the market, today's cards gone by tomorrow.
The lot on the hauling lane came up with the second course.
"That lane in the old quarter. The day it has to clear out, and I say that day is coming, everything on that street that can move rolls out inside one night." The back of his dinner knife tapped the plate rim, his smile climbing with the sound. "And by then, whoever holds the hauling capacity sets the terms. Whoever signs the manifest locks the price."
"By block of hours?" she asked.
"By night. The whole night." A snap of his fingers. "Glad to hear it. You understood."
She ran the sentence through her head like a ledger entry. Per block of hours was easy. The night itself was never written into a contract; the night lived in the market, and the market he knew better than anyone. She didn't take the thread.
In these years, every sentence of his went through one round of conversion: what it was worth, what it had pledged. The conversion ran faster every year; it had startled her once. She slid the bread basket closer. "Slow down. Nobody's taking it off you."
He laughed and raised a hand for another basket of bread. When it came he tore most of the still-warm loaf into her plate and kept the heel for himself. The motion was natural and meant nothing by it, not the same man as the one pricing the haul, and she accepted it without taking it apart. The bread was still warm; she ate it slow. She had his whole pitch by heart without trying: three figures, two dates, one name. Which of the figures were true, the next month could say. The lamp behind his head laid his profile out even and bright, even the creases of his smile like something rehearsed. She thought of her own ceiling: lampless, filmed with an even layer of dust.
At the bill he threw his card down in one open-handed gesture. Outside the door his phone rang; he glanced at the screen and tipped his chin at her. "The one across the river can't wait. Go on ahead, the taxi goes on my account." He took the call on the third ring, and the voice that came out was three degrees warmer than the street. His warmth came off a dial. She had seen that clearly.
The taxi let her out at the mouth of the old quarter, the restaurant's oven smoke chasing her half a block before the night wind folded it back. She walked the old streets the rest of the way.
The old quarter at night was tidy about its quiet. The last produce stall handed its final crates to a loader arm that stacked them into an unmanned van at the curb. The freezer bays plugged themselves into their charging pylons, indicator lights blinking in half-beats, the street handing itself over to the night grid. A night patrol drone slid along the curb, its lamp band laying a thin brightness on the damp. The one place still serving turned its sign-screen down a notch. From the crossing it was two streets to the building her grandmother had left her. The porch steps had taken a new handrail once, and the fourth step still answered a foot with the same knock as ten years back.
The crossing lamps printed the wet flagstones in long white strips. Ten twenty. A mid-size bus had just come through, its tire sound dragging a long way. The walk signal was empty; she stepped off while the count still ran. At the base of the wall sat a thing. First look said plastic, blown in by the wind; two steps closer took it back; plastic never comes this matte.
She was seven steps past it when her feet stopped on their own. She stood two seconds, turned, walked back, crouched down.
A shell. Whole. Forearm length, lying face-down, six legs folded, every crease of every leg joint in place, the underside unbroken, as if somebody had shed a coat that came with its own frame and set it neatly down. The back carried one seam, crown to tail, its film still wet, holding a single line of light. Empty inside. The wall of it thin enough to pass the shadow of her fingers through.
She ran her eyes down the wall, top to bottom. No second shell. No body. Nothing flying off. A close sniff read old plaster and dust, nothing else. The size matched nothing she had ever handled. This city's biggest roach never grew long enough to argue lengths with her forearm. Down flat, the flashlight's beam ran along the ground: the little patch of moss pinned under the rim still lived. Whatever this was, it had landed no more than a night past. That judgment she could afford. Moisture talks. Inside the rim a few shallow scrape marks, as if it had hauled itself out by its own grip. A quick measure: half an inch past her forearm. The rim's thickness ran uneven, thick across the back and thin along the belly. When you look at a thing, find the scale first. Occupational disease. Tonight's scale had borrowed her arm.
She didn't touch it. Not touching was bay doctrine: unknown origin, open a file, leave the scene. The thing that moved in the end wasn't her hand, it was the phone. Focus. One shot of the face. One of the flank. Two clicks, and the pictures filed themselves into the WORK album. The one album she kept: work items, and things shaped like work items. When the phone came down she looked around once. The crossing lamps steady, the street clock correct. The world going on as though it had countersigned the whole thing. Her hand rose halfway, and the rules put it back.
By the time she stood the sweeper truck had turned in, brushes riding the curb with a hiss of grit. A man in a reflective vest stepped down, and one broom stroke carried the shell into the dustpan with a lifetime's ease. "One of those props," he said to his partner on the truck. "Looks real, too. Halloween's not even here and they're test-fitting already."
The partner laughed. The brush sound moved off down the next block. Where tonight's dustpan went wasn't her business; she had watched it for one second.
She watched the road empty back to a shine. Then she said, under her breath, "Next week." And walked.
The building wasn't in sight yet when the sound started under her soles. Low. Even. Rising through the ball of the foot, like somebody turning over very far down. She slowed and walked on. Nineteen years she had carried this sound and never handed it to a second person. Not out of fear. There was no column for it: say it out loud, and which drawer does it file in? Tonight it ran lighter than usual, like a different way of breathing. She lent it half a beat of her attention and walked on.
Home. The shower first.
The red jacket slid off her shoulders, the tank top peeled off over her head, the denim shorts to her ankles. Hot water hammered down, and her skin flushed a thin pink in the fog. The water ran down the line of her neck, over the collarbones, over her chest, and bent at the hip. Her hands followed the water the way she traced a wiring diagram, knowing every line of this better than any drawing. The steam blurred the mirror into frosted glass.
She closed her eyes. The sound under the floor came up through the tile, lighter still than it had been outside, like something walking very slowly, very far down. Then the water got loud, and there was nothing else.
The water stopped. Towel over her hair, the front-room lamp still on. Cassius wasn't back, probably at some card table across the river.
In bed she set the phone face down, then turned it over once more. The WORK album sat open on tonight's two shots: face, flank. Swipe back, and there was the torque-spec sheet for Unit Fourteen, the thirty-day recheck reminder, and further back the close-up of the cut from the cockpit floor, untagged. She blew the two shell shots up one by one: the freshness of the split, the wet of the seam, the one clean split from crown to tail. At full zoom, fine rings ran across the surface of the shell, ring pressing on ring, the way growth rings run in a tree. Growth rings do not set up house under a street wall and leave no body behind. She tagged both photos: face. Flank. In the remarks field she thought for a moment, then added a line: next week.
Before lights-out, the thought she had kept down all day came back up. She didn't drive it off. She let it grow into two sentences:
If it was real, it had molted.
