The wash pump had been running for less than ten minutes when the first tray started clicking.
Tarin heard it through the scrape of sorting hooks and the wet cough of the drain. Not one sharp sound. A hundred tiny ones, synchronized badly enough to raise the hair along his arms.
He stopped with a crate against his hip.
Across the lane, a worker lifting cards from the drying rack swore and dropped the lid he had been reaching for. The top card in the tray flickered at one corner. Then the next one did the same.
Mara looked up from the receiving ledger. “Hands off the rack.”
Nobody argued.
The blue Synod hold notice still hung above quarantine. Cinder lifted its head from the padded tray. Tarin did not go near it.
Another click came from under the wash table.
Then the floor grate moved.
Residue mites spilled through the slots in a dull gray stream, each one smaller than Tarin’s thumbnail. They looked almost harmless until they reached the first discarded sleeve. The paper-dark bodies climbed over one another, and the sleeve’s printed edge flashed as if somebody had struck a match behind it.
“Scrapmites,” one of the workers said.
“Residue mites,” Mara said. “Same problem. Clear the front rack. Good stock first. Nobody kneels near the grate.”
The yard snapped into motion.
Tarin set his crate down and went for the drying rack. The top tray held damaged utility stock, the middle a carrier lot awaiting review, and the bottom Quill stock cheap enough to matter because seven wages depended on it.
The clicking shifted.
Not toward the nearest tray.
Toward the top one.
Tarin saw the same thing a heartbeat later in the cards: the worst cracked housing flickered brighter than the rest, a thin white stutter along one exposed seam. The mites turned as a mass.
“Highest leak,” he said.
Mara was already dragging a steel lid toward the carrier tray. “Then move the other two.”
Two workers took the middle rack. Tarin and another lifted the bottom. They got six paces before the swarm split around the leg of the wash table and came faster.
There were too many.
Killing them one at a time would have been work for a bored child and a free afternoon. They did not have either. The front edge of the colony reached the red-tagged tray and vanished under the cracked cards. Three housings flickered at once.
“Rack three is going,” Tarin said.
“I can see that.” Mara pointed. “Carrier stock into receiving. Quill stock behind the sealed cage. Leave the red tags.”
Tarin looked at the tray she was abandoning.
There were salvageable pieces in it. Bent closures. Two heat shields. At least one intact edge strip he could have cleaned and sold with the right notation.
Proof hunger made the value jump at him before the danger did. Yesterday he had signed away unsupervised access to the first authored thing his class had made. Today half the yard was watching him stand beside another problem made of discarded cards.
He could save that tray.
Mara caught his look. “No.”
“I didn’t say anything.”
“You put your hand on the rack.”
Tarin removed it.
One of the workers laughed once as he backed toward receiving. “He argues through his fingers now.”
“Cheaper than through his mouth,” Mara said.
The joke vanished when the carrier tray clicked.
Tarin turned.
A second bright seam pulsed near the bottom of the stack they had moved. Not as strong as the red-tagged tray, but enough. The colony at the grate shivered, and part of it peeled away from the first feed.
If they simply carried leaking stock deeper into the yard, the mites would follow the leaks. Quill would be choosing which room to infest.
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“Smoke them,” Tarin said.
Mara’s eyes went to the solvent cabinet less than three paces away.
“No.”
He saw the mistake immediately. “Right.”
“Excellent. Continue having realizations before we burn down my license.”
Dry heat, then. Sealed container. Stronger residue source.
The options arranged themselves because they were physical, not because the System handed him an answer. The old drying cabinet beside wash table two was steel-lined and empty. Its heater had been disconnected from automatic cycling after the thermostat started sticking, but the manual plate still worked. The condemned-card room held things Mara had already priced at less than their contamination cost.
He could not spend any of them without her.
“The brown-cloth bundle from condemned storage,” he said. “Last week’s river-damp lot. It was already marked for destruction.”
Mara did not ask how he remembered. “Carrier claim?”
“Closed. Quill write-off.”
“Provenance?”
“Logged.”
“Value?”
“Less than the three trays we’re moving.”
She pulled the condemned-room key from her belt and threw it to him. “One bundle. Not the whole shelf.”
That was permission, not ownership. Tarin caught the key and ran.
He was back in under a minute with the cloth bundle inside a shallow steel pan. The cloth smelled of river mud and old ozone even through the wrapping. When he brought it into the wash lane, the nearest mites changed direction so sharply that the moving gray line bent.
“Good,” Mara said. “Where?”
Tarin studied the cabinet, the floor grate, the exposed racks, the path to receiving. Twelve paces from the strongest cluster. No solvent between. Steel floor strip beneath it.
“Cabinet.”
“Do it.”
They did not have time for anything elegant.
Tarin slid the pan into the bottom of the drying cabinet and left the door open a handspan. Another worker used two clean steel lids to block the shortest route toward the carrier rack, not trapping the mites so much as making the contaminated path the easiest route. Mara sent everyone else behind the receiving line and ordered the wash pump cut.
The sudden quiet made the synchronized clicking louder.
The colony moved.
Gray bodies poured off the ruined red-tag tray, across the wet floor, and toward the open cabinet. The strongest leaking card in the abandoned tray flickered once, twice, then dimmed under the weight of them leaving it.
Tarin stayed beside the cabinet door.
“Back,” Mara said.
“Not yet.”
“Tarin.”
“If I close now, half the colony stays outside.”
“You are not a doorstop.”
He shifted behind the steel panel instead of arguing. It gave him something between his legs and the skittering line.
The mites reached the pan. They climbed the brown cloth in a moving shell. More followed, drawn through the narrow opening. Tarin watched the floor rather than the bundle. One stream. Then another. A scattered third cluster hesitated near the carrier rack, and his stomach dropped.
A corner of the carrier tray had started to flicker again.
“Leak’s stronger there,” he said.
Mara saw it. “We lose the bait if you move it.”
“We lose the carrier lot if we don’t.”
She made the decision in less than a second. “Bring the cracked card. Not the tray.”
The worker nearest receiving froze. “It’s already exposed.”
“I’ll take it,” Tarin said.
Mara’s stare could have held a door shut. “Gloves.”
He pulled on the thick salvage gloves from the wash hook and lifted the flickering card by its least-damaged edge. Mites skittered toward him from the floor. Running with a cracked active-pattern housing was how people turned a salvage problem into a hospital problem, so he planted his feet instead.
The card trembled in his grip. Not alive. Not Cinder. Just damaged material leaking hard enough to smell like metal rain.
He walked it toward the cabinet.
The hesitant cluster followed.
One mite struck his boot. Another climbed the rubber and dropped when he kicked against the clean steel strip. The line behind him thickened. Tarin kept going until the cabinet was between him and the open yard.
“Now,” Mara said.
He set the cracked card on the pan beside the condemned cloth and slammed the cabinet door.
Mara threw the latch.
The steel box rattled.
For three seconds nobody moved.
Then the clicking became a furious dry hiss from inside the cabinet.
Tarin reached for the manual heater plate.
Mara caught his wrist.
“Temperature?”
He looked at the old dial. “Low first.”
“Correct answer.” She released him.
He turned the plate just far enough to bring the cabinet warm without scorching the paper stock inside. Dry heat pushed through the metal. The rattling rose, scattered, then began to thin.
No one cheered.
There was still a yard to save.
For the next quarter hour, they worked the remaining edges. Mara kept people out of the wash lane while Tarin checked under racks and beneath the grate lip. Two workers sealed exposed damaged stock in metal carriers. A third swept dead stragglers into a contamination tin, then stopped when Mara told him not to mix them with wet solvent waste.
The red-tag tray was ruined beyond useful recovery. The carrier lot was not.
Neither was the lower Quill rack. Mara made them count it anyway. One cracked carrier card had lost enough edge stability to earn a fresh orange damage tag, but the sleeve was still intact and the provenance strip still legible. The lower Quill rack had mite scoring on two housings and no visible pattern loss. The condemned brown-cloth bundle was gone as an asset the moment they had turned it into bait, whether or not anything useful could later be scraped out of the cabinet.
That mattered more to Mara than whether the floor looked clean. She sent one worker to notify the afternoon carrier that intake would be twenty minutes late, another to move the sealed stock to the dry cage, and a third to chalk a contamination box around the grate. Nobody had been bitten. Nobody had dropped a client card. Seven people had lost part of a shift to a nuisance small enough to hide under a fingernail.
When the cabinet finally went quiet, Mara waited another five minutes before letting anyone near the latch.
“You opening it?” Tarin asked.
“No.”
“Good.”
She looked at him.
He lifted both hands. “I can learn.”
“Documented miracle.”
The System chose then to make itself relevant.
[REGISTRY // ADVANCEMENT] Residue Mite Swarm — objective-preserving containment verified Advancement XP: +30 Level: 1 | XP: 30/100
Thirty.
Tarin read it twice.
The number was smaller than the amount still missing and larger than anything he had earned yesterday. It did not make the blue Synod notice disappear. It did not put Cinder in his pocket. It did not make the ruined tray un-ruined.
Mara was already writing the loss into the ledger.
“Tell me that face means the System paid my carrier penalty,” she said.
“No.”
“Then get the clean lids back on rack four.”
Tarin looked once toward the quarantine cord. Cinder had settled again, head down on the old cloth. Nothing about the swarm had changed the terms on the board beside it.
He had spent no Charge. The old Strain from the fusion still sat at thirteen, inconvenient and unchanged. The only new number he owned was thirty out of a hundred.
He picked up the clean lids.
Behind him, the wash pump stayed off while Mara reassigned the lane. In receiving, somebody restarted the cart that had been abandoned when the clicking began.