Marco's second descent hurt in places the first shift had not introduced properly.
His calves tightened when the elevator settled. Both shoulders objected when he lifted his work bag. Ray watched him step onto the Zone Zero platform and pointed at the first-aid post without asking.
“Sore,” Marco said. “Not injured.”
“You decide one of those. Clinic decides the other.”
The nurse made him squat, raise both arms, and describe the ache in his left knee. She wrote FIT—MONITOR on his shift slip.
Wes read it over Marco's shoulder. “Congratulations. You remain conditionally assembled.”
Their first assignment waited on the lower logistics board: collect two empty waste drums from Junction L-12, then bring a maintenance case to the cable crew near the red lift. The route closed by the slime trail yesterday had reopened on night shift.
Someone had drawn a green line through Ray's handwritten closure on the board. Beneath it, someone else had added SCREENED—NO CONTACT and an unreadable set of initials.
Ray checked the paper route update. “They close the bracket gap?”
The dispatcher turned his slate around. “Temporary mesh. Cable crew has the permanent plate.”
“The crew we're carrying the case to.”
“That's why the case is important.”
Ray looked at the green line again. Then he took the short spear from the clamp on his pack and carried it in his hand.
Nobody called the route safe.
They reached Junction L-12 behind Cart Forty-Six, which still pulled left.
The old mine plate, the plywood night-shift arrow, and the newer dungeon placard continued to disagree about what lay ahead. Blue route paint disappeared beneath mineral bloom and resumed beyond the junction. The clear slime residue was gone. White neutralizer dust marked the cable tray where it had hung.
Marco stopped at Ray's raised fist.
The gap sat behind a steel cable bracket at shoulder height. Maintenance had pushed wire mesh into it and fixed the visible edge with orange sealing compound. The patch looked solid until the ventilation current moved one corner.
Ray did not touch it. He read the inspection tag tied to the bracket.
“Says anchored,” Wes said.
“Says somebody checked the box beside anchored.”
Ray radioed the discrepancy. Static swallowed half the reply. The cable crew was approaching from the red lift. They wanted Ridgeway to hold position and keep the maintenance case clear of the wall.
Marco set the cart brake. The two empty drums were strapped upright behind the case. Nothing leaked. Nothing moved.
Salvage pulled faintly at his attention anyway.
Not toward the drums.
Something bright lay beneath the cable tray: curls of copper no longer than fingernail clippings, mixed with black fragments of insulating sheath. One curl still held a weak blue sheen from the charged line above it. They were nearly worthless as material. Salvage made the difference between old dust and fresh damage difficult to ignore.
“Ray.”
Ray followed Marco's gaze.
A soft scraping passed behind the bracket.
The mesh flexed outward.
“Back,” Ray said.
Wes reached for his radio. Marco released the cart brake, pulled the steering handle straight, and began backing toward the marked refuge route. The bad rear wheel fought him. He kept the load inside the blue line rather than turning for speed.
The handle found the same pocket against his hip it had fought him to discover yesterday. His feet shortened their backward steps before the crooked wheel could pull his shoulders around.
The orange seal tore away from the stone.
Wire mesh struck the floor.
The threshold rat came through behind it.
It was longer than the glassback from training and lower to the ground, with blunt gray plates covering its shoulders and a pale ridge around its mouth. The gap should not have fit its chest. The dungeon stone seemed to release it one joint at a time.
Ray struck the wall alarm.
Amber route lights changed to red. A klaxon sounded once, paused, then began repeating in pairs.
“L-12 contact,” Ray said into the radio. “Threshold rat. One escort, two support. Withdrawing west refuge.”
The rat did not charge him.
It ran beneath the cable tray, reversed at the fallen mesh, and snapped at the charged insulation. Blue light flashed across its teeth. Then it turned toward the cart.
The empty waste drums had been washed. They still smelled faintly of spoiled bluecap.
“Leave it,” Ray ordered.
Marco locked the brake and let go.
Every useful object on the cart belonged to somebody. The maintenance case probably cost more than his truck repair. He left all of it between the rat and the refuge and moved with Wes.
One drum shifted against its strap as the cart settled. Marco wanted to correct it. He kept moving.
Ray placed himself in the route behind them, spear low.
The rat feinted toward the cart wheel and changed direction without slowing. Ray's first thrust struck a shoulder plate and slid away. The animal hit the wall, rebounded, and came at the space beside his knee.
Ray stepped across its path. The spear shaft cracked against its jaw. When it bit the wood, he drove the butt into the floor and used the trapped angle to turn its head.
His next thrust went beneath the pale mouth ridge.
The rat kicked hard enough to move the spear in his hands. Ray held it away from his legs until the movement stopped.
“Keep going,” he said.
Marco and Wes reached the casualty refuge. Marco pulled the pressure door while Wes called their names and location over the refuge radio. Ray backed toward them without turning away from the gap.
The door remained open for him.
Two security escorts arrived from the red lift before he needed it.
The alarm continued for eleven minutes after the rat died.
One escort covered the broken gap while the other swept the cable channel. Ray counted Marco and Wes, checked them for blood, then made them count each other. The refuge door closed during the sweep. Its patched frame shuddered with each paired note of the klaxon.
Control asked over the refuge radio whether the contact was contained. Ray answered that one animal was dead and the route remained unsearched. The question came again from ADR security and once more from a contractor dispatcher using different language. Ray gave the same answer each time.
Through the small wired window, Marco could see the abandoned cart. It stood less than thirty feet away. The distance felt larger with the door sealed and smaller whenever something scraped behind the cable tray. Wes stopped opening his lunch bag after the second sound.
The refuge held air, water, and a better barrier than the corridor. It did not tell them what shared the wall around it.
No second animal appeared.
After the all-clear, a field handler photographed the kill where it lay. Under both escorts' cover, Ray opened beneath the jaw, removed a small scent sac and two intact mouth plates, and sealed them in a transport pouch. The work took less than two minutes. The contaminated carcass stayed on the stone for the burn crew.
The cable team finally arrived carrying a replacement plate larger than the maintenance case Marco had nearly wanted to save.
Their lead studied the torn orange compound. “Patch was fixed to the bracket.”
Ray pointed at the edge of the gap. “Bracket moved.”
“Sketch shows rock behind it.”
The missing mesh lay on the floor between them.
Nobody argued with it.
The route closed again. Ridgeway's drums remained where Marco had abandoned them until security cleared a cart crew to retrieve them. One strap had stretched. The case was undamaged.
In the break room, Ray placed the outdated maintenance sketch on the table.
“What warned you?” he asked.
“Salvage noticed the copper and sheath.”
“Did it tell you there was a rat?”
“No.”
“Did it tell you the wire was freshly damaged?”
Marco considered the pull he had felt. “It made the useful material stand out. I decided fresh.”
“Good. Skills answer the question they have, not the one you wish you'd asked.”
Wes opened his lunch bag. “Mine has yet to answer whether this sandwich remains food.”
Ray tapped the sketch. “Why did you leave the cart?”
“You told me to.”
“If I hadn't?”
Marco pictured the maintenance case, the loose drum, and the rat changing direction faster than Ray's spear.
“Because replacing the load costs less than blocking our route to the refuge.”
Ray folded the sketch along a line that passed through solid paper where the gap should have been.
“Less wrong,” he said.
The blue notice appeared as Marco reached for his water: Skill increased: Salvage Lv.1 → Lv.2.
He had not touched the rat. He had not helped Ray kill it. Salvage had not turned him into a fighter or shown him danger through a wall.
It had made three cents of damaged copper difficult to overlook.
On the folded sketch, that had been enough to find what was missing.