Scizor rolled one wheel forward and chose the wrong chain first.
The cutter’s lower jaw opened toward the chain JJ had wrapped through the brake wheel. That chain held the case away from Ty by half an inch. If the jaw took it, the whole thing would swing into his shoulder and drag him with it.
"That is the stabilizing chain, Blue, not the load chain," JJ said. "Tell me the machine knows the difference between those chains."
Blue clung to the brake wheel with both feet planted on a spoke.
"The machine knows whatever dead workers taught it years ago," she said. "Right now it thinks every tight chain is a problem."
Ty pushed harder into the frozen side band.
The cold had gone past cloth. It gripped his shoulder through the coat and made the joint feel borrowed. His cheek pressed near the glass. Beyond it, his old hand rested against the inside, thin bones bent against restraint as if they were trying to remember a door.
Scizor rolled again, wheel grinding against its buried track.
The track beneath it cleared itself by force. Mineral crust cracked under the front wheel and scraped down into the pit. The pincer arms opened another handspan. The inner edges were flat and bright where old use had kept them clean.
"If it cuts that chain, I go with the case," Ty said. "That feels like something everyone should know quickly."
"I know, and I dislike how calm you sound," JJ said. "Blue, give me a better chain before I break the machine."
"If you break it, the case drops anyway," Blue said. "Please save violence for the useful part when it helps."
JJ shifted one foot toward the cutter and the chain answered.
Ty heard stone grind under her boot and felt the case answer. It moved into him with steady pressure, slow enough to be cruel. His trapped shoulder sank deeper into the frost. He bit down until his teeth hurt.
"JJ, your foot changed the weight from here," Ty said. "Move back toward the wall and keep the sword low."
She stopped with the blade half raised above her knee.
"I hate when you are right while freezing to evidence," JJ said.
She moved back one careful step toward the wall.
The case eased away from Ty by less than a finger. Less than enough. Enough to keep him upright.
Blue leaned from the brake wheel toward the old instruction panel. Her fingertips scraped over carved marks. Water ran over the stone and made half the grooves useless.
"There is a worker drawing here that shows Scizor biting under load after the brake arm fails," Blue said.
"Which load does it want from us today?" JJ asked.
"The lower chain first, then the guide chain, then the dead lock," Blue said. "The problem is our guide chain looks like lower chain because this room hates clear labels."
Ty turned his face from the glass enough to see the chain angles.
The lower chain ran beneath the case, half buried in frost. It had slack near the pit lip because the broken brake arm had stolen its pull. The guide chain stretched across the wheel, clean and tight, perfect bait for a stupid cutter.
Scizor reached for the perfect bait with its lower jaw.
"Can we make the right chain tighter before it bites?" Ty asked.
"Yes, if someone gives me two hands and a better childhood," Blue said. "I only have one of those available, and it is mostly dirty."
She hooked one elbow through the wheel and reached down for the lower chain.
Her fingers missed by inches over the black drop.
JJ looked from Blue to Ty, then to the cutter.
"I can hold the wheel while she drops lower," JJ said. "You tell me if the case tries to steal you."
"The case has been trying since we arrived here," Ty said. "I will report any improvement in its manners."
JJ planted her sword through the wheel spoke and put both hands on the rim. Blue slipped down until her boots hung over the pit side of the ledge. Her braid swung against wet stone.
Ty saw the fear hit her body before her face admitted it. Her shoulders tightened. Her knees pulled inward. She kept reaching anyway.
"Blue, your left boot has stone behind it," Ty said. "Press there before your right side drops into trouble."
"I know where my boot is, tall disaster," Blue said. "I am choosing to complain while using it."
Her left boot found the stone lip beneath the water.
The lower chain scraped under her fingers. She caught one link, lost it, caught another. The chain jerked as the case rocked. Blue slammed her forearm against the brake wheel and held on with a sound that stayed behind her teeth.
Scizor’s jaw closed around empty air near the guide chain.
It opened again and advanced along the track under frost.
"It is still coming for the wrong one," JJ said. "Blue, whatever you are doing needs to become finished."
"That is very fair feedback from someone currently above the pit," Blue said.
She pulled the lower chain toward her with both hands.
The chain dragged across stone by inches. Rust tore flakes from it. Frost broke away in small pieces and skipped into the drop. The slack straightened, then fought back through the case.
Ty felt the change immediately through his borrowed weight.
The pressure left his trapped shoulder for half a breath, then returned lower in his ribs. The case wanted to roll under the new line. He shoved himself down against the band, using the side of his chest where his shoulder had gone numb.
"Lower chain is waking up, and it is waking up angry from here," Ty said.
"Good, because angry means Scizor can see it soon enough," Blue said.
"Machines seeing anger is why we need fewer machines," JJ said.
Scizor paused with its jaws angled toward the lower line.
Its pincer arms lifted from the guide chain and turned toward the lower line. The change was small, but every body in the chamber answered. JJ pulled the sword free and shifted her grip. Blue kept the chain hugged to her chest. Ty kept his side pressed into the case until his breath came shallow.
The lower jaw dropped under the tightened chain.
Scizor bit down before anyone found another warning.
The whole chamber jolted hard through Ty’s bones and teeth.
The cutter’s jaw closed around the lower chain and locked there, but the machine carried more strength than balance. Its rear wheel lifted from the track. The guide chain snapped tight again. The case rolled hard toward Ty, and the frozen band took his coat with it.
Fabric tore across his shoulder where frost held tight.
Cold touched skin beneath the ripped coat and stayed.
Ty made a sound he would have preferred to keep private.
JJ moved toward him on instinct with her sword lowered.
"Stay with the wheel, JJ, or the case gets us both," Ty said. "I can lose a coat faster than we can lose the body."
"I am extremely close to disagreeing with your priorities," JJ said.
"Please disagree after the machine finishes chewing for me," Ty said.
Scizor’s jaw worked on the chain with three blunt bites. The first bite crushed rust. The second pulled the chain through its lower slot. The third seated the line against something inside the red housing.
The case stopped rolling into Ty as Scizor took weight.
His shoulder peeled from the frost by itself as the load shifted.
The skin came free badly under the torn coat.
Ty stumbled back, caught the wet wall, and dragged air into his chest. His coat sleeve hung torn from the shoulder. Blood spread under the cloth in a flat line where frost had taken skin with it.
JJ caught his arm before his knees gave the idea any serious thought.
"Your shoulder looks like the wall tried to eat you," she said. "Tell me if you are still standing by choice."
"Mostly by insult and some support from the wall," Ty said. "The wall deserves partial credit for keeping me upright today."
Blue climbed back over the brake wheel and nearly kicked JJ in the chin.
"Nobody congratulate anything yet while Scizor still has teeth," Blue said. "Scizor has the lower chain, but the guide chain still needs permission to stop pretending it is useful."
"What does permission look like in dead worker language?" JJ asked.
Blue wiped water from the panel with her sleeve and leaned close.
"The drawing shows a lever behind the left wheel," Blue said. "The lever probably frees the guide chain into Scizor’s upper jaw."
Scizor answered by dragging the lower chain one link inward.
The case moved away from the pit by stubborn inches.
It moved only a few inches, but those inches changed the whole room. The broken brake arm rose under released strain. Stone grit rolled from beneath the case. The old body inside shifted, hand sliding down the glass until the fingertips rested against the lower band.
Ty stared at those fingers through the wet glass.
They had been his once, or they had belonged to the shape that the world kept calling his. Here in the chamber, watching them slide without him, the difference mattered less than he wanted.
The case moved again and the hanging chains groaned.
"Ty, stop looking through the glass and look at me," JJ said. "Your face is doing the thing where you leave before your body follows."
He blinked and turned toward her with effort.
"I am here enough to be useful still," Ty said. "That is the current standard keeping me useful here."
"That is a terrible standard, accepted under protest," JJ said.
Blue dropped to her knees beside Scizor’s left wheel. The machine’s jaw held the lower chain while its front arms trembled against the load. The wheel housing had a narrow slot clogged with pale grit.
"The lever is behind this mess near the left wheel," Blue said. "I need a thin piece of metal and a promise that Scizor dislikes small fingers less than big ones."
JJ handed her a short knife from inside her boot.
"Use the knife before the finger promise becomes relevant," JJ said.
Blue took the knife and worked it into the slot.
The lever resisted. The whole housing shook under her hand. Scizor pulled the lower chain another link inward, and the case scraped away from the pit with a heavy drag. Ty’s old body rolled inside the glass, shoulder bone striking the side.
Ty felt the impact jump across into the wound.
The pain came late and wrong through his living shoulder.
He pressed one hand over the torn coat and stayed on his feet.
"The case is making him feel things through the old body," JJ said. "Blue, that sounds like a reason to hurry."
"I already used all my slow settings before breakfast," Blue said. "This is my hurry with knives and poor lighting."
She shoved the blade deeper until the handle shook.
The lever snapped down with a hard metal cough.
Scizor’s upper jaw opened with a hard clack and caught the guide chain before it could spring free. The wheel spun once under JJ’s hand. JJ swore under her breath, braced, and shoved back. The guide chain slid into the jaw slot with a grinding pull.
For the first time since they reached the brake chamber, the case held without Ty touching it.
Ty took one step away from the glass.
Nothing followed him except water slipping under his boots.
He took another step, and the case stayed in Scizor’s grip, suspended by chain, wheel, and the old cutter’s locked jaws. The pit waited below with all the patience in the world, but it had lost the case for now.
"That machine is ugly and useful, which makes it family today," JJ said.
"Please avoid adopting the cutter while its teeth are occupied," Blue said. "I have enough cousins with hinge problems in my family."
Ty leaned against the wall and let his good hand shake where JJ could see it. Hiding it would waste effort. She already knew.
"We still have to move the case out of the chamber," he said. "Holding it here only means I can bleed without multitasking."
"Bleeding without multitasking is genuine growth for you today," JJ said.
Blue looked over the top of Scizor’s housing.
"Scizor can walk the load along the track if the drive pins still work," she said. "The panel says manual feed from the service side, which is bad because service side means under the case."
"Of course service means under the death object," JJ said.
"Workers with pensions designed this badly on purpose," Blue said.
Ty shifted along the wall toward the service side.
JJ caught his sleeve before he reached the service side.
"You are not crawling under your stolen old body after losing shoulder skin," she said. "That sentence has enough problems without adding movement."
"I weigh the least badly against the case’s pull," Ty said. "It reacts when I get close, and that means I can feel shifts early."
"That argument is horrible because it contains a useful part," JJ said.
Blue stared at the service side and frowned.
The track passed behind Scizor into a shallow alcove filled with broken tools. Most of them had fused into one orange lump from years of damp and pressure. One cabinet remained sealed under the old grime. Its door had been wired shut with careful turns, each loop tied by hand rather than machine.
"Someone closed that cabinet after the room broke," Blue said. "Look at the wire. That was done by a person with time and fear."
Ty moved close enough to see without touching the case again.
The wire held a small brass tag near the knot. Dirt covered the stamped letters. Blue rubbed it clean with the heel of her palm while JJ kept one hand near Ty’s torn shoulder.
The name appeared under the grime in stamped brass as Marcus Vale.
Under the name, scratched in smaller letters by a shaking hand, someone had left a worker’s warning for whoever found the cutter alive. Feed Scizor the chain that hurts you least, then open my cabinet before you trust the next rail.
Blue read it twice with her mouth pressed tight.
"I think Marcus knew this machine better than the instructions," she said. "I also think he expected someone desperate to reach this exact bad choice."
Ty looked from the tag to the cabinet, then back to the case hanging in Scizor’s jaws.
"Then the next rail belongs to Marcus before it belongs to us," Ty said. "Open the cabinet carefully and assume the dead worker had better manners than the royal vault."