The instruction line stayed warm under Blue’s hand, reading Six motions home, seventh sword strike.
Ty kept his palm on the receiver tooth and felt the case pull backward through the metal. The sixth arm had taken every bit of wind the other five arms left behind. Its weighted end hovered above the right rail, shaking in small bites each time the last vent pushed.
JJ kept her sword up beside Rusuf’s blade.
"Give me the count before the arm starts choosing for us," she said.
"It already started choosing. We are currently arguing with the last bad option," Blue said.
The sixth arm twitched lower, and the case snapped backward a finger’s width before hitting the receiver lock. Ty’s bandaged hand struck the frame with it. Pain ran up through his wrist and into the bones of his forearm. He pressed harder before the case could jump again.
"Six is taking pull from the whole bridge," Ty said. "The strike has to slow the hinge, then Blue closes the tab."
Rusuf leaned closer without putting his feet past the marked strip. The wind shoved at his coat and flattened the loose edge against his leg. He watched the hinge rather than the weight.
"If I hit the hinge alone, the arm may bite into the rail," Rusuf said. "If JJ catches the weight, my cut can travel clean."
JJ shifted her grip on the sword before answering.
"Please avoid calling my part catching the weight again," she said. "That makes my hands feel smarter than they are."
"Your hands are smarter than half this bridge," Blue said.
"Lovely. The bridge can send a written apology after it stops trying to pull my arms off."
Ty listened to them because the rhythm helped him count.
The vent under the sixth arm pushed in four uneven breaths. Three short. One long. The arm dipped on the long breath, then lifted a little too high after. The tab by Blue’s hand rattled at the same time.
The plate wanted a strike after six motions, which meant timing mattered more than force.
"The long breath is the hinge overload, so Rusuf strikes as it starts rising after that breath," Ty said. "JJ holds the weight down through the bounce."
Blue slid the bit under the sixth tab and braced her shoulder against the service box.
"I can hold half pressure for one breath, maybe two," she said. "After that, the tab goes wherever the bridge wants."
"One breath is enough if everyone stops being heroic," Yun-Jin said from the rear rail.
Ty glanced back and saw Yun-Jin with one hand locked around the rear guide and the other pressed flat against the case frame. The wind kept dragging her sleeve into the teeth. She had wrapped the loose fabric around her wrist and pinned it under her grip.
Her face showed strain rather than fear, and that helped more than a speech.
The case jerked again, making Ty’s palm slip along the receiver tooth. His fingers caught a notch before the case could chew more distance out of the lock. His bandage tore against the metal, and cold ran into the open wrap.
JJ saw his hand and moved half a step.
"Stay with the strike, because the case moves if you help me," Ty said.
Her jaw worked, but she stayed while Rusuf lowered his blade until the flat hovered just above the hinge pin. He angled the edge away from the line that carried the case cable. JJ placed her sword under the weighted end, flat side up, knees bent enough to take the hit through her legs.
Blue watched Ty’s mouth while she waited for the count.
"Say it plain enough for worker hardware and tired people," she said.
Ty waited through three short breaths from the vent before the long breath started.
The sixth arm dipped and dragged the case backward hard enough to make the receiver tooth grind against his palm.
"Hold through the dip and keep the weight low," Ty said.
The arm reached the lowest point, and the hinge began to rise.
"Strike hinge now, and Blue closes on the bounce," Ty said.
Rusuf struck, and the sound cracked through the bridge like a tool breaking in a wall. His sword hit the hinge pin at an angle, cutting into rust, ice, and old worker metal. JJ lifted her flat blade into the weighted end at the same time and caught the arm before the bounce could slam down.
The force drove her heel back while Yun-Jin shoved against the case frame.
Ty’s hand trapped the receiver tooth in place while every joint in his wrist complained at once.
Blue drove the sixth tab down, and the tab fought her halfway.
"It is halfway buried and becoming personally offensive," Blue said.
"Finish it before the bridge develops another opinion," JJ said.
Blue shifted, put both hands on the bit, and used her shoulder against the handle. The tab dropped the last inch.
The sixth arm came home, sliding into the right housing rather than slamming. The hinge still kicked at the end, but Rusuf’s blade held its line and JJ’s sword kept the weighted end from biting the rail. Metal seated against metal with a hard final knock.
The last vent shut, and wind vanished from the bridge in pieces.
One burst from under the rail pushed Ty sideways. Another kicked frost from the receiver teeth. The third ran backward under the case and died near Yun-Jin’s boots.
Then the bridge held still, and nobody trusted it.
JJ kept her sword under the arm while Rusuf kept his blade at the hinge.
Blue kept both hands on the tab as if the box might spit it back out.
Ty kept his palm on the receiver tooth and counted to eight in his head because his hand had started shaking.
At eight, the service plate cooled and a narrow latch opened under the receiver.
"That feels less like victory and more like a drawer asking for trouble," JJ said.
"Worker hardware keeps its celebrations modest, mostly latches, bruises, and unpaid future maintenance," Blue said.
Yun-Jin took her hand from the case frame and flexed her fingers. Two of them moved late. She looked at them until they obeyed, then looked at the open latch under the receiver.
"The case shifted forward when the latch opened. Whatever sits below it carried load too," she said.
Ty eased his palm away from the tooth.
The skin under the bandage had split again. He turned his hand once, saw blood in the wrap, and closed his fist before JJ could get a better look.
She saw enough anyway, and her eyes went straight to the blood in the wrap.
"Your hand has started filing complaints without asking me first," she said.
"The hand can wait until the old body stops traveling," Ty said.
"That sentence has too much wrong packed into it for one hallway."
"Then we should leave the hallway while leaving is available."
Blue wiped both palms on her coat and crouched by the latch. She peered through the gap before touching it. The space below the receiver held a shallow service tray, its front edge jammed under a lip of black stone. The tray had been dragged partway open by the bridge settling.
Inside the tray sat three objects, starting with a cracked ceramic fuse. Beside it lay a coil of copper line wrapped in gray cloth, and beside the coil sat a short maintenance sword with half its guard missing.
Rusuf went still at the sight of the sword.
JJ noticed and lowered her own blade from under the arm.
"Tell me this bridge has many broken swords lying around," she said.
"This one was made to open housings, rather than fight people. The guard shape belongs to service crews," Rusuf said.
Blue reached toward it, then paused with her hand over the tray.
"Worker tray, worker blade, and a latch that needed a seventh strike," she said. "That sounds too neat for a place that nearly ate us."
Ty looked past the sword to the gray cloth wrapped around the copper line.
The cloth had been tied with a knot he recognized only because Yun-Jin made a small sound behind him. It was the kind of sound a person made when a memory hit the ribs before the mind caught up.
"Yun-Jin, you know the knot from somewhere," Ty said.
She stepped close, slow enough that nobody mistook it for reaching.
"Daemon tied tool cloth like that. He used two loops when one would hold, because he hated trusting other people’s hands," she said.
The bridge stayed quiet, which made the tray worse.
Blue shifted aside so Yun-Jin could see without touching anything. Rusuf kept his blade low and out of her way. JJ moved closer to Ty, close enough that her shoulder brushed his sleeve but far enough to leave him working space.
Yun-Jin crouched by the tray, studying the knot on the gray cloth. One loop had been pulled so hard that the fabric puckered around it. The second loop held a narrow strip of bone-white tag beneath the wrap.
Yun-Jin pointed with two fingers and kept them above the tag.
"He marked urgent caches under the second loop," she said. "If he expected friends, he left the strip loose. If he expected a thief, he tucked it under tension."
"This strip is under tension, and the cloth wants the tray," Ty said.
"Yes, because Daemon expected the wrong hands to pull first."
Blue glanced toward the receiver, then at the sealed sixth arm.
"So the bridge opened a thief cache for us after making us prove worker timing, bridge load, and sword control," she said. "That feels rude in a very educated way."
JJ studied the short maintenance sword beside the wrapped copper line.
"Maybe the thief was whoever came without doing the work," she said. "Maybe the bridge wanted hands that knew restraint before it let the tray out."
Ty wanted to believe that, but he trusted the case more than the thought. The old body inside had been moved through rooms built by people who expected failure, abuse, and shortcuts. Mercy here came with locks on it.
Yun-Jin slid one finger under the loose edge of the tag. The cloth tightened around the copper line as she lifted, and the tray made a small grinding sound.
Everyone froze while the sixth arm held, the receiver held, and the tray held too. One black stone lip shifted under its front edge.
"Do that again slowly, because the tray is under the stone as well as inside it," Ty said.
Yun-Jin eased the tag higher by a fraction.
The black lip lifted with it, and stone dust fell into the tray around the broken fuse.
Under the lip, something pale showed through the gap.
Ty leaned closer, then stopped before his shadow crossed the tray. He had seen too many rooms react to wanting.
The pale shape beneath the stone curved like bone.
JJ’s humor left her face when she saw the pale curve.
Blue took her hand away from the latch.
Rusuf looked from the maintenance sword to the stone lip, then back to Yun-Jin’s knot.
"Daemon left more than a tool cache, and that stone is covering part of a body," Rusuf said.
Yun-Jin held the tag without pulling further.
Her mouth tightened around words she had no wish to say.
Ty looked at the old body in the case, then at the pale curve under the stone. The bridge had carried one body forward and hidden another below the receiver. He felt the room arrange both facts against him.
"Read only the tag first. If the stone moves with it, we stop," he said.
Yun-Jin turned the strip enough for the ink to show.
The handwriting was cramped, angry, and human enough to make Ty’s hand tighten.
It gave Daemon’s name, a date Ty still lacked context for, and six plain words under the knot, ordering them to leave the body under the stone.