The first slag rat hit Tarin's boot hard enough to make him think a loose bolt had bounced off the rail.
He looked down and saw it scramble away between Harlan's ankles, naked tail whipping, claws skittering for purchase on wet stone. Then three more shot after it. Then six. Then enough that the pattern stopped being a surprise and became a warning.
"Hold," Daska said.
The crew bunched around the brace cart.
Rats were supposed to haunt the edges of work, not flee through the middle of it. These were coming out of drain seams, rubble pockets, old bolt holes at wall level, all of them running the wrong way with the flat, stupid urgency of creatures that knew they were low on the food chain and wanted no part of the next decision being made above them.
One launched itself off the wall and smacked into Kest's shin. He bit off a yelp so hard Tarin heard his teeth click. Another darted through burning lamp reflection on the wet rail and vanished into the gallery behind them without slowing once. Even the ugly little scavengers knew what direction survival had chosen.
Pell watched one ricochet off a cart wheel and vanish under the rail behind them. "That's charming."
Tarin stared into the dark ahead. The scaffold throat there had gone too quiet again.
Not silent. Underground silence did not exist unless everything had already died. But the ordinary route noises had lost their shape. No hanging chain chatter. No muttered work voices carrying back. No distant wagon grind from the next junction. Just the thin drip of water and seven people trying not to sound alarmed before somebody with authority made them pay for it.
Krail appeared out of the dimness behind them with two secondary hands and one quarter runner, clearly irritated by having to approach the problem with his own boots.
"Why are we stopped?" he snapped.
Daska pointed at the rats still pouring past.
Krail looked, and Tarin saw the exact moment recognition arrived and got replaced by offense. Men like Krail hated physical proof. Paper could be argued with. Rats in your boots were harder to ignore.
"They're vermin," he said.
"They're leaving," Daska replied.
"Then let them."
Pell snorted.
Tarin said, before sense could stop him, "Something pushed them."
Krail rounded on him. "Did I ask the debt contingent what it thought?"
"You asked why we stopped."
"You stop when I say stop."
"Then say it faster."
That earned him a full look, cold and mean and official. Tarin had seen Krail make examples of men for less when the lane gave him room to enjoy it. Here, with bad dark ahead and a whole crew watching him spot danger Krail wanted to wave away, the foreman had to choose between pride and schedule.
He chose schedule.
"Move the brace," he said. "Whatever's ahead would have struck already if it meant to. Delay gets written as loss."
Pell gave a short laugh. "There's wisdom for the wall."
Krail ignored him. "Renn."
Daska stepped in front of the cart without making it look like defiance. "Tight line first."
"I gave an order."
"And if the brace tips in the throat, you'll have a worse report to clean."
Krail's jaw worked. He wanted her wrong and alive enough to punish later. The route, annoyingly, kept insisting she was right.
"Move it," he said at last.
Daska did not waste another word on him.
"Vale, front left. Harlan, right corner. Sell and Jori on rear hold. Pell, light and watch high. Kest, second lamp higher than your own fear. Namin, stay off the inside wall."
"Why?" Namin asked.
"Because if something comes off that scaffold, I don't want two bodies stacked where one will do."
That settled the question.
They rolled the brace cart forward.
Tarin kept one hand on the side strut and the other close to the hammer at his belt. The cart wheels clicked over the rail seam with ugly certainty. Sweat had started up again under his shirt despite the cold. He could feel it on the bandage around his left palm. Every few steps he looked up into the scaffold levels, then back to the floor, then ahead again. Too many angles. Too many runs of shadow between iron braces and wet stone.
"Lights up," Daska said.
Kest lifted his lamp higher. Pell did the same.
The glow crawled over hanging chains, rust-dark platforms, and guide iron bolted into walls that wanted to crack away from it.
Nothing moved.
That was worse than movement.
The sound came first.
Not a roar. Not anything so generous.
A hard, fast scrape above them. Claws or hooks skittering over metal. Weight committing all at once.
"Down!" Pell shouted.
The hookclaw fell out of the dark.
It hit the top of the brace load in a blast of splinters and rust. Lean body. Too many joints where joints should not have been. Forelimbs ending in curved hooks thick as a man's wrist. Its head was narrow and ugly, mouth too wide for honest bone, eyes pale and lidless in the lamp glare. One claw punched through the timber strut. The other slashed for Harlan's face.
Harlan jerked back on instinct and took the strike across his shoulder instead. Cloth tore. Blood slapped the cart frame.
Everything went to pieces in the usual underground way, fast and cramped and badly lit.
The cart tipped toward Tarin.
He braced his shoulder into it before the load could dump them all into the rail. Not courage. Reflex. Years on Ashlift taught a body what falling weight meant before the mind had time to make a philosophy of it.
The hookclaw shrieked and scrambled up the brace stack, trying to find room to kill from. Daska came in from the side and hammered the creature across the neck joint with a pry bar. Pell struck low at one hind limb. Sell rammed the butt of her salvage hook into its ribs. The thing moved too quickly for any of it to count as a clean hit. It skittered, hissed, snapped at the light, and lashed one hooked limb across the top of the cart hard enough to tear wood like wet bark.
"Keep the load upright!" Daska shouted.
Tarin dug in harder, boots sliding on grit.
Behind him somebody screamed. Kest, maybe. Or one of Krail's secondary hands. Sound had no time to keep its names straight.
A second scrape flashed from the scaffold above.
More than one.
"Back the cart!" Daska shouted. "Slow, slow, don't give it the side."
They started retreating by inches.
That was the filthy truth of route combat. Not grand charges. Not duels. Men trying to move backward without dying while a load decided whether to kill them faster than the monsters did.
The first hookclaw leaped.
Tarin thought it was coming for his throat.
Instead it caught one of the overhead chain runs with both forehooks and swung clear of the cart.
For one stupid blink, relief nearly got him.
Then the chain boomed under the added weight.
That wasn't a hauling line. Not only. It fed tension through the support section. You could hear it in the way the sound traveled into the wall and came back wrong.
"Gods," Pell said.
The creature hit the chain again, maybe trying to climb, maybe just obeying the savage arithmetic in its own body. Either way the link near the collar screamed against the slot housing.
Stone dust sifted down.
"Move!" Krail shouted from behind them, finally alarmed enough to sound human. "Move the brace!"
No one listened to the wording of it. Only the urgency.
The second hookclaw came out lower and faster than the first. It shot from behind a scaffold brace and struck Jori square in the chest. The big man went back into the wall with a sound Tarin would remember later and hate. His lamp flew from his hand, shattered on the rail bed, and oil flared blue-white before settling into a mean orange burn.
Smoke jumped.
The creature clung to Jori with all four limbs, mouth working for the throat.
Daska shouted his name.
Jori managed half a word and drove a fist into its head.
Sell went in from the side.
Tarin did not think. He snatched the salvage hook from where it bounced against the cart, stepped into the slick, and slammed the metal upward into the second creature's flank with everything his shoulders had.
The hook bit.
The thing whipped around on him so fast he felt the rush of its movement before he understood the turn. The hook tore free. Black blood sprayed across his sleeve.
Then Pell buried the pry bar in the creature's skull and dropped it twitching between the rails.
The smell that came off it was old meat left in machinery.
Jori slid down the wall, hand clamped to his throat. Blood pumped between his fingers in ugly, practical bursts.
Kest froze.
Daska shoved the young lamp bearer hard enough to send him stumbling back into sense. "Light on Jori!"
Harlan, one arm hanging useless and wet, got his good shoulder under the cart again.
"Still think they're vermin?" Pell snarled over his shoulder.
Krail's face had changed. Tarin saw it in the lamp flicker. Not guilt. Men like Krail did not turn guilty that fast. Calculation under stress. Schedule dissolving. Report language rearranging itself in real time.
The first hookclaw was still on the overhead chain.
Still hitting it.
Maybe on purpose. Maybe because pain and movement had narrowed its mind to the single bright idea of leverage. Either way, the line was carrying weight it had no room left to carry.
The chain shrieked again.
One link twisted visibly near the collar slot.
The sound turned Tarin's mouth dry. He knew that note. Everybody who hauled in Ashlift knew it. Not the sound of iron working under honest strain. The sound of it being asked to remember strength it had already spent.
Daska looked up once and made her choice. "Leave the brace if it stalls. We take the line out."
Krail heard and reacted like a man seeing theft. "No. The brace goes. Do you hear me? The brace goes."
Tarin heard it too clearly.
He saw Daska hear it.
And in that second he understood what kind of memory this day was going to become for anybody who survived it.
Daska's face did not change much. That was the frightening part. She already knew what Krail was.
"Brace stays with the crew if it can," she said. "Crew first if it can't. Jori, breathe through it. Sell, get under him. Vale, Harlan, pull."
That was the only reason the retreat did not become a full stampede.
They hauled the cart backward while Sell dragged Jori by the arm and belt, the big man trying and failing to keep his own boots under him. Kest held the lamp so high his whole arm shook. Namin had gone pale enough to look carved, but he stayed where Daska put him and kept clear of the wall.
One of Krail's secondary hands tried to edge around the cart and run for the rear line.
Pell caught him by the strap and snarled, "You break the lane, you kill us all."
The man stopped because survival had more authority in it than Krail did.
Behind them, the quarter runner started babbling route numbers in no order that helped anybody. Krail slapped him silent without even looking back. Tarin saw it and hated him with a clarity he had not had room for before. Not in the broad labor way. Personally. Cleanly. The sort a man could store for later if later happened.
For three steps after that, the retreat almost resembled work again. Cart dragging true enough to move. Sell and Jori both upright. Kest holding the lamp where told. Pell covering the high angles. Tarin pushing from the side and feeling, stupidly, that if they could just buy one more stretch of rail the route might settle for blood already paid.
Then the branch answered with another sharp report from inside the wall, like a buried beam splitting along old weakness.
The sound killed that hope before the next breath.
No route ever turned kind because a man wanted it to.
Ashlift had taught him that young.
Stone taught it harder.
And it kept teaching.
Still.
Then the chain gave a little more.
Not full failure. Worse, in a way. Half-failure. The kind that let men see the future coming without enough time to get out of it.
The twisted link tore partway through and whipped sideways with a crack that lit sparks off the wall. The hookclaw on it lost hold, dropped, and vanished under the scaffold in a shriek of scraping limbs. Dust burst from the ceiling slot. The chain collar above shifted in its housing with a heavy, stomach-deep thud.
The whole gallery seemed to feel it.
Stone answered.
First in tiny sounds. Pings. Ticks. Grit patter. The language of strain waking up.
Then in one long groan that rolled down the wall and into the floor plates under Tarin's boots.
Pell looked up and said, very quietly, "We're done."
Krail finally found terror enough to match the situation. "Move! Move!"
Everybody was already moving.
The problem was that the gallery had begun to choose for itself.
Dust came down in sheets now. One scaffold leg kicked half an inch sideways with a grinding protest that Tarin felt through the cart frame. Somewhere behind the first line, a cart rolled free and crashed into something with enough force to start another chorus of shouts. The hookclaw under the scaffold was still alive. He heard it skittering through the iron underwork, circling for another opening.
Jori coughed blood over his chin and still tried to plant his feet. Sell cursed him and dragged harder. Harlan's wound had soaked half his sleeve and was making the cart pull crooked because his right arm kept failing an inch lower every other step. Pell had blood on one temple from somewhere Tarin had not seen happen. None of them looked like men in a story about brave lower-route workers. They looked like what work actually made when it met teeth.
Jori stumbled and nearly took Sell down with him.
Tarin shifted to help without being told.
That was the mistake the route had been waiting for.
Not stupidity. Responsibility.
He let go of the cart with one hand to catch Jori's arm just as the floor under the inside rail jumped.
The crack that followed sounded like a giant setting its teeth.
The brace cart slammed crooked.
The scaffold above lurched.
And every man in the branch understood, in the same bright, useless instant, that the monsters might not even get the kill credit.