The answer came again, deeper this time, and the black water shivered around the posts.
Rennic lifted his hand. The nearest figure in the white coat struck a flint against the iron gate. A blue spark ran along a wire stretched between the posts. It vanished beneath the water.
Mara smelled wet copper, lamp oil, and the bitter mineral tang of quicklime. The bridge was not gone. It lay below the flood, its timbers drowned and its iron braces still carrying a current.
"Do not move," she said.
No one did. Even the horses seemed to understand the order. Teren sat crooked in his saddle, one hand pressed against the bandage beneath his coat. Blood had darkened the cloth at his side. Ivo held the lead rein of Teren's horse and watched the far bank with his knife already in his hand.
"That was not my intention," Rennic said.
"Your intentions are a weak substitute for insulation."
The second white-coated figure reached into a satchel. Rennic drew his pistol.
"Put it down," he said.
The figure stopped.
Mara looked from the drowned posts to the lanterns on the far bank. The lights were too evenly spaced. Not a camp. A signal line. The three people wore long coats sealed at the wrists and throats, each marked at the breast with the faded black square of the Royal Office.
Pell's office had found them.
Or they had been waiting here before the office knew where to look.
"Rennic," she said. "What is under the water?"
"An old toll bridge."
"That is wood. What is the rest?"
He glanced at her. His face had altered since the glassworks fire. The left side was smooth and pale, the skin drawn tight from cheek to jaw. She remembered that cheek covered in soot, his hand lifting a crucible from the furnace while she stood behind the mixing table, seventeen and furious because he had called her proportions childish.
"A Crown assay lock," he said. "It closes the road when the river rises."
"It is not a road lock. It is a circuit."
"It has been both."
The ground knocked beneath them again.
This time the horses broke. Teren's mount reared, and Ivo caught the bridle with both hands. Mara's mare lurched sideways. She seized the pommel, felt the saddle roll under her, and heard the ugly snap of something giving way beneath the surface.
The nearest white-coated figure shouted, "Open the gate!"
"No," Mara said.
She swung down before the mare could throw her. Mud took her boots to the ankle. The old road was not mud beneath the flood but a skin of peat over stone. She could feel the mechanism through it: a regular tremor, the stored force of a counterweight drawing toward release.
"The lock is primed," she said. "If the gate opens, the bridge rises."
"That is the use of a lock," Pell said from behind them.
His voice arrived before he did. The Royal Office party came through the trees in a line of black coats and wet horses. Pell rode at the center, hatless, his silver hair plastered to his forehead. Behind him, two men carried a long case between them.
Teren turned his horse to face them. The movement cost him. His shoulder dipped, and his gloved hand tightened on the reins until the leather creaked.
"Inspector," he said. "You are late."
"I have been delayed by the destruction of Crown property and the unauthorized removal of protected persons."
"Then your evening has been difficult."
Pell's gaze passed over him and settled on Mara. "Mrs. Rusk. Come away from the apparatus."
The title struck her as if he had thrown a stone. She crouched in the road and pressed two fingers into the peat. A narrow iron bar ran beneath the surface, vibrating against the bone of her hand.
"Those people on the far bank," she said. "Who are they?"
Pell's expression remained mild. "Witnesses under Office protection."
One of the white-coated figures laughed. It was a young woman, Mara saw now, with a red scarf tied beneath her chin. "Protection? Is that what the order said?"
The woman held up a folded packet. The paper was oil-darkened and sealed with red wax.
Pell went still.
Mara saw it. The smallest failure in his face. Not surprise. Recognition.
The young woman tore the packet open and read over the water.
"By direction of the Royal Office of Bounds and Assay, persons collected from Greyweald settlements are to remain at the Lower Toll compound until their labor debts are discharged. No family removal. No outside correspondence. No claim of noble protection shall be recognized."
Rain ticked against the paper.
Teren looked at Pell. "Labor debts?"
Pell's mouth tightened. "A provisional document."
"It bears your seal," Mara said.
"My seal is frequently used in matters beyond my direct administration."
"That is a question-shaped lie."
Ivo spat into the flood. "You told us they were traitors."
The white-coated woman lowered the paper. "They are charcoal burners, resin cutters, ferriers, and two glassmakers. Their sons were taken to the salt sheds. Their daughters were kept to sort the ore. Anyone who tried to leave was charged for the guards, the food, the chain, and the room they slept in."
Rennic's pistol remained pointed at her, but his finger had moved away from the trigger.
Mara looked at the three figures, then beyond them to the lanterns. There were more shapes in the dark. Men and women crowded behind the gate, faces pale in the rain. Not a witness party. A settlement stripped of its road.
She knew the smell of the salt sheds. Every chemist did. Nitre, damp straw, old urine, wood ash. A place that could produce blasting salts cheaply if no one counted the cost in lungs and hands.
"How many?" she asked.
"Forty-three when we opened the holding room," said the woman. "Thirty-eight now. Five died on the road."
No one spoke for several breaths.
Then Pell said, "You have been given a distorted account by persons attempting to evade lawful custody."
"Lawful custody does not charge a prisoner for the chain," Teren said.
His voice was quiet. The elaborate edges had gone from it.
Pell looked toward him. "Lord Rusk, you are injured and not in possession of the relevant documents."
"I am in possession of ears."
Mara should have watched Pell. Instead she watched Teren dismount.
He did it badly. His boots hit the flooded road, and he folded for an instant with one hand braced on the saddle. Ivo reached for him. Teren shook him off, not sharply, but with enough finality to make his brother's hand close into a fist.
Then Teren walked toward Mara.
"What do you need?" he asked.
"A dry cloth. Copper wire if you have it. A weight."
He removed the scarf from his neck and handed it to her.
"That is not dry."
"It is drier than the road."
She took it. The wool held the clean smell of horse and cold air. He pulled a length of reins from the saddle, cut the leather with his knife, and stripped the iron bit free.
"The bit will serve as a weight," he said.
"You are bleeding through your coat."
"Yes."
"That was not permission to continue."
"I understood it as an observation."
He knelt beside her in the peat. His face had gone pale beneath the rain, but his hands were steady. He held the iron bit while she wrapped the wet scarf around the exposed wire at the nearest post.
The contact snapped once. A blue spark lifted between their hands.
Teren did not pull away.
Mara looked at his fingers. He had placed them over the wool, not the wire, and kept his thumb against the post to hold it from slipping. It was a stupidly careful thing to do. He had listened to her instructions without asking whether the danger was real, and he had chosen the one part of the task that left her both hands free.
She would remember that. She resented him for making it possible.
"When I say drop the bit, drop it," she said.
"Understood."
Pell urged his horse forward. "Mara, this is your final opportunity to return to Crown custody without further charge."
"You have people chained behind a gate."
"The Office has people held under a labor instrument whose legality can be reviewed."
"After they die?"
"After proper review."
Rennic turned his pistol toward Pell. "There is your fatherly favor."
Pell's men raised their weapons.
Nella moved first. She slashed the lantern hanging from the nearest Office saddle. Oil burst over the horse's flank. The animal screamed and kicked, throwing its rider into the flooded ditch. Darkness swallowed half the road.
Ivo laughed once, hard and without pleasure. "That was a poor lantern."
"Your brother sharpened my knife," Nella said. "I am returning the courtesy."
Gunfire cracked through the trees.
The white-coated people on the far bank dropped behind the gate. Pell's men fired at the lanterns. Glass burst. The river became a field of moving black where the bridge lay hidden.
Mara felt the wire heat beneath the scarf.
"Now," she said.
Teren released the bit.
The iron weight struck the flooded road. The circuit screamed through the posts. Beneath them, chains pulled taut. One end of the drowned bridge rose with a groan, lifting slabs of black timber from the water. The iron gate on the far bank swung inward.
The people behind it surged forward.
A shot struck the post beside Mara's head. Splinters cut her cheek. Teren caught the back of her coat and dragged her down as the bridge heaved higher.
"Move," he said.
They crossed on the slanting timbers while the river poured through the gaps. Mara went first, one hand on the rail, the other gripping the copper wire. Behind her, Teren stumbled. His boot slid between two boards.
She turned.
He had fallen to one knee, his injured side pressed against the rail. Ivo was on the bridge behind him, reaching over the rising timber.
"Leave me," Teren said.
Ivo's hand closed around his collar. "I have been waiting thirty years to hear you say something useful."
The bridge lurched. Ivo's knife flew from his hand and vanished into the river.
Mara dropped the wire and seized the back of Teren's belt. Together she and Ivo hauled him free. His weight dragged them both down. Teren's shoulder struck Mara's chest, and for one breath she had his face against her neck, his breath hot through the wet wool.
Then they were moving again.
The last timber rose beneath Mara's boot. She jumped for the far bank and rolled into the mud. Teren landed beside her. Ivo came after, then Nella, while Rennic stood on the bridge with his pistol turned back toward Pell's advancing men.
"Rennic!" Mara shouted.
He did not look at her.
Pell had reached the near end of the bridge. His coat was torn, his hands empty. "Vale," he called. "You cannot take them into the forest. They have no lawful status beyond the compound."
Rennic smiled with the ruined side of his face.
"Neither did you give them any here."
He fired at the post.
The bridge collapsed.
Timbers fell in a long, grinding chain. Water swallowed the iron. Rennic jumped as the section beneath him broke, caught the far rail, and vanished below it. Mara ran to the edge, but the river had already closed over the place where he had been.
A lantern drifted downstream.
The rescued people gathered around the tollhouse, shivering beneath patched blankets. The young woman with the red scarf stood in front of them, holding the labor order in both hands. Teren sat against the gatepost while Nella pressed a wad of cloth to his side. Ivo had recovered no weapon. Pell remained on the opposite bank with his men and the broken road between them.
Mara knelt beside Teren.
"You need stitching."
"So I have been told."
"By whom?"
"By the expression on your face."
She opened his coat. The bullet had grazed him beneath the ribs, widening an old wound rather than making a clean new one. Blood welled sluggishly, dark as spoiled plum syrup.
Teren watched her hands as she cleaned it.
"Do not bargain with me," she said.
"I have not spoken."
"You are thinking elaborately."
His mouth moved, almost a smile, then stopped. "The people here cannot remain at the tollhouse. Pell will bring another party."
"Yes."
"Nella knows a route."
"Nella knows six routes and has promised three of them to people who would sell us for boots."
"Then choose the route that costs the least."
Mara tied the bandage tight. He did not flinch. His hand closed around the edge of the gatepost instead.
Across the river, Pell lifted his voice. "Mara. The labor order is not proof of a conspiracy. It is one irregular instrument among many. Give it to me, and I will have the matter entered into review."
The young woman in the red scarf looked at Mara.
"He says that as if review gives back the dead."
Mara took the order from her. The paper was coarse, Crown stock, with three lines of figures written in a hand she recognized.
Not Pell's.
The columns recorded salt, charcoal, and bodies. Beside each settlement name was a number of days worked. Beside the deaths, the same ink had written: transferred.
Mara folded the order once.
Teren's eyes stayed on her face. "What is it?"
She looked toward the river. Pell had begun speaking to his men, soft and procedural, already turning the collapse into a report.
"It is a list," Mara said.
"Of what?"
She slid the paper into the inner pocket of her coat. The ink had bled at the bottom, but one final entry remained legible.
Veylan estate.
Beside it, under days worked, someone had written a single figure.
Thirty-seven.