The thumbprint lasted three seconds in the rain before Mara folded the paper against her chest.
Cassian caught her wrist.
“Not there.”
Her coat was soaked through. The bandage around her burned palm had gone gray at the edges, and water ran from her cuff across the transfer slip.
“Your concern for archival practice is touching,” she said.
A search lamp struck the spillway behind them.
Cassian pulled her down as white light scraped over the seawall. They landed against wet stone beneath the parapet, Mara’s shoulder driven into his ribs. Boots rang on the iron stairs below. Tobias would send two teams, one along the wall and one through the flood lanes. He had taught Cassian to close exits before pursuing targets.
Cassian had learned other things from him too.
He took the paper from Mara, slid it beneath his shirt, and tucked it flat against the dry skin over his heart.
She looked at his hand inside his collar.
“Archival practice,” he said.
“Of course.”
The lamp passed back. He rose into its wake and led her east along the seawall.
Wind shoved harbor water over the blocks. Beyond the wall, cranes stood in fog like instruments left after an operation. The city side dropped into a maze of flood channels, net sheds, and narrow lanes built before anyone had agreed where the harbor ended. Cassian counted the intervals between the search lamps. Nine seconds. Then eight.
Tobias was tightening the pattern.
At the first drainage cut, Cassian swung over the parapet and lowered himself by one arm. His boots found the maintenance ladder bolted below. Mara stared down at him.
“That ladder ends in water.”
“The tide is falling.”
“That is water with a schedule.”
“Better than men with rifles.”
A whistle sounded from the spillway. Two short notes.
Mara climbed over.
Her injured hand failed on the third rung. Cassian caught her by the waist before her boots slipped free. For one suspended moment her weight rested against his forearm, solid and warm despite the rain. She did not gasp or apologize. She hooked her good elbow through the ladder and found the next rung with the toe of her boot.
“Release me,” she said.
“When you have three points of contact.”
“I have two points and an objection.”
“Keep the objection. Find another rung.”
She did. He let go.
They descended into the flood channel as the search lamp crossed above them. Black water reached Cassian’s knees. Mara stepped down beside him, jaw tight when the cold hit her burned hand.
He took the bandaged wrist and held it above the water.
“This is inefficient,” she said.
“Yes.”
She studied him as if inefficiency were evidence of a serious defect. Then she moved with him through the channel, her fingers closed around the back of his sleeve.
The touch should have been only practical. Cassian found himself measuring each step by whether her grip remained there.
Behind them, a Breakwater officer shouted that the eastern sluice was clear.
Cassian turned west.
They followed the channel beneath three streets and came out behind the old fish scales, where runoff poured from carved stone mouths into the harbor. The dawn market had begun despite the weather. Men in rubber aprons dragged silver catch across tables under swinging lamps. Crushed ice clogged the gutters. No one looked twice at two wet people moving quickly, which meant everyone looked once and decided the trouble was expensive.
Mara’s grip vanished from his sleeve.
He disliked the cold where it had been.
“Where?” she asked.
“Elian.”
“He is not a fingerprint examiner.”
“He knows who falsifies union ballots.”
“That is a distinct profession.”
“In Blackwater, the tools overlap.”
A Breakwater motor growled at the market entrance. Cassian took a stained apron from an unattended hook and dropped it over Mara’s shoulders. She looked down at the fish blood across the front.
“Charming.”
“Turn around.”
She did, without asking why. That was what held his attention, more than the line of her mouth or the rain caught in her lashes. Mara questioned every motive and obeyed competent instruction without wasting a second. Trust from her arrived disguised as good procedure.
Cassian knotted the apron behind her. His fingers brushed the damp wool at her waist.
“Your hands are cold,” she said.
“It’s raining.”
“A complete emotional history.”
The motor stopped.
He took a crate from a stack and put it into her good arm. Then he lifted a tub of ice and fish onto his shoulder. They walked between the stalls as four Breakwater officers entered in black weather capes.
The youngest officer glanced at Cassian, dismissed the apron, and looked again.
Cassian tipped the tub.
Meltwater and six gutted mackerel struck the stones between them. A porter swore. Mara stepped neatly into the officer’s path and let the crate split against his boots.
“Forgive me,” she said with exquisite sincerity. “Workplace fatigue.”
Fish slid under the officer’s heel. He caught a stall awning before he fell, bringing a sheet of rainwater down over himself and his partner.
Cassian and Mara were through the rear gate before the shouting became organized.
Elian Sorn kept no office. Offices could be searched, taxed, or burned. He conducted union business from a boiler room beneath the ropewalk, where the machinery had been condemned twelve years earlier and continued supplying heat because the neighborhood preferred explosion to winter.
Cassian knocked four times on the steel door.
A viewing slot opened.
“You look,” Elian said, “like the harbor chewed you and found you lacking in flavor.”
“We need the press room.”
“Good morning to you too, Vale.” The slot shifted toward Mara. “Quill, you’re bleeding on my threshold.”
“It belongs to the fish.”
“Fish don’t wear boots that dear.”
Mara looked down. “They were a gift.”
The door opened.
Elian wore a sleeveless wool shirt and held a wrench long enough to settle arguments. He locked three bolts behind them, then led them past the boiler into a room where old union notices sagged from the walls. A hand press occupied the center table beside trays of ink, rollers, and stacks of ballot paper.
Mara removed the transfer slip from beneath Cassian’s shirt herself. Her knuckles brushed his sternum. She paused, perhaps because his heart had become offensively noticeable.
“Dry enough,” she said.
“High praise.”
She carried the page to the table.
Elian bent over it without touching. “That Edrin Quill’s signature?”
“Yes,” Mara said.
The single word emptied the room of humor.
Elian set down the wrench. He fetched a glass plate, a shaded lamp, and a tin of powder from a locked cabinet. When Cassian raised an eyebrow, Elian scowled.
“Stewards vote with their thumbs at closed meetings. Men who buy votes have an irritating habit of voting twice.”
He fixed the sheet beneath the glass. The rain-developed print lay below Edrin’s name, dark at the center and feathered at one edge.
Mara stood with her burned hand against her ribs. She did not lean closer. She watched Elian’s tools instead, checking each one before it touched the page.
“Can you lift it?” Cassian asked.
“I can photograph it in my heart and sing it to a magistrate.” Elian adjusted the lamp. “For a clean comparison, I need the owner.”
Mara took a narrow notebook from inside her coat. The cover had swollen with water, but the inner pages were waxed. She turned to a pocket at the back and removed a customs identification card.
Edrin Quill looked older in the photograph than Cassian remembered from the attack footage. Narrow face. Patient eyes. A man accustomed to standing still while other people lied.
His right thumbprint was stamped beside the image.
Elian placed the card under the glass.
The two patterns did not match.
Mara’s good hand flattened on the table. “Again.”
Elian rotated the identification card and adjusted the lens. “Still not your father.”
Cassian looked at the transfer slip. Tobias had held it out as proof that Edrin had taken custody of him. A signature could be coerced. A print beneath it could name the coercion.
“Breakwater personnel files use prints,” Mara said.
“So do customs warrants,” Elian replied. “Neither cupboard opens for my winning smile.”
Cassian saw the broken center of the print. Not a smudge. A thin white interruption ran through the whorl, bent at the end like a hook.
He knew that scar.
At fourteen, he had reached across a training winch before its brake had seated. Tobias had knocked his hand clear, but the cable burr opened Cassian’s thumb to the bone. Iona had called the scar tuition.
Cassian put his right hand beside the page.
Mara looked from his thumb to the print. She said nothing.
Elian’s eyes narrowed. “Ink it.”
Cassian pressed his thumb to the union pad, then onto a blank ballot. Elian set the fresh mark beneath the lens.
Whorl met whorl. The hooked scar crossed both centers.
Mara pulled the lamp closer. Light hardened every ridge.
“It’s yours,” Elian said.
Cassian wiped his thumb on the fish-stained apron. The ink only spread into the scar.
“They used my hand twice,” he said. “Palm for the key. Thumb for the transfer.”
“No.” Mara’s voice was quiet.
She lifted the infirmary slip by its edges and angled it toward the lamp. “Look at the pressure.”
The print was darker on the left, the ridges compressed sideways. Cassian remembered nothing of the infirmary except antiseptic, wool restraints, and Tobias telling someone he would wake clean.
Mara placed Cassian’s fresh print beside the old one. “A clerk taking a sedated patient’s mark would press down. This was rolled. Hard. From nail edge inward.”
Elian scratched his jaw. “Meaning?”
“My father made customs detainees mark transfer documents this way when he believed the receiving officer’s authority was false. The direction was the warning. It forced the detainee’s print across the signature line.”
Her finger stopped above the faint tail of Edrin’s name. The old thumbprint crossed the final stroke.
“He knew Cassian could not consent,” she said. “He left the objection in the only part they couldn’t remove without invalidating the transfer.”
Cassian stared at Edrin Quill’s signature beneath his own scar.
All night he had carried the thought of Mara’s father bending over his unconscious body, signing him into Tobias’s custody, opening the door through which Pell’s key had passed. He had arranged the facts as he arranged threats: by distance, access, consequence. Edrin had been nearest. Edrin had signed.
Mara had known what Cassian was thinking. She had still switched the pages. She had burned her hand, crossed a flood channel, and protected evidence that seemed to condemn her father because the document had not finished speaking.
Documents, he had thought, were easier for her than people.
He had been wrong about what that cost her.
A fist struck the outer door.
Three measured blows.
Elian killed the lamp.
In the dark, Mara folded the transfer slip once along its original crease. Her hand shook only when the paper was hidden.
Another knock came, and Tobias Rusk’s voice carried through the steel.
“Mr. Sorn. I’ve come for the man whose thumbprint you just found.”