Pressure in the Cauldrons

Could a runaway apprentice outrun the thermal pressure of forty boiling cauldrons? Jaromir gripped the ash-wood lever of the central manifold beneath the laundry gallery, his ears tuned to the heavy thump of the copper head-tanks above. If Anton slipped out to the town quay, the morning timber barge would carry him past the river locks and out of Teplice long before noon. Jaromir did not intend to let him reach the wharf.

Through the slatted floorboards, the laundry hall smelled of scalded lye, damp hemp, and mountain pine. Cedomir had chased the limping youth up from the sulfur cisterns, steering him precisely into the subterranean gallery where Marika's washerwomen kept twelve cauldrons bubbling day and night.

"North passage is blocked, lad!" Cedomir's great bellow rattled the cedar rafters, echoing through the copper flue pipes like thunder in a barrel. "Fresh lye on the floorboards! Very slippery for traitorous heels!"

Jaromir heard the slap of wet boots against tile. Anton rounded the corner of the rinsing vats, breathing in shallow, terrified gasps. The lad clutched a heavy velvet purse against his ribs, his wool cloak spattered with gray sulfur slurry.

Anton lunged for the iron latch of the west laundry gate.

Jaromir pulled the upper counterweight lever two notches down. The iron cable squealed on its brass pulley. Overhead, the bypass valve opened half an inch, releasing a five-foot curtain of hissing white vapor directly across the doorway. The steam was not hot enough to scald through wool, but the blinding wall of cloud drove Anton back three stumbling steps.

"The gate is stuck, Anton," Jaromir said, stepping out from the shadow of the boiler manifold with an iron spanner in his right hand. "The cedar casing swells when we heat the wash water. You knew that when you planed the shims."

Anton whipped around, his back hitting the copper side of the third boiler. He looked for the south exit, but Marika stood in the archway, her muscular arms crossed over a sodden linen sheet heavy enough to break an ankle. Beside her, Zlatka emerged from the vapor, holding a brass beam balance in one hand and a bundle of dried valerian stalks in the other.

"Let me out," Anton rasped, his knuckles white around the velvet purse. "The bailiffs are on their way to nail the seals. If Volkov finds you here—"

"The magistrate won't find us unprepared," Zlatka said, stepping forward until the boiler light caught her face. Her voice was steady, cut with cold certainty. "My father took you in when the guild kicked you out of the Upper Reach. He taught you how to weigh tinctures, how to read watermarks on dried root."

"Dragomir was an old fool," Anton spit, though his eyes darted frantically toward the high venting slats. "He was going to surrender his council seat. He wanted to give the spring conduits to the municipal trust for nothing!"

"So you sold his share to Highflume Sawmill," Jaromir said. He reached into his leather coat and produced the hand-carved walnut shim, setting it on the brick rim of the cold trough between them. "Seven-degree rake. Master plane marks with a double-nicked blade. The exact chatter left by your smoothing plane behind the mortar block."

Anton stared at the dark wedge of wood. "Anyone could have planed that."

"Not anyone had fresh mountain-pine resin on their cuffs," Marika said, her voice dropping into a dangerous rumble. She tossed a folded working tunic onto the flagstones. "You visited the highland sawmills before dawn three days ago. Green pine, unseasoned, the kind they only cut at Highflume Gorge. That's where you delivered the stolen sleep tincture."

Zlatka set the brass balance on a barrel head. "Twenty-four ounces of triple-macerated valerian extract. Father never kept more than two crocks in the locked dispensary. You dosed his morning chamomile infusion before he walked to the baths, waited until the sopor stopped his heart on the dry pine benches, and hauled his body into the Lavender Grotto."

Anton pressed harder against the hot copper vat. "You have no proof! The coroner signed the paper—an accidental chill, a burst valve!"

"A burst valve caused by this," Jaromir pointed the spanner at the walnut wedge. "You jammed the intake mortise so the cold water would flood the plunge pool and hide the time of death. You calculated that the swelling wood would lock the gate until noon, giving your masters time to declare the bathhouse unsafe and board up the springs."

"They paid me," Anton muttered, his chin shaking as he pulled the velvet pouch tighter against his ribs. "Fifty chancery crowns. And a safe passage to the lowlands."

Cedomir stepped into the hall, rolling an enormous wicker hamper of steaming sheets into the center of the walkway. He planted his boots wide, resting one large hand on the rim. "Fifty crowns from Master Milos, paid under the third aqueduct arch twenty minutes ago. I heard every word through the runoff conduits, boy. My ears might be sixty winters old, but the masonry here doesn't lie."

Jaromir stepped forward, closing the distance between them. "Give me the purse, Anton. And the permit."

For two seconds Anton looked at the iron spanner in Jaromir's grip, measuring the carpenter's broad shoulders against the narrow space between the cauldrons. The boy's shoulders slumped. He reached into his coat and pulled out a stiff sheet of parchment sealed with red beeswax, letting both the pouch and the writ drop onto the cedar bench.

The chancery seal was unmistakable: Magistrate Volkov's private two-headed eagle, stamped over an official river toll waiver.

Jaromir picked up the parchment, holding it to the lantern light. "This isn't just an escape permit. It's a bill of sale."

Zlatka leaned closer, her eyes scanning the neat chancery script. "A transfer of Dragomir's municipal water shares to the Highflume Timber Syndicate. Signed by Volkov as conservator of the estate."

"Volkov didn't just want the baths closed," Marika said, picking up the heavy iron ladle from the lye vat. "He sold the mountain conduits to the logging barons. If they control the headwaters, they can divert the hot springs to power their automated sawmills and leave the public vats dry."

"They'll be at the Grand Pavilion at noon," Anton whispered, his voice cracking as he sank down against the copper plating. "With two dozen bailiffs and iron bars. You cannot stop them with wooden shims and laundry buckets. The entire town council signed the emergency seizure."

Jaromir tucked the walnut shim and the signed bill of sale into his tool belt. The morning bells across Teplice began their eighth strike, the deep bronze notes vibrating through the copper flues and shaking the water in the cauldrons.

"We don't need the town council," Jaromir said, looking at the three workers standing beside him in the rising steam. "We have the original flume maps, the murderer in our laundry room, and four hours before noon."