Venting the Pressure

Oskari Lemmikalt tapped the round glass face of the auxiliary branch gauge with his brass feeler gauge, verifying the black needle resting firm at eighty pounds of pressure. He tightened the swivel collar on the live port with a final jerk of his bypass wrench, then leveled the four-foot boiler lance toward the iron door. The copper nozzle trembled against his knuckles, thrumming with dry, superheated steam trapped behind the quarter-turn stopcock.

"Hold the hose collar, not the packing gland," Oskari murmured, his voice flat against the thrum of the riser pipes behind them. "You strip that brass thread and this room becomes a scald tank in four seconds flat."

Helmi Kaskitalo shifted her grip on the reinforced canvas line, her knuckles gray with lime-dust and oil. She did not answer. Her jaw stayed rigid, her eyes fixed on the heavy iron latch bar seated across the closet door.

Outside, the dry, wooden clack of revolving flyer bobbins scraped against the iron plating. The beast was turning on the threshold, eight paces north, eight paces south, mimicking the steady patrol of a spinning-mule carriage. With every pass, its bloated bulk pressed the sheet metal inward, grinding mortar dust out of the brick jambs in pale, powdery showers. The air bleeding under the seam carried the suffocating stench of scorched mutton tallow, stale bone meal, and wet fleeces.

Oskari rested the heel of his boot against the lower sill and raised his left hand toward the drop-latch. His burned shins flared with sharp, pulling heat through his trousers, but his fingers remained steady on the cold iron handle. He tracked the sound through the plates: the heavy drag of woven cordage, the rhythmic tick-tick-click of pirn gears rattling inside a ribcage of twisted drive-bands, the pause at the northern turn.

"When I drop the latch, kick the bottom plate," Oskari said. "Don't look at it. Just keep both hands on the canvas sleeve and keep your head behind my shoulder."

Helmi nodded once. She wedged the toe of her thick wooden clog against the lower corner of the door.

Oskari waited for the rhythm. The scraping mass reached the south hinge, hesitated, and began its slow, mechanical pivot. The gear-lash in its hollow core clicked four times.

On the third click, Oskari threw his weight upward into the drop-latch.

The iron bar cleared its bracket with a loud snap. Helmi kicked the door hard.

The heavy iron door swung outward, striking a tangled mass of grease-slick cordage and gray bone-ash fleece with a dull thud. The entity recoiled, its multi-jointed limbs of bundled spindle shafts and braided drive-belts splaying across the catwalk railings. In the dark gap between its woven shoulders, broken porcelain guide-eyes and shattered copper flyer arms clicked together in blind agitation.

Oskari did not wait for the creature to gather its coils. He stepped across the threshold, jammed the nozzle forward into the center of the knotted mass, and wrenched the stopcock wide open.

Eighty pounds of pressurized steam roared out of the copper tip in a blinding, conical fury.

The deafening scream of the blast filled the narrow passage, drowning out the roar of the lower machinery. Superheated vapor struck the beast's chest plate, instantly liquefying the thick tallow sizing that bound its outer layer. The white bone-ash crust disintegrated into boiling slush. The gray wool fibers contracted violently under the sudden heat, shriveling and turning black as if touched by open fire.

A high, whistling shriek tore through the beast's interior spindles. The creature convulsed, dozens of corded limbs thrashing wildly against the iron floor grating. Taut, braided lengths of yarn snapped like dry violin strings, whipping against the walls and leaving greasy smears across the whitewashed brickwork.

Oskari leaned into the recoil of the lance, bracing the copper pipe against his hip while the canvas hose bucked violently behind him. "Push through!" he shouted over the hiss.

Helmi drove forward, feeding the stiff hose through the doorway and keeping the line clear of the jamb.

The creature scrambled backward, dragging its smoking torso across the floor. Its upper limbs, knotted around bent steel spindles and shattered mule carriages, seized the overhead iron roof trusses. With a sickening sound of peeling fleece and screeching metal, the monstrosity hauled its bulk upward into the black rafters, leaving a rain of boiling grease and charred fibers dripping onto the catwalk.

Oskari snapped the stopcock shut. The deafening roar died instantly, leaving only the hiss of cooling metal and the frantic thud of their own boots against the iron plates. A thick curtain of white vapor hung between the catwalk and the overhead girders, masking the dark ceiling.

He stepped back into the doorway, shut the wall test valve with a hard downward stroke of his master bypass wrench, and threw his weight into the swivel collar. The brass union cracked loose with a hiss. He coiled the detached hose over his shoulder, stowed his brass inspection lantern and the pouch with the severed living braid securely into his canvas kit harness, and gripped his eighteen-inch leverage bar in his right fist.

"Move," Oskari said, tucking the detached four-foot copper lance beneath his left arm while holding the leverage bar in his right. "Before the tallow cools and resets the knit."

Helmi took the lead down the narrow walkway, her heavy thread shears gripped in her right fist. They ran between the double row of silent flyer frames, their boots clattering over the iron floor plates. The fourth-floor hall was stiflingly hot, the air thick with moisture and the sharp, alkaline sting of bone sizing. Steam curled around every iron upright, trapped by the sealed ceiling vents above.

At frame fifty-two, Oskari glanced toward the ceiling. High in the shadows between the roof trusses, something massive shifted with the rhythmic ticking of a clockwork escapement, tracking their movement through the dense fog. It did not drop. The scorched wool on its underbelly was still shedding white vapor, smoking against the cold iron beams.

"Almost to the stairwell," Helmi called back, her breath coming in ragged gasps.

She rounded the corner of the supervisor's station and reached the heavy fire door leading to the central stairwell tower. She grabbed the brass handle, threw her weight backward, and pulled.

The door swung open four inches and stopped dead with a dull, cushioned thud.

Helmi threw her shoulder against the wood, shoving with all her strength. The door did not yield.

Oskari caught up, planting his boots on the greasy floor plates and wedging the tip of his eighteen-inch leverage bar into the narrow gap between the door and the frame. He hauled back on the bar. The wood groaned under the pressure, widening the aperture by another two inches.

Inside the stairwell shaft, there were no steps.

From the fifth-floor landing all the way down to the lower foundations, the central spiral had been obliterated. In place of the stone stairs and iron railings, a solid, towering monolith of packed fleece and hardened bone tallow filled the vertical core of the tower. Thousands of taut, gray cords crisscrossed the vertical void like the warp on a colossal loom, binding the masonry into an impenetrable plug. Embedded within the greasy surface were broken tally pegs, smashed tin lunch pails, and shreds of blue indigo aprons, all wound tight into the core.

Helmi lowered her hands from the door, staring into the gray, motionless mass. "The entire tower," she whispered. "It started from the bottom."

"It didn't start from the bottom," Oskari said, running his fingers across the severed edge of a cord trapped in the door jamb. The wax was cold, dense as cured leather. "It anchored the core hours ago. It wanted every shift worker driven up here where the steam would finish the set."

A heavy metallic groan vibrated through the floor plates under their boots. Overhead, the rafter beams flexed, shedding flakes of red rust onto the walkway.

Oskari turned his back on the sealed stairwell and looked out across the fourth-floor spinning hall. The only remaining path led past the open iron framework of the central loom, where the main twenty-ton drive shaft cut straight through the floor toward the lower boiler house.

"The stairs are finished," Oskari said, tightening his grip on the steam-lance. "We take the drive frame."