The Steam Chamber

The residual steam from the secondary pipes hissed against the damp asbestos joints along the service passage. Mateo flexed the fingers of his left hand, one by one, feeling the graft around his shoulder blade pull upward with the stubbornness of a twine soaked in brine, forcing him to tilt his neck to the side to avoid tearing the deep suture. Beside him, Nico crouched over a drainage grate, scraping the sole of his untrimmed boot with a cast-iron splinter to dislodge a crust of hardened tar.

"I've had a pebble stuck in here since pier six," the boy muttered without looking up, awkwardly rubbing his worn heel against the iron. "If I don't get it out now, the sore's going to open up again and I won't be able to bend my foot."

"Leave it," Mateo said.

"It's digging into my heel, Mateo. Really."

"Put the splinter away and shut up."

Nico slipped the iron piece into the pocket of his canvas coat without arguing further, though he took three full seconds to shake the dust from his hem and adjust his frayed trouser leg over his instep. In that nook, the air smelled of vegetable grease burned in small stoves by the night-shift stokers and of that bitter sediment of freshly cooled tar that never quite peeled away from the refractory bricks. Beyond the access hatch, four blocks away or a century distant depending on who kept count of the hours, the steam hammers struck with a muffled, steady rumble, like the tired pulse of an ox plowing stony soil under the fog.

Mateo pressed his forehead for a moment against the rough concrete partition covered in industrial slime. He tried to remember if in the backyard of the house where he grew up the drainage ditch was made of zinc or pitched wood, but the thought frayed before forming a clean image, suddenly buried by an acidic jolt that rose from his collarbone: a dry stab, like reed splinters breaking inside the muscle.

He rubbed his eyelids with the back of his wrist. Nothing.

He pushed the double-acting hatch with his healthy shoulder. The steam chamber opened like the belly of a frigate stranded in a factory swamp, where arc welds glowed behind soaked canvases with a dull orange radiance that barely managed to outline the thermal distributors. On the floor of cracked tiles, the purge gutters dragged oily water tinged with violet glimmers, over which floated greasy oakum and the viscous trail of synovial fluid spilled by some mechanical joint blown out during roughing. At the far end of the nave, between two main manifolds vibrating under three hundred pounds of pressure, Bruna Varga waited for him.

She did not resemble the martial captains of the old chronicles that scribcribes used to record in the margins of inventories—those dry heroes of clean profiles who never knew the saltpeter or the rust of a settling pit. Bruna was a mass of heavy bone wedged by force into a wrought-iron frame: the uprights of the exoskeleton were not cinched with leather harnesses, but driven directly into her floating ribs with rough steel plates and poorly bolted studs that oozed a whitish crust over her grayish skin. Every time she swelled her chest to catch her breath, the metal forced the cartilage with a dull crunch, as if someone were twisting old leather straps with rusted pliers. In her right hand she held a live steam lance, a two-inch armored lead hose connected to the boiler header.

"Cerna," she said, and her voice had the roughness of a file worn against a rail, interrupted by the whistle of the seals in her chest. "You're late for shift change."

"Varga."

"Your left shoulder is sagging," the woman said, weighing the lead lance with the same unsavory calm with which a butcher calculates the balance of his mallet before entering the slaughter box. "The tendons are charging you freight. It always happens when you bring them close to a heat source. They shrink like gut on a skillet."

Mateo took a step forward; the slime on the tiles threatened to split his legs, but he braced his boot against the edge of a gutter. He could see the main pressure gauge behind the woman's back: the copper needle danced inside the red quadrant, clattering against the stop with an incessant metallic chime.

"There is no relief for you in this pit," Bruna added, spitting a dark mass of tobacco and phlegm to the side that hit the channel with a soft thud. "Neither for you nor for the kid you left watching the sluice. There's no register here except the ash of the collector."

Mateo lowered his eyes to his own fingers, black from gallery coal and cut at the fingertips by salvage wire. In the foremen's ledger books there were never names for anyone; only lists of broken shovels, lost rivets, dead mules' horseshoes, and boots confiscated from men who fell into the pits without anyone stopping the connecting rods.

Bruna opened the valve.

The live steam erupted with the furious screech of a boiler bursting at the seam. The white jet lashed the air with the violence of a red-hot iron bar and swept the floor, tearing strips of slime and stripping old paint from the tanks. Mateo threw himself diagonally to the left; the scorching blast grazed the back of his neck, burning his skin and drying his throat as if he had swallowed a handful of quicklime. The concrete slab thundered beneath his ribs. He rolled over a viscous puddle, planted his right palm on the industrial mud, and propelled himself forward before the woman could correct her aim with the heavy hose.

They shortened the distance in a rush. The clash of the iron harness against Mateo's chest produced a crunch identical to that of two tin pots crushed under a cart wheel. Bruna did not yield an inch; the mechanical cylinders fixed to her hips absorbed the onslaught and delivered a heavy blow that sank Mateo's boots into the muck of the grate. With her free hand, she reached for his throat with claws of riveted sheet metal. Mateo dodged the swipe by tilting his jaw—the metal tore a strand of leather from his coat collar—and thrust his arms blindly behind the armor, searching for the tension cables anchoring the mechanism's spine.

His fingers found the bundle of braided wire. The steel vibrated beneath his calluses like the hawser of a capstan hauling excessive weight up from the bottom of the pier.

The metal bit into the flesh.

Mateo wound the cables around his wrists, locked his heels in the rim of the gutter, and pulled backward with all the dead weight of his broken frame. Bruna roared; it was a thick howl, without words or prayers, drowned by the brutal strain of her ribs crunching beneath the plates driven into her flesh. The woman dropped the lance. Free of weight, the lead hose lashed the floor like a blind serpent, striking the central distributor over and over and vomiting opaque clouds that scorched the protective canvases.

The pressure gauges could not withstand the backflow. They exploded one after the other along the control panel: first the glass shattered in a fine shower that struck Mateo's shoulders, then the brass needles bent outward like burst thorns, and a jet of boiling water shot from the cracked threads of the auxiliary pipes.

Mateo did not let go. He pressed the tension wire against Bruna's trachea, burying her face against the rusty plate of the foreman's shoulder. He caught her sour breath, the fetid odor of suppurating bandages beneath the iron, and the oily stench of lubricant draining down her mechanical thighs. The woman kicked blindly backward, tearing his clothing with her metal claws, but the cable continued sinking relentlessly into the livid crease of her neck, snapping the cartilage against the cast-iron collar.

Then the main distributor blew in half with a dry thunder that tore the sheet metal from the roof.

A white, boiling, absolute wall surged from the fracture of the master conduit, devouring in the blink of an eye the slate-iron beams, the violet gutters, and the very air remaining in their lungs. The white gas enveloped them in a blind knot where up and down no longer existed. Mateo felt his palms split to the periosteum by the tension of the wires while Bruna's body slackened in a final spasmodic shudder, but the force of the steam dragged them both, intertwined and blind, toward the boiling pit of the lower boilers.

In the outer corridor, where the rupture was heard only as the distant slamming of an old cupboard, Nico finally managed to pull off his boot. He dumped the footwear onto the greasy floor and watched the pebble fall: a flat stone, the size of a child's fingernail, stained with a drop of cold tallow that looked like a dry lentil forgotten at the bottom of a plate.