The Joint's Whistle

Soot floats midway up the room, a warm grit that crunches between Darío's molars every time he swallows.

He has spent a good while scraping the ash off his bread crust with a fingernail, chewing it to trick his stomach. There's no water left in the dented pewter jug, only a lukewarm sediment with a copper aftertaste that scrapes the back of his throat without quenching his thirst. He stays sitting on the edge of the rough linen pallet. His heels burn against the floor flags, but the night draft sneaks through the unglazed loophole and leaves his toes numb. It's when he rests the nape of his neck against the damp stone that the background hum shifts. It's no longer the dull vibration of the boilers that makes the poorly washed tin plates on the shelf rattle. It's something sharper.

A hiss as fine as a wire stretched to its limit.

It comes from the baseboard joint, where the earthy mortar is cracking under the pressure. Breathing in these underground dormitories has always been a slow sentence—phlegm stagnant in the lungs, the aftertaste of sulfur and the burnt tallow of the oil lamps blackening the vaults—but this whistle brings a white, suffocating vapor laden with the stench of bilge and dead water. Somewhere in the low galleries, the purge system of the troops' latrines is collapsing under the backflow from the central boilers. Darío stands up. The scorching stone punishes the soles of his bare feet. At the back of the room, in the doorway the regulations forbid latching, the crooked silhouette of Eusebio Alvareda keeps watch against the jamb, wrapped in a gray blanket that stinks of damp.

"The cesspool drain's jammed," Eusebio says without looking at him, scratching his dirty wrist with a chipped thumbnail. "Smells like boiled dog from the moat to the battlements. If that joint blows, the broth will be up to our hams before the cock crows."

"Where's the warden?" Darío asks, feeling his throat burn as he forces his voice over the hum.

"Down below. Looking for the shut-off valve or damning someone's ancestors. With Tarsio you never know the difference." The old man shifts his weight from one foot to the other; his knees creak like dry branches beneath the rough cloth of his breeches. "Listen, Don Darío, if you've got a shred of hemp or a bit of wire from tying the blankets, save it for me. The heel of my left espadrille has split, and with this blazing floor I'm walking on embers."

"I don't have any wire, Eusebio."

"Fine. I'll stuff a strip of old rag in there instead."

A dry blow, deep as a punch to the mountain's belly, shakes the foundations of the dormitory. It isn't rock breaking: it's the water hammer, that blind push of hot water looking for a way out when the pipes choke with scale. Three levels down, in the blind galleries where the three hundred serfs of Val-Solana sleep piled on rotting mats, the pipes run flush against the damp wooden ceilings. If the steam bursts the upper latrines, the pitch and boiling water will cascade straight through the relief drains into their pits. Darío doesn't wait to put on his shoes; he shoves the door open and breaks into a run down the basalt spiral, following the trail of sour smoke.

The latrine service corridor is a throat of thick mist where the shapes of the arches can barely be made out. The air, saturated with sulfurous steam and burnt caulking grease, stings the mouth and forces dry swallows between retches. In the center of the gallery, wrapped in a boiling cloud that spurts from the gaps around the main piston, Tarsio Marento is wrestling with the discharge valve. His tunic is unbuttoned, his torso soaked in grayish sweat, and his fingers are covered in a black crust of tallow and rust that stains everything he touches; his boots slip in the greasy silt of the soot-polished tiles.

"Get out of the damn way!" Tarsio roars when he hears Darío's steps, his voice shattered by the scorching air. "The stem is stuck! It's welded shut with scale!"

The valve whistles with a shriek so sharp it makes the teeth vibrate in their jaws, a metallic complaint that threatens to tear the lead casting apart at any second.

"It's going to take out the lower galleries!" Darío shouts, choking on the steam as he plunges into the cloud.

Tarsio lets out a snort that ends in a dry, thick cough; he spits dark phlegm onto the basalt before locking his reddened eyes onto Darío's.

"Then grab the damn bar or we'll both get scalded!"

The pipe groans.

The purge lever, a solid iron rod two yards long, crusted with rust and saltpeter, vibrates with savage violence and drinks the heat of the cesspool until it glows red at the base. Darío thrusts his bare hands next to his captor's. The iron sears his palms in a flash of pure pain that makes him clench his jaw until he hears his molars grind; the smell of scorched skin rises at once between the two men. They push downward with the full weight of their bodies, shoulder to shoulder, their ragged breaths fusing into the same foul cloud. In the desperate twist against the seized metal, Darío's bare forearm slams into Tarsio's sweaty one; the heat melts the film of grease and sweat between them and one man's skin sticks to the other's, burning in unison against the straining iron. Neither of them yields or pulls back a single inch while the whistle of the joint threatens to tear their eardrums.

The metal gives way all at once with a cavernous bang. The lever drops an inch at the cost of both their skins, and the steam bursts toward the drains in a blind torrent that throws them to their knees in the muck, stuck together by their burns and swallowing the same scorched air.