The Grand Central Marshalling Yard of Khorat sat like a huge iron spiderweb at the northern apex of the city. There, the low canal basins met the sheer granite escarpment of the High Spire.
Ren Vale lay flat on his stomach upon the soot-scaled roof of an abandoned coal bunker fifty paces east of the outer edge fence. He peeked through the driving winter sleet. Beside him, Vane Vale held a small brass monocular with a cracked achromatic lens, adjusting the focus ring with delicate, gloved fingers.
The cold up here was brutal. The sub-zero wind came howling down off the mountain passes. It whipped sheets of freezing snow horizontally across the vast expanse of railway tracks.
Below them, lit up by thirty towering spirit-gas arc lamps whose blinding white-violet glare turned the snow into fields of crushed diamonds, lay Platform One.
The Solstice Express was already assembled.
It wasn’t a standard passenger locomotive. It was an armored juggernaut of black iron, boiler plate, and steam. At the head of the train stood Locomotive 808—The Iron Giant statue—a three-hundred-ton giant beast with four sets of eight-foot driving wheels, its twin smokestacks venting thick, rotten-egg coal plumes that painted the underside of the station shed black. Steam hissed continuously from its brass relief valves with the ear-splitting roar of a caged dragon.
Behind the locomotive and its two massive coal tenders sat seven carriages:
Three second-class passenger carriages clad in two-inch rolled armor plate, their narrow slit-windows covered in heavy iron wire-mesh. Inside, fifty royal hired blades wearing the dark green and silver livery of the High Spire sat cleaning their heavy breach-loading carbines.
Behind the guard carriages sat Freight Van Three.
It was a windowless, box-shaped castle on steel bogies, heavy with external slanted cross-braces of cold-rolled iron. Heavy lead-sheathed channels ran from the roof of the freight car, linking it directly to the backup steam generator of the second coal tender. Steam hissed through copper pipes along the van’s undercarriage, heating an internal climate system designed to maintain exact humidity and heat for glass-like preservation.
And at the very rear of the train, coupled with heavy high-pressure shock-absorbers, sat Lord Malakor’s private saloon car: The Glass Pavilion.
The saloon car was an obscenity of high-born luxury. Its outer walls were built not of iron. But of curved, three-inch-thick layered crystal panels set into a gold-silver metal-gold-trimmed frame. Inside, through the warm amber glow of velvet-shaded chandeliers, Ren could see dark wood dining tables, silk-upholstered divans, and silver champagne buckets.
And in the center of the saloon car stood the machine.
It was a towering brass rig six feet tall, bristling with air-powered pistons, liquid silver pressure gauges, and linked copper gear-trains: Lord Malakor’s artificial steam lung. Copper intake pipe hubs snaked outward from the central chamber. It ended in an airtight glass metal tube equipped with air-powered clamps designed to hold a human forearm.
“There it’s,” Vane murmured, lowering the monocular, his breath pluming grey in the gale. “The Mark Seven Breath-mask. Designed to drain tube ninety cycles of pressure-sparking deep ring per second from a living crystal lattice. A masterpiece of building, financed by murder.”
Ren stared at the rear car, his fingernails digging through his lambskin apron into his palms until the blood welled.
“Where are the drays?” Ren whispered.
Vane raised the brass glass again, sweeping the outer edge roadway.
“Gate Four,” Vane said, his voice tightening. “The four black carriages from the clinic have just entered the customs yard. Court guard Thorne is riding the lead box, his knee wrapped in dirty bandages. Julian Voss is in the second carriage, carrying the transport docket.”
Ren shifted his gaze.
Beneath the glare of the gas arc lamps, four black-lacquered drays pulled up alongside Freight Van Three. Six court guards in lead-lined aprons hopped down into the slush, their breath pluming white. They unlocked the rear doors of the first heavy cart, slid out an iron transport stretcher. Then they carried it toward the freight van’s high-pressure cargo lift.
Even from fifty yards away, Ren recognized the lead-lined sound hood clamped over the patient’s chest.
Mira.
The high-pressure lift of Freight Van Three hissed as the platform lowered to the level of the heavy cart bed. The guards slid the stretcher into the dark, lead-lined inside of the boxcar. Two heavy iron doors swung shut with a muffled, echoing clang. It was followed by the distinct, clockwork cranking of a five-tumbler security deadbolt engaging.
The careful audit registered with contractual care: Solstice Express Loading Steps. Cargo Status: Parcel 19 (Mira Vale) Loaded Into Van Three. Security Protocol: Deadbolt Engaged (Code: 4-8-1-2). Timeline Until Departure: 72 Minutes.
“The deadbolt code from the manifest,” Ren whispered, his heart hammering against his ribs. “Four-eight-one-two. It matches.”
“It matches,” Vane agreed, snapping the monocular shut and slipping it into his pocket. “The cargo is loaded. But look at the outer edge security, boy.”
Ren looked.
The marshalling yard was an armed camp. Along the granite loading platform, twenty royal arbalesters stood at ten-pace intervals, their short crossbows cocked, lead bolts resting on the grooves. On the narrow high walkways forty feet overhead, four steam-powered Gatling projectors were mounted on swivel pivots. Their many brass barrels shone in the gaslight, manned by gunners in leather blast-masks.
At the main junction switch forty paces ahead of the locomotive, a squad of four rail wardens stood guard around the high-pressure track-shifter. The huge clockwork lever that switched the train from the country siding onto the High Spire Mountain Line.
“Fifty guards on the train,” Ren calculated, his voice dropping into a grim whisper. “Twenty on the platform. Four steam guns on the narrow high walkways. And six men on the junction switch. We can’t charge that platform, Vane. Even with a hundred dyers and weavers, they’d mow us down with the Gatlings before we cleared the coal bunkers.”
“A frontal assault is an exercise in negative returns,” Vane said. He turned his slate-grey eyes upon Ren with a cold, hungry gleam. “We don’t fight the soldiers on the platform. We fight the machinery that feeds them.”
Vane pointed his cane toward the western edge of the yard. There, three massive iron storage towers loomed through the blizzard. The central coal silos and the town spirit-gas pressure pipe hub that fed the arc lamps.
“Master Garrow’s men have forty gallons of heavy-duty turpentine from the dye-works,” Vane said. His voice dropped into the quiet, terrifying rhythm of a naval commodore laying a minefield. “And Gang Boss Moros’s canal smugglers know the drainage under-road drains beneath the coal silos like the backs of their hands.”
Vane tapped the scarlet Morocco register tucked beneath his arm.
“At twenty minutes to midnight,” the merchant whispered, “we ignite the coal dust in Silo Three. The air-powered explosion will vent through the gas mains, blinding the narrow high walkway gunners and plunging the platform into total darkness for four minutes. During those four minutes, Garrow’s men attack the junction switch with crowbars and locomotive grease, wedging the track points open.”
Ren pulled the heavy sheepskin collar of his coat up against the biting sleet. Beneath his rough wool layers, the gold-silver metal rim of the Speculum pressed like an iron brand against his ribs, pulsing with that strange, low-hum that had not quieted since the attic was stormed.
“And the freight car coupling?” Ren asked, staring down at the greasy, snow-crusted iron links connecting Van Three to the passenger carriages ahead. “Those are three-inch hardened cast-steel pins, locked with high-pressure cotters. A crowbar won’t budge them.”
Vane reached into his hemp apron, producing a small heavy clay vial sealed with dark red sealing wax.
“Ferric-acid etching solvent,” Vane said, tapping the baked-clay bottle with his manicured fingernail. “Old Corley used it to eat through royal lock-plates during the Grain Riots. Pour half an ounce into the grease-cup of the coupling joint, drive the silver tip of your reforged awl into the stress fissure, and trace a Dissolution Injunction. The acid does the chemistry. Your silver metal ring channels the moving shear. In twelve seconds, the coupling will snap like frozen taffy under the engine’s first draw-bar pull.”
Ren nodded slowly. He could picture it in the dark: the exact angle of the pin, the tiny grain boundary of the cast steel, the sudden release of high-pressure tension as sixty tons of rolling freight detached from the engine’s thrust.
“We have one chance at the bogies,” Ren said. “If the alarm sounds before we reach the undercarriage, the narrow high walkway gunners will sweep the ballast with canister.”
“Then we make sure the alarm sounds everywhere at once,” Vane replied.
Vane reached out, gripping Ren’s shoulder with an iron grip that seemed to burn with cold, gold-silver metal fire.
“And while the world is burning on the tracks,” Vane hissed, “you and I slip beneath the freight car bogies, enter Van Three with the counterfeit docket, and sever the decoupling pin.”
Ren reached into his apron, his fingers wrapping around the reforged mammoth ivory awl. The silver metal ring was cold as ice, but the bone burned with living purpose.
“And Julian Voss?” Ren asked.
Vane smiled—a thin, vicious slash of white teeth beneath his silver mustache.
“Julian Voss,” the merchant said softly, “will discover what happens when you sign a contract with a man who has already burned his life to ash.”