The Train Beneath the World

The black train did not climb so much as remember how to fall.

It rose beneath the Alchemist Train with its wheels turning in empty air, a long iron shadow against the pale underside of the continent above. No lamps shone in its windows. No steam escaped its chimneys. Yet every time its engine beat, the rails beneath Oliver’s train trembled as if something enormous had struck them from below.

Oliver kept both hands on the controls. The fuel gauge had no needle now. It showed a black circle, perfect and depthless, where the measure of human feeling ought to have been.

“How far?” Nadia asked from behind him.

“Far enough.”

“That is not a distance.”

“It’s the one I have.”

The Horologist stood beside the firebox, his coat unmoved by the violent ascent. He held a pocket watch open in one hand. Its face contained no numbers, only a single narrow door painted blue.

“Do not look directly at the other train,” he said.

Nadia glanced through the cab window. “Why?”

“Because it is looking back.”

The black train gave a shrill whistle. The sound entered the engine cab without passing through the glass. Oliver felt it in his teeth. On the gauge, the black circle shivered, and a thought that did not belong to him brushed across his mind.

Let us pass.

He nearly released the brake.

Nadia seized his shoulder. “What did you hear?”

“Nothing.”

“You’re a poor liar.”

“I’m an engineer.”

“Then engineer us away from it.”

Oliver pushed the throttle forward. The Alchemist Train surged upward, its carriages groaning behind them. Across the sky, fragments of a former mountain drifted like ships caught in a tide. The track ahead climbed toward the upper continent, but half its rails had already detached from the stone and hung unsupported over the blue abyss.

The black train matched their speed.

Its windows were not dark, Oliver realized. They were filled with scenes. A woman laughing beside a kitchen stove. A boy holding a paper crown. Two soldiers embracing before a battle. The images flickered past, each one bright with an emotion so sharp Oliver could almost taste it.

Then the scenes changed.

A funeral beneath red rain. A child calling for a mother who would not answer. A room where someone had waited years beside an unopened door.

The fuel gauge remained black, but the engine drank deeply.

Oliver’s throat tightened. “It’s feeding on us.”

“No,” said the Horologist. “It is reminding you.”

“Of what?”

“Of what you paid.”

Nadia looked from the window to the Horologist. “You know that train.”

“I know its arrival.”

“You said it was a threat.”

“I said it was approaching.”

She drew her pistol. The weapon shook only once before she steadied it. “If you’re guiding it, say so now.”

The Horologist turned the watch toward her. The blue door on its face had opened. Behind it lay a tiny moving landscape: a station crowded with figures whose feet did not touch the ground.

“I am guiding the schedule,” he said. “Not the trains.”

A violent jolt threw Nadia against the wall. Oliver caught her before she struck the brass gauges. Beneath his hands, the core embedded in her ribs flared with cold white light.

The black train screamed.

Every window went blank. Its engine lurched forward, and for the first time it drew alongside them. The two locomotives ran parallel over a gap where the track had vanished. Oliver saw the black engine’s cab through the storm of sparks.

Someone sat inside.

It was Oliver.

The other engineer wore his face, though older and hollow-eyed, with silver threaded through his hair. He stared across the distance and lifted one hand to the glass. In his palm was a small brass key.

Nadia saw him too. Her breath stopped.

“What is that?” she whispered.

Oliver could not answer. The other him mouthed three words through the window.

Do not reach it.

Then the black train struck the Alchemist Train.

There was no impact. Instead, the world folded between them. For one impossible second, Oliver stood in both cabs. He smelled coal smoke, rain, and Nadia’s skin. He heard two engines ticking out of time. He saw the black fuel gauge split open like an eye.

Something reached through it.

Not a hand. Not a shadow. A weight.

The weight settled over Nadia’s heart, and her knees buckled. White cracks spread across her skin from the buried core. Oliver grabbed her, but the instant they touched, the gauge sprang to life.

A single word appeared where the black circle had been.

HUNGER.

The Alchemist Train shot forward. The black train dropped away beneath them, falling toward the clouds, but its whistle followed them upward. The upper continent loomed overhead now, its underside threaded with golden roots. At its center stood a tower built upside down, descending from the land into the sky.

The Horologist closed his watch.

“We are nearly there,” he said.

Nadia clutched Oliver’s coat. “Nearly where?”

The Horologist looked at the glowing cracks beneath her ribs, and for the first time his gentleness failed him.

“Where your heart was made,” he said. “And where it was first taught to hunger.”