The first warning came as a faint metallic knock beneath the floor.
Almost nobody noticed it.
The guests aboard the Aurora Crown were too busy admiring the mountain scenery, exchanging business cards, and raising crystal glasses to the future of transportation.
The luxury train was climbing through the Arken Pass, carrying politicians, investors, journalists, and industrial leaders toward the World Engineering Summit. Beyond the panoramic windows, snow-covered peaks rose into a darkening sky. Far below, frozen rivers twisted through the valleys like veins of silver.
At the center of the observation carriage stood Victor Hale.
At fifty-one, Victor was one of the most powerful industrialists in Europe. His company manufactured turbines, aircraft engines, medical machinery, and the revolutionary hydrogen system currently pulling the Aurora Crown through the mountains.
The newspapers called it the engine that would change the world.
Victor preferred a simpler description.
“The engine that cannot fail.”
He had said those words less than ten minutes earlier.
Then the metallic knock came again.
This time it was louder.
A glass trembled on a nearby table.
Victor stopped speaking.
The train shuddered beneath his feet.
For one long second, the lights dimmed. The elegant music playing through the carriage speakers faded into silence.
Then the emergency brakes engaged.
Champagne spilled. Chairs slid across the polished floor. Several passengers cried out as the Aurora Crown came to a violent stop.
Outside the windows, there was nothing but snow, darkness, and the narrow steel bridge beneath the train.
The Aurora Crown had stopped halfway across the Skyridge Viaduct.
Victor grabbed the edge of a table and looked toward the conductor.
“What happened?”
The conductor touched the communication device in his ear.
“I don’t know, sir.”
“You don’t know?”
“The engine has entered emergency shutdown.”
“That system was designed to prevent emergency shutdown.”
“Yes, sir.”
“Then restart it.”
The conductor hesitated.
“The control computer is refusing the command.”
A nervous murmur moved through the carriage.
Victor glanced at the passengers. Several journalists were already recording. Investors whispered to one another. A government minister stared through the window at the black ravine below.
Victor forced himself to remain calm.
“Tell the chief engineer to activate the secondary drive.”
The conductor listened to his earpiece again.
His face changed.
“The chief engineer was injured when the train stopped. The medical team is treating him.”
“And the assistant engineer?”
“Locked in the rear control room. The doors have lost power.”
A sharp gust of wind struck the train.
Snow swept across the windows so heavily that the mountains disappeared.
Victor looked at his watch.
The temperature outside was falling rapidly.
“How long will the heating system operate?”
“Approximately forty minutes on emergency power.”
No one spoke after that.
The Aurora Crown was celebrated as the safest train ever built, but safety meant little when hundreds of tons of machinery were stranded on an exposed bridge during a mountain blizzard.
Victor removed his jacket.
“Take me to the engine.”
The conductor started to answer, but a young voice interrupted him.
“The engine isn’t frozen.”
Everyone turned.
A girl stood near the doorway to the service corridor.
She appeared to be thirteen or fourteen years old. Her dark hair had been cut unevenly just below her shoulders. An oversized green coat hung from her thin frame, and melted snow darkened the legs of her worn trousers.
She did not look frightened.
She looked annoyed.
Two security officers rushed toward her.
“How did you get in here?” one demanded.
The girl ignored him and looked directly at Victor.
“Your cooling valve is choking the turbine.”
Victor stared at her.
“What did you say?”
“The knocking started seventeen minutes ago. First every twelve seconds, then every seven. The pressure regulator is trying to compensate, but it can’t.”
One of the investors gave a nervous laugh.
Victor did not.
“How do you know that?”
“Because I listened.”
She tilted her head slightly.
For a moment, the only sounds were the storm and the soft ticking of cooling metal beneath the floor.
“There,” she said.
A dull knock echoed through the train.
“Three seconds between impacts now.”
The conductor looked at Victor.
“Sir, she may be hearing the pressure relay.”
“That is impossible,” Victor said.
The girl folded her arms.
“So is an engine that cannot fail.”
Several passengers exchanged glances.
Victor walked toward her.
“What is your name?”
“Leona Vale.”
“How did you board this train?”
“At the maintenance station.”
“That station was restricted.”