As he mused over his plan giving it the final touches, the express for the City of Mexico thundered into the station.

With a grating of brakes, and a squish of steam, the heavy train sobbed itself to a stop, the engine dropping from the fire-box a stream of glowing coals between the gleaming steel rails, and blowing forth steam from the exhaust.

“Here’s my train,” thought Loring. “It looks very comfortable.”

He slipped his pipe into his pocket, and stepping back into a shadowy corner, awaited his opportunity.

From the platform arose an irregular murmur of voices, such as always attends the arrival of a train at night. That murmur which, to the passengers lying half awake, sounds so far away, and unreal! He heard the bang and thump of trunks being thrown out of the baggage car. A party of tourists, weighted down with hand-luggage, hurried by him. Even as he thought, the white-jacketed porters stood with their little steps alternately at the right and left ends of their respective cars, so that in the long train there were three unguarded platforms.

A man was rapidly testing and oiling the car wheels. His torch flared yellow-red against the greasy brown of the trucks, and made queer shadows dance on the red varnished surface of the cars.

Stephen tried to make out the name of the car nearest to him. The first four gilt letters showed clearly in the torchlight: “ELDO”—The man with the torch moved nearer. “ELDORADO,” spelled Stephen. “Perhaps the name is a delicate hint to me from Fate.”

The inspector passed on up the train, hitting ringing blows on the wheels with his short, heavy mallet. He tested the last car, then stepped back from the train, swinging his torch around his head as a signal to the engineer.

“It must be now or never,” thought Loring. But which platform to try! At that instant, from the car opposite him, came a great puff of white steam, for a moment almost obscuring the steps from view.

Loring darted forward, and jumped upon the train platform. Anxiously he thrust his shoulder against the vestibule door. It was unlocked. As he gained the vestibule, the car couplings tightened with a jerk, and the train clumsily started. He took a hasty glance down the interior of the car. At the opposite end the porter was closing the vestibule door. The aisle was clear.