It had run several miles, when, the fire becoming low for want of fuel, the steam had slackened; and it had finally stopped an hour after, some twenty miles beyond Fort Kearney.

Neither the engineer nor the stoker was dead, and, after remaining for some time in their swoon, had come to themselves.

The train had then stopped.

The engineer, when he found himself in the desert, and the locomotive without cars, understood what had happened.

He could not imagine how the locomotive had become separated from the train; but he did not doubt that the train left behind was in distress.
He did not hesitate what to do.