Nevertheless, he began to rebuild the fire in the furnace; the pressure again mounted, and the locomotive returned, running backwards to Fort Kearney. This it was which was whistling in the mist.

The travellers were glad to see the locomotive resume its place at the head of the train. They could now continue the journey so terribly interrupted.

Aouda, on seeing the locomotive come up, hurried out of the station, and asked the conductor, “Are you going to start?”

“At once, madam.”

“But the prisoners, our unfortunate fellow-travellers — ”

“I cannot interrupt the trip,” replied the conductor. “We are already three hours behind time.”