"To Omaha?"

"What difference is it to you? Do you know Plum Creek?"

"No," replied Mr. Fogg.

"It's the next station. The train will be there in an hour, and will stop there ten minutes. In ten minutes several revolver shots could be exchanged."

"Very well," said Mr. Fogg. "I will stop at Plum Creek."

"And I guess you'll stay there too," added the American insolently.

"Who knows?" replied Mr. Fogg, returning to the car as coolly as usual. He began to reassure Aouda, telling her that blusterers were never to be feared, and begged Fix to be his second at the approaching duel, a request which the detective could not refuse. Mr. Fogg resumed the interrupted game with perfect calmness.

At eleven o'clock the locomotive's whistle announced that they were approaching Plum Creek station. Mr. Fogg rose, and, followed by Fix, went out upon the platform. Passepartout accompanied him, carrying a pair of revolvers. Aouda remained in the car, as pale as death.

The door of the next car opened, and Colonel Proctor appeared on the platform, attended by a Yankee of his own stamp as his second. But just as the combatants were about to step from the train, the conductor hurried up, and shouted, "You can't get off, gentlemen!"

"Why not?" asked the colonel.