“You’ll go to bed,” ordered Mr. Mackworth, “there’s plenty of outdoor sleepin’ coming to you boys.”

Retiring to their stateroom, the two boys sat for some time observing the beauties of the night scenery through the screens of the window.

“We’ll be at Rexford in an hour,” Frank urged, “and I want to be up and see the limited cut us off and leave us. I like to see what’s doin’ when we get to places.”

“By rights,” added Phil, “we ought to be awake and walk up to the engine and give old Bill—all engineers are named Bill so far as I’ve read—and give ‘Old Bill’ $20.”

“You’re right,” exclaimed Frank. “That’s regulations. We’ll take one of your $20 bills.”

Phil, carried away by the new idea, examined his dwindling roll of money, picked out a clean bill and put it in his vest pocket. Then, for an hour’s sleep, the boys threw themselves on their bunks. Sometime later Frank roused himself, lay for a few moments as if trying to figure out where he was and then sprang up excitedly. All was quiet. The Teton stood as still as a rock. Snapping on the light the lad glanced at his watch. Then he caught Phil by the shoulder.

“Hey there, wake up!” he called in a low voice. As Phil opened his eyes Frank added: “You’ve saved that $20. It’s now two o’clock and ‘Old Bill’ has left us.”

“Huh?” grunted Phil.

“Get up,” whispered Frank. “We’re at Rexford. Let’s get out and have a look at things.”

“Not me,” drawled Phil. “Everything will be there in the morning.” In another moment he was asleep again.