Billie uttered a prolonged whistle.

"That does look bad, sure enough," he declared. Then, after a pause: "What's the matter with walking?"

"It's a long ways and the mountains are full of our men."

"Can't you give us a safe passage? You say we have done you a favor by turning these two officers over to you," suggested Donald, indicating with a nod of his head the captain and lieutenant of the train guard who were now held prisoners.

"I'll do the best I can," was the reply, "but you will have to remain with me to-day. We are on scout duty and shall not return to the main body until to-night."

"That'll suit me all right," laughed Billie, "and if you don't mind I think I'll go into the house somewhere and take a nap."

"Bueno," laughed the captain. "You might as well all take a nap. If we have occasion to leave the neighborhood we will call you."

Ten minutes later the three were fast asleep on a pile of Mexican blankets in the best room in the house.

Three hours later they were awakened by a fusillade of shots.

They sprang to their feet and looked around. For just a moment they could not remember where they were. Then they recalled their situation and became on the alert.