"Then ask the assistant guide," was the stern reply.
"I would, but he is not with the train, and has not been seen since last night."
"Perhaps he got out of sight of the train and couldn't find his way back," sneered the guide.
"Oh no! that boy knows what he is about, and I'll trust him for it."
"Well, yonder is the camp," and Roy Velvet pointed to a little meadow not far distant, through which ran a deep stream, and beyond and overshadowing it, was a range of bold hills.
"It's a pleasant spot indeed, and I guess we'll halt a day or two," said the captain, and he gave orders for the train to encamp.
But suddenly up dashed Billy Cody, mounted upon a large horse no one had ever seen him ride before, and it was evident that he had been riding hard.
"Captain Denham, don't camp there, sir, for you place yourself at the mercy of the renegades and Indians that are dogging your trail," he said hastily.
"I am the guide, boy, and have selected the camp," sternly answered Roy Velvet.
"And you are my prisoner, Roy Velvet," and quicker than a flash the revolver of Buffalo Billy covered his heart.