"And leave him loose here, with the horses close by?" Bob went on, aghast.

At that Frank laughed a little.

"Well," he said, drily; "so far as the horses are concerned, I reckon our old friend Havasupai will go a long way on foot before he ever tries to steal a promising looking pony again. As long as he lives he'll remember how it feels to get a pair of hoofs fairly planted against his back. So long, Bob. Tell the old fraud he can lie down anywhere he pleases, and share our breakfast in the morning."

"That's the way you rub it in, Frank; returning evil with good," the Kentucky boy remarked. "But since you want me to take him in hand, I'll be the victim, and read his letter of recommendation, though I can already guess what it will say."

The old Moqui had meanwhile succeeded in getting out the paper which he seemed to set so much store by. Looking up, and seeing that Frank had turned away, he offered it to Bob, who took it gravely, and proceeded to hold it so that the light of the little fire would fall upon the writing.

Frank was half way in the tent when he heard his chum give utterance to a shout. He backed out again, and turning, looked hastily, half expecting to see Bob engaged in a tussle with the old Indian.

Nothing of the sort met his gaze. The Moqui was sitting there, staring at Bob, who had straightened up, and was starting to dance around, holding the paper in his extended hand.

"What ails you, Bob?" demanded the other. "Haven't been taken with a sudden pain, after all that venison you stowed away, I hope."

"Come out here, Frank!" called the lad by the fire. "Of all the luck! to think we'd strike such a piece as this! It's rich! It's the finest ever! We go to hunt for clues, and here they come straight to us. Talk to me about the favors of fortune, why, we're in it up to the neck!"

"You seem to be tickled about something, Bob; has that paper any connection with it?" demanded Frank.