It was a long-drawn, far-away call.

"That's Tad," said Nance. "We'd better gather up our belongings and get up to the break in the trail."

The guide answered the call by a similar "whoo-oo," after which all began climbing cautiously. In the darkness it was dangerous business, but a torch held in the hands of Jim Nance aided them materially. Far up on the side of the Canyon they could see three flickering points of light.

"It's the kid. He's got somebody with him. I thought he'd do that.
He's a wise one," chuckled the guide.

The climb was made in safety. The party ar rived at the base at last, the boys shouting joyously as they saw Tad waving a torch at them. At least they supposed it was Tad.

"What do you think about waiting until daylight for the climb?" shouted
Butler.

"I'll see what they say," answered Nance. "What about it, gentlemen?"

"I think it perhaps would be safer." This from the Professor.

"What, spend another night in this hole?" demanded Stacy. "No, sirree."

"Please let us go on up, Professor," begged Walter.