Something of a desperado the man might be under ordinary conditions; but just then, when facing death, he proved very tame indeed.

"I reckon I can, Joe, if that tottering rock up there only holds off long enough. Let's hope it will. Now, do just what I tell you; and when I say pull, again, get busy for all you're worth!"

While Frank was talking he had been manipulating the foot of the Mexican, who had worked so long on American ranches that he had lost much of his national ways, though retaining a few of the characteristics of dress that always distinguish his kind.

Frank himself was not wasting time. He did not like the looks of that over-hanging rock any too well. It seemed to be about ready to crash down, and when it did come the result would be disastrous to anything human caught underneath; for it surely weighed many tons.

"Now, draw easily at first, and then increase gradually," Frank said. "I'll hold onto the foot, and keep it in this position. I think that's the way it first slipped into the crack!"

Spanish Joe eagerly obeyed. He groaned several times as he felt his leg hurt, but desperation lent him new determination; for if this attempt failed, as others had done, he believed that he was doomed.

Suddenly the foot came free. Joe fell over on the ground, but his last groan turned into a cry of delight. It was almost comical to see how quickly he rolled over several times, so as to get away from the danger zone.

Frank, turning, clutched his companion, and also drew him back. It was none too soon, it seemed. As if the release of Spanish Joe might have been the signal for the groaning mountain to once again take up its strange action, they felt the quiver with which all the performances. seemed to begin. Then the grumble commenced, rapidly advancing into a fearful stage, until Bob could feel himself trembling violently because the rocks under him were moving.

"There she comes!" cried Frank.

His words were drowned in a deafening crash close by. Had Peg Grant been there he must have believed that the top of the mountain had blown off, and that fire and boiling lava would immediately begin to pour down the sides. But Bob had not forgotten about that swaying rock. And he understood that it had fallen with a crash just at the spot where the three of them stood a minute before.