Other things, however, were not so funny to Casey as he stood staring down over the vast emptiness.

There was no sign of his pack train, and without it he would be in sorry case indeed.

He thought of the manner in which the tornado had whirled him round and round.

Caught in a different set of gyrations and then borne out from the center--flung out would come nearer it--the burros and William might have been carried in any direction save his own.

Into that gruesome Crevice, for instance.