In the midst of it all there flashed suddenly upon him a picture of his devoted mother and the select coterie of intellectual young people with which she had always surrounded him.

Waldo felt a new pang of horror as he tried to realize with what emotions they would look upon him now as he stood upon the face of a towering cliff beside an almost naked girl hurling rocks down upon the heads of hairy men who hopped about, screaming with rage, below him.

It was awful! A great billow of mortification rolled over him.

He turned to cast a look of disapprobation at the shameless young woman behind him—she should not think that he countenanced such coarse and vulgar proceedings. Their eyes met—in hers he saw the sparkle of excitement and the joy of life and such a look of comradeship as he never before had seen in the eyes of another mortal.

Then she pointed excitedly over the edge of the ledge.

Waldo looked.

A great brute of a cave man had crawled, unseen, almost to their refuge.

He was but five feet below them, and at the moment that he looked up Waldo dropped a fifty-pound stone mortar full upon his upturned face.

The young woman emitted a little shriek of joy, and Waldo Emerson Smith-Jones, his face bisected by a broad grin, turned toward her.