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 ern wall of the canyon. Slowly and with many rests he dragged his weakening body upwards. Again and again he slipped back from sheer exhaustion and would have fallen to the floor of the canyon but from merest chance. How long it took him to scale that frightful wall he could not have told, and when at last he dragged himself over the top it was to lie weak and gasping, too spent to rise or even to move a few inches farther from the perilous edge of the chasm.

At last he arose, very slowly and with evident effort gaining his knees first and then staggering to his feet, yet his indomitable will was evidenced by a sudden straightening of his shoulders and a determined shake of his head as he lurched forward on unsteady legs to take up his valiant fight for survival. Ahead he scanned the rough landscape for sign of another canyon which he knew would spell inevitable doom. The western hills rose closer now though weirdly unreal as they seemed to dance in the sunlight as though mocking him with their nearness at the moment that exhaustion was about to render them forever unattainable.

Beyond them he knew must be the fertile hunting grounds of which Manu had told. Even if no canyon intervened, his chances of surmounting even low hills seemed remote should he have the fortune to reach their base; but with another canyon hope was dead. Above him Ska still circled and it seemed to the ape-man that the ill-omened bird hovered ever lower and lower as though reading in that failing