WABI MAKES A STRANGE DISCOVERY Mukoki broke the silence which followed the terrible cry.

With a choking sound, as if some unseen hand were clutching at his throat, he slipped from the rock upon which he was sitting and crouched behind it, his rifle gleaming faintly as he leveled it down the chasm.

There came the warning click of Wabigoon's gun, and the young Indian hunched himself forward until he was no more than an indistinct shadow in the fast-deepening gloom of night.

Only Rod still sat erect.

For a moment his heart seemed to stand still.