He was well within hailing distance, though it was evident the stranger in the canoe had not yet discovered his approach, when a black cloud passed over the face of the moon, plunging the sea into darkness, and when the moon again lighted the waters canoe and canoeist had vanished as by magic.
Like a flash, realising what had happened, Bob seized a coil of rope, made one end fast to the stern of his boat, grasped the coil in his right hand, and, tense and expectant, scanned the sea for the reappearance of the unfortunate stranger.
Presently he discovered the submerged canoe directly ahead, and an instant later saw Shad rise to the surface, strike out for it, and catch and cling to the gunwale.
Bob poised himself for the effort, and as he scudded past, measuring the distance to a nicety,
