At a turning of the trail he came in sight of her again upon another straight stretch. His spear hand went far back, the muscles rolled, lightning-like, beneath the sleek hide. Out shot the arm, and the spear sped toward Kala.

A poor cast. It but grazed her side.

With a cry of rage and pain the she-ape turned upon her tormentor. In an instant the trees were crashing beneath the weight of her hurrying fellows, swinging rapidly toward the scene of trouble in answer to Kala’s scream.

As she charged, Kulonga unslung his bow and fitted an arrow with almost unthinkable quickness. Drawing the shaft far back he drove the poisoned missile straight into the heart of the great anthropoid.

With a horrid scream Kala plunged forward upon her face before the astonished members of her tribe.

Roaring and shrieking the apes dashed toward Kulonga, but that wary savage was fleeing down the trail like a frightened antelope.

He knew something of the ferocity of these wild, hairy men, and his one desire was to put as many miles between himself and them as he possibly could.

They followed him, racing through the trees, for a long distance, but finally one by one they abandoned the chase and returned to the scene of the tragedy.

None of them had ever seen a man before, other than Tarzan, and so they wondered vaguely what strange manner of creature it might be that had invaded their jungle.

On the far beach by the little cabin Tarzan heard the faint echoes of the conflict and knowing that something was seriously amiss among the tribe he hastened rapidly toward the direction of the sound.