Tarzan of the Apes, ranging far in search of food, caught at length the welcome scent of Horta, the boar. The man paused and, with a deep and silent inhalation, filled his lungs with air until his great bronzed chest expanded to the full. Already he was tasting the fruits of victory. The red blood coursed through his veins, as every fiber of his being reacted to the exhilaration of the moment—the keen delight of the hunting beast that has scented its quarry. And then swiftly and silently he sped in the direction of his prey.

Presently he came upon it, a young tusker, powerful and agile, his wicked tusks gleaming as he tore bark from a young tree. The ape-man was poised just above him, concealed by the foliage of a great tree.

A vivid flash of lightning broke from the billowing black clouds above. Thunder crashed and boomed. The storm broke, and at the same instant the man launched himself downward upon the back of the unsuspecting boar, in one hand the hunting knife of his long-dead sire.

The weight of the man's body crushed the boar to the earth, and before it could struggle to its feet again, the keen blade had severed its jugular. Its life blood gushing from the wound, the boar sought to rise and turn to fight; but the steel thews of the ape-man dragged it down, and an instant later, with a last convulsive shudder, Horta died.

Leaping to his feet, Tarzan placed a foot upon the carcass of his kill and, raising his face to the heavens, gave voice to the victory cry of the bull-ape.

Faintly to the ears of marching men came the hideous scream. The blacks in the party halted, wide-eyed.

"What the devil was that?" demanded Zveri.

"It sounded like a panther," said Colt.

"That was no panther," said Kitembo. "It was the cry of a bull-ape who has made a kill, or—"

"Or what?" demanded Zveri.