Step by step the Arab beat back his adversary until the latter’s horse all but trod upon the ape-man, and then a vicious cut clove the black warrior’s skull, and the corpse toppled backward almost upon Tarzan.

As the Abyssinian tumbled from his saddle the possibility of escape which was represented by the riderless horse electrified the ape-man to instant action. Before the frightened beast could gather himself for flight a naked giant was astride his back. A strong hand had grasped his bridle rein, and the surprised Arab discovered a new foe in the saddle of him, whom he had slain.

But this enemy wielded no sword, and his spear and bow remained upon his back. The Arab, recovered from his first surprise, dashed in with raised sword to annihilate this presumptuous stranger. He aimed a mighty blow at the ape-man’s head, a blow which swung harmlessly through thin air as Tarzan ducked from its path, and then the Arab felt the other’s horse brushing his leg, a great arm shot out and encircled his waist, and before he could recover himself he was dragged from his saddle, and forming a shield for his antagonist was borne at a mad run straight through the encircling ranks of his fellows.

Just beyond them he was tossed aside upon the ground, and the last he saw of his strange foeman the latter was galloping off across the plain in the direction of the forest at its farther edge.

For another hour the battle raged nor did it cease until the last of the Abyssinians lay dead upon the ground, or had galloped off toward the north in flight. But a handful of men escaped, among them Abdul Mourak.

The victorious raiders collected about the pile of golden ingots which the Abyssinians had uncovered, and there awaited the return of their leader. Their exultation was slightly tempered by the glimpse they had had of the strange apparition of the naked white man galloping away upon the horse of one of their foemen and carrying a companion who was now among them expatiating upon the superhuman strength of the ape-man. None of them there but was familiar with the name and fame of Tarzan of the Apes, and the fact that they had recognized the white giant as the ferocious enemy of the wrongdoers of the jungle, added to their terror, for they had been assured that Tarzan was dead.

Naturally superstitious, they fully believed that they had seen the disembodied spirit of the dead man, and now they cast fearful glances about them in expectation of the ghost’s early return to the scene of the ruin they had inflicted upon him during their recent raid upon his home, and discussed in affrighted whispers the probable nature of the vengeance which the spirit would inflict upon them should he return to find them in possession of his gold.

As they conversed their terror grew, while from the concealment of the reeds along the river below them a small party of naked, black warriors watched their every move. From the heights beyond the river these black men had heard the noise of the conflict, and creeping warily down to the stream had forded it and advanced through the reeds until they were in a position to watch every move of the combatants.

For a half hour the raiders awaited Achmet Zek’s return, their fear of the earlier return of the ghost of Tarzan constantly undermining their loyalty to and fear of their chief. Finally one among them voiced the desires of all when he announced that he intended riding forth toward the forest in search of Achmet Zek. Instantly every man of them sprang to his mount.

“The gold will be safe here,” cried one. “We have killed the Abyssinians and there are no others to carry it away. Let us ride in search of Achmet Zek!”