far, and the sun was already low in the west before Tarzan came upon the first indications of the slayer of the animal. These were in the nature of footprints that filled him with quite as much surprise as had the arrow. He examined them carefully, and, stooping low, even sniffed at them with his sensitive nostrils. Improbable, nay impossible though it seemed, the naked footprints were those of a white man—a large man, probably as large as Tarzan himself. As the foster-son of Kala stood gazing upon the spoor of the mysterious stranger he ran the fingers of one hand through his thick, black hair in a characteristic gesture indicative of deep puzzlement.
What naked white man could there be in Tarzan's jungle who slew Tarzan's game with the pretty arrow of an archery club? It was incredible that there should be such a one, and yet there recurred to the ape-man's mind the vague rumors that he had heard weeks before. Determined to solve the mystery he set out now upon the trail of the stranger—an erratic trail which wound about through the jungle, apparently aimlessly, prompted, Tarzan guessed, by the ignorance of an inexperienced hunter. But night fell before he had arrived at a solution of the riddle, and it was pitch dark as the ape-man turned his steps toward camp.
He knew that his Waziri would be expecting meat and it was not Tarzan's intention to disappoint them, though he then discovered that he was
