Tarzan’s curiosity was aroused and also his inherent jungle caution. One must know his jungle well to survive long the jungle, and if one would know it well he must let no unusual occurrence or circumstance go unexplained. And so it was that Tarzan set out upon the back track of Bara for the purpose of ascertaining, if possible, the nature of Bara’s slayer. The bloody spoor was easily followed and the ape-man wondered why it was that the hunter had not tracked and overtaken his quarry, which had evidently been dead since the previous day. He found that Bara had traveled 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 not the only carnivore hunting the district that night. The coughing grunt of a lion close by apprised him of it first, and then, from the distance, the deep roar of another. But of what moment was it to the ape-man that others hunted? It would not be the first time that he had pitted his cunning, his strength, and his agility against the other hunters of his savage world—both man and beast. And so it was that Tarzan made his kill at last, snatching it almost from under the nose of a disappointed and infuriated lion—a fat antelope that the latter had marked as his own. Throwing his kill to his shoulder almost in the path of the charging Numa, the ape-man swung lightly to the lower terraces and with a taunting laugh for the infuriated cat, vanished noiselessly into the night. He found the camp and his hungry Waziri without trouble, and so great was their faith in him that they not for a moment doubted but that he would return with meat for them.