his head and his sensitive nostrils dilated as he sought for whatever the surrounding air might hold for him.
"I think there are men in this valley," he said presently. "For some time I have been almost positive that we are being watched. But whoever is stalking us is clever beyond words, for it is only the barest suggestion of another presence that I can scent."
La looked about apprehensively and drew close to his side. "I see no one," she said, in a low voice.
"Nor I," he replied. "Nor can I catch any well-defined scent spoor, yet I am positive that someone is following us. Someone or something that trails by scent, and is clever enough to keep its scent from us. It is more than likely that, whatever it is, it is passing through the trees, at a sufficient height to keep its scent spoor always above us. The air is right for that, and even if he were up wind from us we might not catch his scent at all. Wait here, I will make sure," and he swung lightly into the branches of a nearby tree and swarmed upward with the agility of Manu, the monkey. A moment later he descended to the girl's side.
"I was right," he said, "there is someone, or something, not far off. But whether it is man or Mangani I cannot say, for the odor is a strange one to me, suggesting neither, yet both. But two can play at that game. Come!" And he swung the girl to his shoulder and a moment later had
