to make detours to avoid native villages and to keep out of sight of the numerous parties of Bolgani that seemed to be moving in all directions through the forest. Late in the afternoon he came out of the hills into full view of the mountains beyond—rough, granite hills they were, whose precipitous peaks arose far above the timber line. Directly before him a well-marked trail led into a canyon, which he could see wound far upward toward the summit. This, then, would be as good a place to commence his investigations as another. And so, seeing that the coast was clear, the ape-man descended from the trees, and taking advantage of the underbrush bordering the trail, made his way silently, yet swiftly, into the hills. For the most part he was compelled to worm his way through thickets, for the trail was in constant use by Gomangani and Bolgani, parties passing up it empty-handed and, returning, bearing blocks of granite. As he advanced more deeply into the hills the heavy underbrush gave way to a lighter growth of scrub, through which he could pass with far greater ease though with considerable more risk of discovery. However, the instinct of the beast that dominated Tarzan's jungle craft permitted him to find cover where another would have been in full view of every enemy. Half way up the mountain the trail passed through a narrow gorge, not more than twenty feet wide and eroded from solid granite cliffs. Here there was no concealment whatsoever, and the ape-man realized
