All this was natural; but there came a moment, not far from midnight, when there remained no doubt that some person or animal was moving stealthily through the grove, near where he was standing. It will be remembered that his position was such that the trunk of the large oak acted as an impenetrable screen between him and the camp-fire, which was burning so vigorously that its rays penetrated to a greater or less degree beyond him. Thus he could see anything moving within the circle of illumination, while he was as invisible to the keenest-eyed warrior as if the night was without a ray of light. The first warning was through the sense of hearing. He had been deceived so many times that he suspected his fancy was playing with him again, but the faint _tip, tip_ continued until such explanation was amiss. "It is an Indian or a wild beast," was his belief. The next minute he knew that, whatever it was, its position was between him and the outer edge of the grove. Since the ponies were on the opposite side of the fire, Jack was nearer the intruder than either they or his friends, sleeping by the camp-fire. Recalling that his place was the most favorable possible, he remained as motionless as the tree-trunk behind him, and to which he stood close enough to touch by moving his foot a few inches backward. The situation being thus, it followed that if the man or beast continued its advance it must come into sight, while Jack himself was invisible. He therefore held his Winchester ready for instant use and waited. He was standing in this expectant attitude when a remarkable thing took place. The fire, having remained unreplenished for some time, had subsided to a considerable extent, when one of the embers fell apart and caused such a displacement of the burning wood that the light flared up and penetrated with its former vigor beyond the tree which sheltered the sentinel. Jack was as immovable as a statue, his weapon grasped in both hands, when this sudden brightening occurred. He was peering out among the dark trees, in the effort to identify the danger, when he saw the unmistakable figure of an Indian, hardly twenty feet away. The buck had entered the grove with the silence of a shadow, and was making his way to the camp-fire, when betrayed in this singular manner to the watcher. In the reflection of the firelight, his naturally hideous countenance was repulsive to the last degree. The features were irregular, with prominent cheek-bones, a huge nose, and a retreating chin. Ugly as nature had made him, he had intensified it himself by daubing black, red and white paint in splashes over the front of his countenance. His coarse, black hair dangled loosely about his shoulders, and a single stained eagle's feather protruded from the crown. It was gathered back of the neck by a thong of some sort, so as to prevent the hair getting in his eyes when there was such imminent need for their use.