Accordingly, having arrived within about thirty feet of the opening in the face of the sculptured rock, the young Englishman looked warily about him and peered into the interior of the cavern to make sure that there was no likelihood of his being attacked unawares; and when at length he had satisfied himself on this head, he laid down his bow and proceeded to arrange his dry moss so that it would kindle readily; then he took his two fire-producing sticks, rubbed them one against the other in the most approved manner, and presently had a little flame which he deftly communicated to the tinder-like moss. When this was fairly ablaze, he ignited the biggest and thickest branch he had with him, and was soon in possession of a brilliantly burning flambeau, holding which in one hand, and his bow and arrow in the other, he at once boldly plunged into the interior of the cavern, glancing keenly about him as he held his torch aloft. The first thing that Phil noticed was that the fetid, charnel-house odour which had before assailed his nostrils was now, for some reason, not nearly so strong as when he had previously stood in the entrance of the cavern; indeed it was scarcely perceptible. The next thing to attract his attention was the fact that the cavern widened out very considerably as it receded into the interior of the rock, and that the floor slightly rose as he walked forward. Then the shimmer of water ahead in the light of the torch caught his eye, and when he had penetrated about fifty feet he suddenly found himself in a vast rock chamber, so large that the light of his torch could scarcely reach its farther extremity or its roof. And there was a peculiarity about this rock chamber which consisted in the fact that the whole of its interior, from wall to wall, was occupied by a pool of water which brimmed to the level of the highest part of the upward sloping entrance passage--nay, it did even more, for it occasionally slopped over and went trickling away in a tiny stream down the passage into the open, thus moistening the soil at the entrance and creating the mud in which Phil had detected the spoor of numerous different kinds of animals. A further circumstance which at once arrested Phil's attention and caused him again to look sharply about him was that the surface of the pool, instead of being glass-smooth, as one would naturally expect water to be in a place completely sheltered from the wind, was considerably agitated, as though some creature of great bulk had recently been swimming in it. Yet, so far as he could observe, he was himself the only living creature in the cavern, and he could see to its farthest extremity pretty clearly, now that his eyes had become accustomed to the comparatively dim light of the torch. Moreover, upon carefully examining the rocky floor upon which he stood, the only wet footprints visible were those of the ape which had recently beaten so precipitate a