When they had at length satisfied their curiosity by exhaustively examining the enormous carcass--which, they agreed, must be that of the identical beast portrayed in the carved pictures on the cliff face, or of one precisely similar--they procured torches, and, having lighted them, proceeded to examine thoroughly the interior of the cavern. In the outer chamber, or that which contained the pool--the surface of which was now perfectly placid and mirrorlike--there was nothing to see beyond what has already been described. After a brief glance round, therefore, they passed over to its far side by means of the rock ledge along the margin of the pool, and entered the tunnel-like passage in which Phil had taken temporary refuge on the previous day. This proved to be about one hundred feet long, and gave access to another chamber of such immense dimensions that, standing just within it, and holding their three torches high above their heads, they were unable to see the opposite wall or the roof. But it was a wonderful cavern, and worth travelling a long distance to see; for upon examination they discovered that its walls, as high up as the light of the torches would enable them to see, were most elaborately sculptured in high relief with figures of men, women, animals, trees, representations of spacious landscapes with buildings, and even the sea, with either the rising or the setting sun partially obscured by clouds. And the remarkable thing about these sculptures was that they were very much more finely and artistically executed than those outside; the representation was much more true to nature; the details of clothing were rendered with the most minute elaboration and exactitude; and there was also evidence of a knowledge and understanding of perspective. For the first quarter of an hour or so of their inspection they were unable to obtain any clue to the purpose to which this enormous chamber had originally been put, or the reason which could induce a person--or, rather, a number of persons, for no single individual could possibly have produced the whole of that work, even if he had devoted an entire lifetime to it--to spend time in laboriously executing such work in a situation where it would seem that it could be seldom or never seen. But by and by, when the explorers arrived at the far end of the chamber, they saw that it was neither more nor less than an immense temple; for there, in the very centre of the wall, was a most beautifully and elaborately sculptured niche, within which was enshrined a lifesize figure, in black marble, of a man, in the carving of which the unknown sculptor seemed to have reached the very summit of perfection of his art. For with the most scrupulous and precise fidelity he had succeeded in reproducing every minutest detail, the texture and wrinkles of the skin, the finger and toe nails, the course of the veins, and even the curls in the long hair, bushy beard, and drooping moustache.