For a moment I thought it was the lava-glow from some volcanic action; but this could not be so. Any volcanic action would surely be down in the hollow and not high among the rocks. What, then, was the alternative? It was wonderful, and yet it must surely be. These ruddy spots must be the reflection of fires within the caves--fires which could only be lit by the hand of man. There were human beings, then, upon the plateau. How gloriously my expedition was justified! Here was news indeed for us to bear back with us to London!
For a long time I lay and watched these red, quivering blotches of light. I suppose they were ten miles off from me, yet even at that distance one could observe how, from time to time, they twinkled or were obscured as someone passed before them. What would I not have given to be able to crawl up to them, to peep in, and to take back some word to my comrades as to the appearance and character of the race who lived in so strange a place! It was out of the question for the moment, and yet surely we could not leave the plateau until we had some definite knowledge upon the point.
Lake Gladys--my own lake--lay like a sheet of quicksilver before me, with a reflected moon shining brightly in the center of it. It was shallow, for in many places I saw low sandbanks protruding above the water. Everywhere upon the still surface I could see signs of life, sometimes mere rings and ripples in the water, sometimes the gleam of a great silver-sided fish in the air, sometimes the arched, slate-colored back of some passing monster. Once upon a yellow sandbank I saw a creature like a huge swan, with a clumsy body and a high, flexible neck, shuffling about upon the margin. Presently it plunged in, and for some time I could see the arched neck and darting head undulating over the water. Then it dived, and I saw it no more.
My attention was soon drawn away from these distant sights and brought back to what was going on at my very feet. Two creatures like large armadillos had come down to the drinking-place, and were squatting at the edge of the water, their long, flexible tongues like red ribbons shooting in and out as they lapped. A huge deer, with branching horns, a magnificent creature which carried itself like a king, came down with its doe and two fawns and drank beside the armadillos. No such deer exist anywhere else upon earth, for the moose or elks which I have seen would hardly have reached its shoulders. Presently it gave a warning snort, and was off with its family among the reeds, while the armadillos also scuttled for shelter. A new-comer, a most monstrous animal, was coming down the path.
For a moment I wondered where I could have seen that ungainly shape, that arched back with triangular fringes along it, that strange bird-like head held close to the ground. Then it came back, to me. It was the stegosaurus--the very creature which Maple White had preserved in his sketch-book, and which had been the first object which arrested the attention of Challenger! There he was--perhaps the very specimen which the American artist had encountered. The ground shook beneath his tremendous weight, and his gulpings of water resounded through the still night. For five minutes he was so close to my rock that by stretching out my hand I could have touched the hideous waving hackles upon his back. Then he lumbered away and was lost among the boulders.
Looking at my watch, I saw that it was half-past two o'clock, and high time, therefore, that I started upon my homeward journey. There was no difficulty about the direction in which I should return for all along I had kept the little brook upon my left, and it opened into the central lake within a stone's-throw of the boulder upon which I had been lying. I set off, therefore, in high spirits, for I felt that I had done good work and was bringing back a fine budget of news for my companions. Foremost of all, of course, were the sight of the fiery caves and the certainty that some troglodytic race inhabited them.