I had forgotten what little geology I had studied at school—about all that remained was an impression of horror that the illustrations of restored prehistoric monsters had made upon me, and a well-defined belief that any man with a pig’s shank and a vivid imagination could “restore” most any sort of paleolithic monster he saw fit, and take rank as a first class paleontologist. But when I saw these sleek, shiny carcasses shimmering in the sunlight as they emerged from the ocean, shaking their giant heads; when I saw the waters roll from their sinuous bodies in miniature waterfalls as they glided hither and thither, now upon the surface, now half submerged; as I saw them meet, open-mouthed, hissing and snorting, in their titanic and interminable warring I realized how futile is man’s poor, weak imagination by comparison with Nature’s incredible genius. And Perry! He was absolutely flabbergasted. He said so himself. “David,” he remarked, after we had marched for a long time beside that awful sea. “David, I used to teach geology, and I thought that I believed what I taught; but now I see that I did not believe it—that it is impossible for man to believe such things as these unless he sees them with his own eyes. We take things for granted, perhaps, because we are told them over and over again, and have no way of disproving them—like religions, for example; but we don’t believe them, we only think we do. If you ever get back to the outer world you will find that the geologists and paleontologists will be the first to set you down a liar, for they know that no such creatures as they restore ever existed. It is all right to IMAGINE them as existing in an equally imaginary epoch—but now? poof!” At the next halt Hooja the Sly One managed to find enough slack chain to permit him to worm himself back quite close to Dian. We were all standing, and as he edged near the girl she turned her back upon him in such a truly earthly feminine manner that I could scarce repress a smile; but it was a short-lived smile for on the instant the Sly One’s hand fell upon the girl’s bare arm, jerking her roughly toward him. I was not then familiar with the customs or social ethics which prevailed within Pellucidar; but even so I did not need the appealing look which the girl shot to me from her magnificent eyes to influence my subsequent act. What the Sly One’s intention was I paused not to inquire; but instead, before he could lay hold of her with his other hand, I placed a right to the point of his jaw that felled him in his tracks. A roar of approval went up from those of the other prisoners and the Sagoths who had witnessed the brief drama; not, as I later learned, because I had championed the girl, but for the neat and, to them, astounding method by which I had bested Hooja.