practically within his clutches. The idea that the harmless clicking of the hammer had frightened him was too ridiculous to entertain. However, we had not long to wait before we could at least guess at the cause of the diversion, for from without came mingled growls and roars and the sound of great bodies thrashing about until the earth shook. The bear had been attacked in the rear by some other mighty beast, and the two were now locked in a titanic struggle for supremacy. With brief respites, during which we could hear the labored breathing of the contestants, the battle continued for the better part of an hour until the sounds of combat grew gradually less and finally ceased entirely.
At Ajor's suggestion, made by signs and a few of the words we knew in common, I moved the fire directly to the entrance to the cave so that a beast would have to pass directly through the flames to reach us, and then we sat and waited for the victor of the battle to come and claim his reward; but though we sat for a long time with our eyes glued to the opening, we saw no sign of any beast.
At last I signed to Ajor to lie down, for I knew that she must have sleep, and I sat on guard until nearly morning, when the girl awoke and insisted that I take some rest; nor would she be denied, but dragged me down as she laughingly menaced me with her knife.
CHAPTER III
WHEN I awoke, it was daylight, and I found Ajor squatting before a fine bed of coals roasting a large piece of antelope-meat. Believe me, the sight of the new day and the delicious odor of the cooking meat filled me with renewed happiness and hope that had been all but expunged by the experience of the previous night; and perhaps the slender figure of the bright-faced girl proved also a potent restorative. She looked up and smiled at me, showing those perfect teeth, and dimpling with evident happiness—the most adorable picture that I had ever seen. I recall that it was then I first regretted that she was only a little untutored savage and so far beneath me in the scale of evolution.
Her first act was to beckon me to follow her outside, and there she pointed to the explanation of our rescue from the bear—a huge saber-tooth tiger, its fine coat and its flesh torn to ribbons, lying dead a few paces from our cave, and beside it, equally mangled, and disemboweled, was the carcass of a huge cave-bear. To have had one's life saved by a saber-tooth tiger, and in the twentieth century into the bargain, was an experience that was to say the least unique; but it had happened—I had the proof of it before my eyes.
So enormous are the great carnivora of Caspak that they must feed perpetually to support their giant thews, and the result is that they will eat the meat of any other creature and will attack anything that comes within their ken, no matter how formidable the quarry. From later observation—I mention this as worthy the attention of paleontologists and naturalists—I came to the conclusion that such creatures as the cave-bear, the cave-lion and the saber-tooth tiger, as well as the larger carnivoous reptiles make, ordinarily, two kills a day—one in the morning and one after nightfall. They immediately devour the entire carcass, after which they lie up and sleep for a few hours. Fortunately their numbers are comparatively few; otherwise there would be no other life within Caspak. It is their very voracity that keeps their numbers down to a point which permits other forms of life to persist, for even in the season of love the great males often turn upon their own mates and devour them, while both males and females occasionally devour their young. How the human and semi-human races have managed to survive during all the countless ages that these conditions must have existed here is quite beyond me.
After breakfast Ajor and I set out once more upon our northward journey. We had gone but a little distance when we were attacked by a number of apelike creatures armed with clubs. They seemed a little higher in the scale than the Alus. Ajor told me they were Bo-lu, or club-men. A revolver-shot killed one and scattered the others; but several times later during the day we were menaced by them, until we had left their country and entered that of the Sto-lu, or hatchet-men. These people were less hairy and more manlike; nor did they appear so anxious to destroy us. Rather they were curious, and followed us for some distance examining us most closely. They called out to us, and Ajor answered them; but her replies did not seem to satisfy them, for they gradually became threatening, and I think they were preparing to attack us when a small deer that had been hiding in some low brush suddenly broke cover and dashed across our front. We needed meat, for it was near one o'clock and I was getting hungry; so I drew my pistol and with a single shot dropped the creature in its tracks. The effect upon the Sto-lu was electrical. Immediately they abandoned all thoughts of war, and turning, scampered for the forest which fringed our path.
That night we spent beside a little stream in the Sto-lu country. We found a tiny cave in the rock bank, so hidden away that only chance could direct a beast of prey to it, and after we had eaten of the deer-meat and some fruit which Ajor gathered, we crawled into the little hole, and with sticks and stones which I had gathered for the purpose, I erected a strong barricade inside the entrance. Nothing could reach us without swimming and wading through the stream, and I felt quite secure from attack. Our quarters were rather cramped. The ceiling was so low that we could not stand up, and the floor so narrow that it was with difficulty that we both wedged into it together; but we were very tired, and so we made the most of it; and so great was the feeling of security that I am sure I fell asleep as soon as I had stretched myself beside Ajor.
A Diplodocus
DURING the three days which followed, our progress was exasperatingly slow. I doubt if we made ten miles in the entire three days. The country was hideously savage, so that we were forced to spend hours at a time in hiding from one or another of the great beasts which menaced us continually. There were fewer reptiles; but the quantity of carnivora seemed to have increased,
