I had noticed that as we traveled northward from the Alus' country the land had gradually risen until we were now several hundred feet above the level of the inland sea. Ajor told me that the Galus country was still higher and considerably colder, which accounted for the scarcity of reptiles. The change in form and kinds of the lower animals was even more marked than the evolutionary stages of man. The diminutive ecca, or small horse, became a rough-coated and sturdy little pony in the Kro-lu country. I saw a greater number of small lions and tigers, though many of the huge ones still persisted, while the woolly mammoth was more in evidence, as were several varieties of the Labyrinthadonta. These creatures, from which God save me, I should have expected to find further south; but for some unaccountable reason they gain their greatest bulk in the Kro-lu and Galu countries, though fortunately they are rare. I rather imagine that they are a very early life which is rapidly nearing extinction in Caspak, though wherever they are found, they constitute a menace to all forms of life. It was mid-afternoon when To-mar and So-al bade us good-bye. We were not far from Kro-lu village; in fact, we had approached it much closer than we had intended, and now Ajor and I were to make a detour toward the sea while our companions went directly in search of the Kro-lu chief. Ajor and I had gone perhaps a mile or two and were just about to emerge from a dense wood when I saw that ahead of us which caused me to draw back into concealment, at the same time pushing Ajor behind me. What I saw was a party of Band-lu warriors--large, fierce-appearing men. From the direction of their march I saw that they were returning to their caves, and that if we remained where we were, they would pass without discovering us. Presently Ajor nudged me. "They have a prisoner," she whispered. "He is a Kro-lu." And then I saw him, the first fully developed Kro-lu I had seen. He was a fine-looking savage, tall and straight with a regal carriage. To-mar was a handsome fellow; but this Kro-lu showed plainly in his every physical attribute a higher plane of evolution. While To-mar was just entering the Kro-lu sphere, this man, it seemed to me, must be close indeed to the next stage of his development, which would see him an envied Galu. "They will kill him?" I whispered to Ajor. "The dance of death," she replied, and I shuddered, so recently had I escaped the same fate. It seemed cruel that one who must have passed safely up through all the frightful stages of human evolution within Caspak, should die at the very foot of his goal. I raised my rifle to my shoulder and took careful aim at one of the Band-lu. If I hit him, I would hit two, for another was directly behind the first. Ajor touched my arm. "What would you do?" she asked. "They are all our enemies."