As I crept along the corridor toward the brighter light I saw later stages of the painted epic—the leave-taking of the race that had dwelt in the nameless city and the valley around for ten million years; the race whose souls shrank from quitting scenes their bodies had known so long where they had settled as nomads in the earth's youth, hewing in the virgin rock those primal shrines at which they had never ceased to worship. Now that the light was better I studied the pictures more closely and, remembering that the strange reptiles must represent the unknown men, pondered upon the customs of the nameless city. Many things were peculiar and inexplicable. The civilization, which included a written alphabet, had seemingly risen to a higher order than those immeasurably later civilizations of Egypt and Chaldea, yet there were curious omissions. I could, for example, find no pictures to represent deaths or funeral customs, save such as were related to wars, violence, and plagues; and I wondered at the reticence shown concerning natural death. It was as though an ideal of immortality had been fostered as a cheering illusion.