““Many died who drank of it; and in those who lived, the drinking wrought change, subtle, gradual and grisly. In adapting themselves to the changing conditions, they had sunk far below their original level. But the lethal waters altered them even more horribly, from generation to more bestial generation. They who had been winged gods became pinioned demons, with all that remained of their ancestors' vast knowledge distorted and perverted and twisted into ghastly paths. As they had risen higher than mankind might dream, so they sank lower than man's maddest nightmares reach. They died fast, by cannibalism, and horrible feuds fought out in the murk of the midnight jungle. And at last among the lichen-grown ruins of their city only a single shape lurked, a stunted abhorrent perversion of nature.””
