The story of Immortal Snake was inspired by a very old tale, published early in the twentieth century by the mythographer Leo Frobenius. Known as "The Ruin of Kasch," the story describes [insert spoilers here]...so that forever after they would be plagued by barrenness, war, and the hatred of their neighbors. Kasch was an actual place in the ancient world, its location in Africa precisely known. The modern name for the land of Kasch is Darfur.