Our Lady of Darkness (1977) is an urban fantasy novel by American author Fritz Leiber. The novel is distinguished for three elements: the heavily autobiographical elements in the story, the use of Jungian psychology that informs the narrative, and its detailed description of "Megapolisomancy", a fictional occult science. It was originally published in shorter form as "The Pale Brown Thing" (Magazine of Fantasy and Science Fiction, January/February 1977). Source: Wikipedia (en)