Carnacki The Ghost-Finder is a collection of short stories by William Hope Hodgson, all concerning the exploits of the eponymous Thomas Carnacki, an Occult Detective. The original 1913 edition contained six stories, which had been separately published in The Idler magazine over the preceding few years; a 1948 edition added three more. One Carnacki story, "The Horse of the Invisible", was adapted for television in 1971, in the British TV series The Rivals of Sherlock Holmes; Carnacki was played by Donald Pleasence.