The Caves of Steel is a novel by Isaac Asimov. It is essentially a detective story, and illustrates an idea Asimov advocated, that science fiction is a flavor that can be applied to any literary genre, rather than a limited genre itself. Specifically, in the book Asimov's Mysteries, he states that he wrote the novel in response to the assertion by editor John W. Campbell that mystery and science fiction were incompatible genres. Campbell had said that the science fiction writer could invent "facts" in his imaginary future that the reader would not know. Asimov countered that there were rules implicit in the art of writing mysteries, and that the clues could be in the plot, even if they were not obvious, or were deliberately obfuscated. He went on to write several science-fiction mysteries in both novel and short-story form, as well as mainstream mysteries such as The Death Dealers and Murder at the ABA, which had elements of science but were not science fiction. The book was first published as a serial in Galaxy Magazine, October to December 1953. A Doubleday hardcover followed in 1954. A television adaptation was made by the BBC and shown in 1964: only a few short excerpts still exist. In June 1989, the book was adapted by Bert Coules as a radio play for the BBC, with Ed Bishop as Elijah Baley and Sam Dastor as R. Daneel Olivaw.