Claim: The Maracot Deep is a Fantasy-Science fiction novel by  Arthur Conan Doyle  and published in 1929 by John Murray (UK) from Doubleday Doran (US) in Hardback and has 310 pages.
Evidence: John Murray (UK)
Doubleday Doran (US) The same year the novel was published in The Maracot Deep and Other Stories from John Murray in London, and was released in the U.S. by Doubleday Books of New York.