"Pheneas Speaks" is a collection of spiritual messages and musings by Sir Arthur Conan Doyle, the renowned author of Sherlock Holmes stories. The book is presented as a series of communications from the spirit of Pheneas, a deceased friend of Doyle. Through these messages, Doyle explores topics such as life after death, the nature of the spirit world, and the continuity of consciousness. "Pheneas Speaks" offers a fascinating glimpse into Doyle's interest in spiritualism and his beliefs in the survival of the soul. It remains a significant work in the genre of spiritual and psychic literature.