‘Pheneas Speaks’ is a book written by Arthur Conan Doyle that was first published by
The Psychic Press and Bookshop on 21 march 1927.
The book presents several communications that Conan Doyle had with spirits. In the first part, the spirits are relatives (brother, mother, editor, etc), and in the second part with various spirits including one called Pheneas who brought important revelations.