There are 2 books in The Paranormal Casebooks of Sir Arthur Conan Doyle series.
The Paranormal Casebooks of Sir Arthur Conan Doyle series does not have a new book coming out soon. The latest book, The Dead Assassin (Book 2), was published in June 2015.
The first book in The Paranormal Casebooks of Sir Arthur Conan Doyle series, The Revenant of Thraxton Hall, was published in March 2014.
The Paranormal Casebooks of Sir Arthur Conan Doyle series primarily falls into the Historical Mystery and Traditional British genres.