The Further Adventures of Sherlock Holmes - Revenge from the Grave von David Stuart Davies

David Stuart Davies is an author, playwright and editor and is regarded as an authority on Sherlock Holmes. His fiction includes six novels featuring his wartime detective Johnny Hawke and six Sherlock Holmes novels - including Sherlock Holmes and the Devil's Promise (2014). He is a committee member of the Crime Writers' Association, editing their monthly publication, Red Herrings, and is a Fellow of the Royal Literary Fund.