In the year 1900, Sir Arthur Conan Doyle was at the height of his success as a qualified doctor, keen sportsman, writer of historical novels, champion of the oppressed and, most notably, the creator of that honorable, fearless, and eminently sensible master-detective Sherlock Holmes. Every new Holmes story was greeted with great anticipation and confidence in the knowledge that, however complex the crime, the supremely intelligent and logical detective would solve it. But in 1916 Conan Doyle surprised his readers by declaring that he believed in spiritualism. And when, in 1922, Doyle published a book in which he professed to believe in fairies, his devotees were nonplussed. How could the creator of the inexorably logical Sherlock Holmes claim to believe in something as vague, esoteric, and unproven as the paranormal? In this fascinating study of the life of the creator of one of the greatest detectives of all time, Dr Andrew Norman traces the origin of Sir Arthur Conan Doyle's strange beliefs. Can it be that Doyle's alcoholic father holds the key to the unanswered questions about his son? What was Doyle's involvement in the notorious 'Cottingley Fairies' affair? By delving into medical records and the writings of Doyle himself, Dr Norman unravels a mystery as exciting as any of the cases embarked upon by the great Sherlock Holmes!