Arthur Conan Doyle's master criminologist Sherlock Holmes continues to delight readers around the world more than a century after he first appeared in print (in 1887's A Study in Scarlet). The digital age has only increased his popularity: amid the onslaught of contemporary crime fiction there is something reassuring about Sherlock Holmes. In the hardcover edition of 'Sherlock Holmes: The Ultimate Collection' you will find all four Sherlock Holmes novels: A Study In Scarlet by Arthur Conan Doyle. The Sign of the Four by Arthur Conan Doyle. The Hound of the Baskervilles by Arthur Conan Doyle. The Valley of Fear by Arthur Conan Doyle.