A collection of short stories about Sherlock Holmes, the world's greatest detective. The Memoirs of Sherlock Holmes, Arthur Conan Doyle's second collection of stories featuring the world's greatest detective, includes eleven tales of intrigue that will puzzle all but the most astute of readers. Holmes and Dr. Watson are pulled into a variety of cases across England, ranging from a mystery involving a missing racehorse to their encounter with Holmes's archenemy, the malicious criminal Professor Moriarty.