The Sign of Four. Detective novella 12+

📒 Sherlock Holmes is a fictional detective created by Scottish author and physician Sir Arthur Conan Doyle. A London-based "consulting detective" whose abilities border on the fantastic, Holmes is known for his astute logical reasoning, his ability to adopt almost any disguise and his use of forensic science to solve difficult cases.The Sign of the Four, also called The Sign of Four, is the second book featuring Sherlock Holmes.