A Study in Scarlet, originally titled A Tangled Skein and published in 1887, was the first story to ever feature Detective Sherlock Homes and his trusty sidekick Watson. Written by Sir Arthur Conan Doyle in less than three weeks when he was 27, it would eventually become one of the most famous Holmes stories written, and was one of only four full-length novels starring the detective. A Study in Scarlet was also the first novel to feature a magnifying glass as a detective's tool. Scottish surgeon and political activist SIR ARTHUR CONAN DOYLE (1859-1930) turned his passions into stories and novels, producing fiction and nonfiction works sometimes controversial (The Great Boer War, 1900), sometimes fanciful (The Coming of the Fairies, 1922), and sometimes legendary (The Adventures of Sherlock Holmes, 1892).