The Sign of the Four and play adaptations insure this book: The Sign of the Four was also adapted for radio by Bert Coules in 1989 as part of BBC Radio 4's complete audio Sherlock Holmes, with Clive Merrison as Holmes, Michael Williams as Watson, and featuring Brian Blessed as Jonathan Small. The Sign of the Four The Sign of the Four (1890), also called The Sign of Four, is the second novel featuring Sherlock Holmes written by Sir Arthur Conan Doyle. Doyle wrote four novels and 56 short stories featuring the fictional detective. The story is set in 1888. "The Sign of the Four"
Sherlock Holmes (play) to "Elementary, my dear fellow! Elementary!" (in the final 1935 text; Act II Scene II). The 1976 Samuel French reprint has the phrase "Oh, this is elementary, my dear Watson" (Act I Scene III; though the scene has been placed in a different act, it is the same scene as above), but it is unclear which of the earlier versions is the basis of this reprint. It was also Gillette who introduced the famous curved pipe as a trademark Holmes prop. Sherlock Holmes (play) Sherlock Holmes is a four-act play by William Gillette and Sir Arthur Conan Doyle, based on