The Sign of Four was the second novel featuring which famous fictional detective, following A Study In Scarlet?
The Sign of Four (2001 film) The Sign of Four (2001) is a Canadian television film directed by Rodney Gibbons and starring Matt Frewer and Kenneth Welsh. The movie is based on Arthur Conan Doyle's second Sherlock Holmes story.
Richard Hull (author) Richard Henry Sampson {'1': ", '2': ", '3': ", '4': "} (16 October 1897 – 1973), known by the pseudonym Richard Hull, was a British writer who became successful as a crime novelist with his first book in 1934.