Diogenes Club series "Sherlock". The Diogenes Club has appeared, in various forms, in a great many other settings, most of which take as given the Club's connection to the British Secret Service: Diogenes Club The Diogenes Club is a fictional gentleman's club created by Sir Arthur Conan Doyle and featured in several Sherlock Holmes stories, such as "The Greek Interpreter". It seems to have been named after Diogenes the Cynic (although this is never explained in the original stories) and was co-founded by Sherlock's indolent elder brother, Mycroft Holmes. The club is described by Sherlock Holmes in the story "The Adventure of
Walter C. Mycroft Walter C. Mycroft Walter Charles Mycroft (1890 – 14 June 1959) was a British novelist, screenwriter, film producer and director. In the 1920s he was film critic of the London "Evening Standard", and a founder of the London Film Society, before joining the film industry. In 1928 he became Literary Adviser and Scenario Editor at the newly founded studio British International Pictures at Elstree, sometimes working with his friend Alfred Hitchcock. He was by his own account the principal author of Hitchcock's first BIP film "The Ring" (1927), and credited as the author of the original story on which "Champagne"