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
Sherlock Holmes (2009 film) it out further. Some sequences in the movie were more than suggested by uncredited incidents found in a 1979 novel "Enter the Lion: A Posthumous Memoir of Mycroft Holmes". Lord Blackwood's character was developed as a nod to Victorian interests in spiritualism and the later influence of Aleister Crowley. The producer felt he was "almost clever" pitting Holmes, who has an almost supernatural ability to solve crimes, against a supposedly supernatural villain. The plot point, moreover, nods to the Holmesian tale of "The Hound of the Baskervilles", where a string of seemingly supernatural events is finally explained through intuitive reasoning