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
Mycroft Holmes of Holmes stories: Mycroft Holmes Mycroft Holmes is a fictional character appearing in stories written by Sir Arthur Conan Doyle. He is the elder brother (by seven years) of detective Sherlock Holmes. He is described as having abilities of deduction and knowledge exceeding even those of his brother, though their practical use is limited by his poor physique and dislike of fieldwork. The character has been adapted in various pieces of literature and media, including television series, movies, radio, and comics. He is also popular in culture, being mentioned by many works, which mostly reference his job, personality, or his