Sherlock Holmes is a government official. Mycroft has a unique civil service position as a kind of human database for all aspects of government policy. He lacks Sherlock's interest in physical investigation, however, preferring to spend his time at the Diogenes Club. Holmes says that he first developed his methods of deduction as an undergraduate; his earliest cases, which he pursued as an amateur, came from fellow university students. A meeting with a classmate's father led him to adopt detection as a profession, and he spent several years after university as a consultant before financial difficulties led him to accept John H.
Minor Sherlock Holmes characters Sherlock Holmes and Irene Adler. He appears in two pastiche novels by author John Lescroart, "Son of Holmes" (1986) and "Rasputin's Revenge" (1987). Lupa, a secret agent during the First World War, is strongly implied to be the younger version of fictional detective Nero Wolfe in the mystery series by Rex Stout. Enola Holmes is the younger sister and youngest sibling of Sherlock and Mycroft Holmes. She appears in the series "The Enola Holmes Mysteries" by Nancy Springer and it could be inferred that she appears in the story "The Copper Beeches" as Violet Hunter, however there is not enough