The League of Extraordinary Gentlemen is a comic book series co-created by writer Alan Moore and artist Kevin O'Neill which began in 1999. The series spans two six-issue limited series, Volume I, Volume II, and an original graphic novel Black Dossier from the America's Best Comics imprint of DC Comics, as well as a third volume and spin-off trilogy Nemo published by Top Shelf and Knockabout Comics.
According to Moore, the concept behind the series was initially a Justice League of Victorian England but he quickly developed it as an opportunity to merge elements from many works of fiction into one world.
The year is 1898, and Mina Murray is recruited by Campion Bond on behalf of British Intelligence and asked to assemble a league of other extraordinary individuals to protect the interests of the Empire: Captain Nemo, Allan Quatermain, Dr. Jekyll, and Hawley Griffin the Invisible Man. They help stop a gang-war between Fu Manchu and Professor Moriarty, nemesis of Sherlock Holmes. Following this they take part in the events of H. G. Wells's The War of the Worlds. Two members of the League (Mina Murray and Allan Quatermain) achieve immortality, and are next seen in an adventure in 1958. This follows events that take place after the fall of the Big Brother government from Nineteen Eighty Four.