The Mysterious Island is a novel by Jules Verne. The novel is a crossover sequel to Verne's famous Twenty Thousand Leagues Under the Sea and In Search of the Castaways, though thematically it is vastly different from those books. The book tells the adventures of five Americans on an uncharted island in the South Pacific. The story begins in the American Civil War, during the siege of Richmond. As famine and death ravage the city, five northern prisoners of war decide to escape by the unusual mea