Mysterious Island (1961 film) buried, but the rest escape and begin the journey home, vowing to continue Nemo's dream of achieving lasting peace throughout the world. The novel on which the film is based is a sequel to two other novels by Jules Verne, "In Search of the Castaways" (1867) and "Twenty Thousand Leagues Under the Sea" (1870). The first book featured the island, the pirates and a character Tom Ayrton who was marooned on a nearby island. The second book featured Captain Nemo and the "Nautilus" presumed lost in the maelstrom at the end of that novel. In "The Mysterious Island" (1874) after
Twenty Thousand Leagues Under the Sea not to a "depth", as 20,000 leagues (80,000 km) is nearly twice the circumference of the Earth. The greatest depth mentioned in the book is four leagues. The book uses metric leagues, which are four kilometres each. During the year 1866, ships of several nations spot a mysterious sea monster, which some suggest to be a giant narwhal. The United States government assembles an expedition in New York City to find and destroy the monster. Professor Pierre Aronnax, a French marine biologist and narrator of the story, who happens to be in New York at the time, receives a last-minute