Capt. Nemo is comprised of two Jules Verne books which feature this idealistic and ingenious captain. 20,000 Leagues Under the Sea is a classic science fiction telling the story of Captain Nemo and his submarine Nautilus as seen from the perspective of Professor Pierre Aronnax. The Mysterious Island is a sequel to Verne`s famous Twenty Thousand Leagues Under the Sea and In Search of the Castaways. The story tells the adventures of five Americans on an uncharted island in the South Pacific.