"An American frigate tracks down a ship-sinking submarine commanded by the mysterious Captain Nemo." *** "The voyage of the 'Nautilus' permitted Verne to describe the wonders of an undersea world almost totally unknown to the general public of the period. Indebted to literary tradition for his Atlantis, he made his major innovation in having the submarine completely powered by electricity, although the interest in electrical forces goes back to Poe and Shelley. So far as the enigmatic ending is concerned, his readers had to wait for the three-part 'The Mysterious Island' (1874-1875) to learn that Nemo had been the Indian warrior-prince Dakkar, who had been involved in the Sepoy Mutiny of 1857." Anatomy of Wonder 4.