Captain Nemo and the Underwater City offers Fraser a position at Templemer. This alienates Joab, who helps Fraser and the Baths steal Nautilus II, on condition they leave without bloodshed, and allow the crew to return with the submarine intact. They manage to take the submarine and are followed by Nemo in his submarine. Nemo explains there is fault with the Nautilus II's engines that means the sub could explode. The chase is brief. Unable to match the speed of the escaping submarine, Nemo has Nautilus I sheer away, to try 'going under the reef.' Confused by their pursuers apparently giving up, Fraser asks the Nautilus
Captain Nemo: The Fantastic History of a Dark Genius joins him, but Verne, fearing what might happen, refuses. Nemo volunteers to fight in the Crimean War. While there, he is taken captive by one of his supposed allies, an Ottoman commander named Robur. Robur is engaged in a power-struggle with a rival official, Barbicane. Nemo is forced to design a submarine for use in the Ottoman navy; after many difficulties, it is finally launched, and christened the "Nautilus". Nemo and his fellow slaves use it to kill Robur, but not before their families — including the Turkish wife Nemo had taken and their son — have been killed. Grief-stricken,