Twenty Thousand Leagues Under the Sea Author:Jules Verne Twenty Thousand Leagues Under the Sea. A strange sea monster...faster than any ship, and impenetrable. Bullets and harpoons bounce off its surface. A sea monster, or an underwater vessel? — Through a series of exciting events, three men accidentally become passengers on the Nautilus. They are prisoners of the mysterious Captain Nemo. Like it or n... more »ot, the captives are taken on a fantastic voyage of discovery and adventure... many miles below the ocean's surface.