"Vingt mille lieues sous les mers" by Jules Verne is a novel published in 1869-1870. When a mysterious sea monster terrorizes the oceans in 1866, Professor Pierre Aronnax joins an expedition to hunt it down. After a violent encounter, he and his companions discover the creature is actually a revolutionary submarine commanded by the enigmatic Captain Nemo. Taken prisoner, they embark on an extraordinary underwater journey around the world, witnessing ocean wonders while uncovering their captor's dark secrets of vengeance. (This is an automatically generated summary.)