Captain Nautilus was a legendary pirate, he hunted down many Guardians of the Ocean Temples in order to help some sea merchants and pirates that were having problems by crossing the sea. Sadly, Nautilus became corrupted by his own power and strength. Many other pirates tried to persuade him to return to his heroic ways, but he insisted that he was the most powerful pirate in the planet thanks to his most precious treasure: "The Nautilus Eye", a mask that helped him to breath under water and control the sea at his will. However, the mask started to deform his face in a slow and painful manner.