Fan Casting Sinbad: Legend of the Seven Seas

A pirate named Sinbad and his crew are chasing after a ship carrying the legendary Book of Peace, a mysterious artifact that protects the land from chaos to Syracuse, which he plans to steal and hold for ransom. He runs into his old friend Prince Proteus who is guarding it, despite this, he still plans to steal the book, until Cetus attacks the ship. Sinbad kills the monster but is dragged under water by one of its tentacles. He is saved by Eris, the Greek goddess of discord (chaos, disharmony, bad luck, evil, despair, unhappiness...), who makes a deal with him: in exchange for stealing and giving her the Book of Peace, she will give him whatever he wants if he comes to Tartarus, her realm of chaos, saying "follow that star beyond the horizon."