The phantom thief makes his way on board the ship where the black pearl is on. To make things hard harder for the thief, everyone on the ship was given a fake black pearl but nobody knows if they are wearing the real one. The phantom thief figures out who has the real pearl. Conan then confronts the phantom thief, who was disguised as Rachel (Ran Mouri). The phantom thief gets away but gives Conan back the real pearl and Rachel (Ran Mouri) is found sleeping in one of the life boats.