Later, Graham learns that Mordack is the brother of the wizard Manannan, whom Graham's son, Prince Alexander, turned into a cat in "King's Quest III". Mordack has imprisoned the castle and royal family of Daventry out of revenge, and threatens to feed the royal family to Manannan unless Prince Alexander agrees to restore him to his true form as the spell's nature means that only Prince Alexander as the caster can reverse it. King Graham travels through the land of Serenia, gathering helpful items and information, and eventually makes his way to Mordack's island, and to his castle lair, to save his family from their impending doom.