Note: The Swamp Boots are required. In the swamp between Hotel Nialliv and the final dungeon, head north to find two neat rows of trees. Search between these trees to find the Mirror of Truth. Head to the Hotel Nialliv and talk to the boy in the top right area. He'll tell you to lift some curses with the Mirror. You must talk to cats and dogs in and around each town AND inn to return them to human form (and the blob in Raejack Village who becomes a human). Once you return all the animals (about six) to human form, talk to the boy in the Hotel Nialliv to receive the Beam Sword.