When the Sorcerer's Apprentice visits Isaac in his world, he gives him a choice of several pens and requests he pick one. After he successfully picks the one which indicates he'll be the next Author, the apprentice shows Isaac a magic door that leads to the Enchanted Forest. He decides to follow him through it. ("Operation Mongoose, Part 1") When King Arthur of Camelot becomes obsessed with finding the missing half to Excalibur, his wife, Guinevere, grows concerned for the sake of their marriage. She and Lancelot decide to go on a journey together in an attempt to find the dagger for their king. Their journey takes them to the Vault of the Dark One, which they enter and eventually pass through a magic door that takes them to a Jungle Dimension where the dagger is hidden behind a protective