Dungeons & Dragons

Dungeon Master sends the children northward to the town of Helix to attend a local dragon-banishment celebration. On the way they meet Merlin in his magnificent sky castle. The wizard offers to make Presto his apprentice, only if the young mage chooses to leave his friends and stay there for the rest of his life. But is Merlin's once-in-a-lifetime offer all that it appears?

The children come across a knight named Sir John, who helps save them when they are being chased by a giant scorpion. When Dungeon Master sends them to battle a beholder in a distant valley, the children decide the knight is the perfect person to accompany them. The only problem is Sir John, in reality, is an utter coward.

The magical weapons the children use run out of power on them. Dungeon Master tells them they can recharge the weapons at the Hall of Bones. Venger learns of the children's difficulties and decides to intervene to see to his own interests.