Two Thwomps are having a competition. To see who is the best smasher. As the competition intensifies the voilent shaking causes a bottle of magic subcon powder to fall from a nearby shelf and break upon impact. The released powder creates a magic door into the world of Subcon. Emerging from this door are Wart and his companion. Bowser enters the room to see what all the racket is about and meets the new visitors. Seizing this opportunity, he lays an evil plan for Mario...
In a letter it says that Mario must come to Mushroom Castle as soon as possible.
