Darby the Dragon

Darby is the prince of Dragondale, and one day he finds a magic wand just lying around. Intrigued, he takes it and goes to show it to his big sister. They then have a fight over it and he wishes she was smaller than him. Well, it turns out to be a magic wand, because it grants his wish! Darby has to go on a quest to find the items he needs to restore his sister's size.