Two pixies are double trouble for Violet, Leon, and their fairy friend Sprite; they have to find a way to trick Bogey Bill, a goblin who loves Halloween and scaring people, and Buttercup who has cast a spell on the whole school that has all the children hiccuping uncontrollably--and with the help of a good fairy named Robert B. Gnome they come up with a way to deal with both at once.