It's Hallowe'en, and the time is right for a little supernatural hocus-pocus for Mary-Kate and Ashley in this great new story.

It's the week before Hallowe'en and Mary-Kate and Ashley visit the travelling carnival that's pulled up next to their school, White Oak Academy. Mary-Kate visits a fortune-teller who gives her some spookily accurate predictions but it turns out that the fortune-teller is getting her information from the girls' rat-fink cousin, Jeremy. Only one thing will satisfy them: Revenge!