The classic Mrs. Piggle-Wiggle series has sold millions of copies around the world. Now her niece, Missy, is in charge of curing bad behavior in this middle-grade refresh of a beloved series. Mrs. Piggle-Wiggle has gone away unexpectedly and left her niece, Missy Piggle-Wiggle, in charge of the Upside-Down House. Families in town soon realize that, like her great-aunt, Missy Piggle-Wiggle has inventive cures for all sorts of childhood (mis)behavior: the Whatever Cure and the Just-a-Minute Cure, for instance. What is a stressed-out parent to do? Why, call Missy Piggle-Wiggle, of course!