Princess Harriet Hamsterbone is bored. Since the local monsters have all retired, Harriet has had a lot of time on her paws. So when a fairy tells Harriet about twelve mice princesses who are cursed to dance all night long, she happily accepts the quest. Armed with a poncho of invisibility, her trusty battle quail, and some surprise help from her pal Prince Wilbur, Harriet sets off. But when she arrives at the Mouse Kingdom, she discovers there's more to the curse than meets the eye, and trying to help is dangerous business...even for a kick-butt princess.