Princess Harriet Hamsterbone does not like sitting around at home. How’s a princess supposed to have any fun when her parents are constantly reminding her to be careful and act princessly? So when her pal Prince Wilbur needs help finding a stolen hydra egg, Harriet happily takes up the quest. The thief’s trail leads them to a wicked witch and a tall tower, occupied by a rat whose tail has more to it than meets the eye!