Sitting around a quiet castle is Princess Harriet Hamsterbone's absolute worst nightmare. Her royal parents are constantly begging her to be careful and act like a proper, delicate princess, but Harriet would much rather be out fighting monsters. So when her good friend Prince Wilbur desperately needs help tracking down a stolen hydra egg, Harriet practically leaps at the chance for a brand new quest. The dangerous trail of clues leads them straight to a sinister wicked witch and a strangely tall, isolated tower in the woods. Inside the tower, they discover a mysterious rat with a magical tail that holds some very surprising secrets. To secure the missing egg and save the day, Harriet must outsmart the witch and solve the puzzle of the towering prison. This uproarious third book in the beloved comic hybrid series turns a classic fairy tale completely inside out. It is an adventurous, laugh out loud story that redefines what it means to be royalty.