This is the 28th pun-studded entry in the Xanth series. In the magical Land of Xanth, Good Magician Humfrey has the power to provide the answer to any question, but always demands a service in return. So when Clio, the Muse of History, asks Humfrey to decipher one of her books, he sends her on a perilous quest to save the dragons of Xanth.