Ogre, Ogre (Xanth Book 5)
Castle Roogna (Xanth Book 3)
Night Mare (Xanth Book 6)
Dragon on a Pedestal (Xanth Book 7)
Source of Magic (Xanth Book 2)
Crewel Lye (Xanth Book 8)
Golem in the Gears (Xanth Book 9)
Vale of the Vole (Xanth Book 10)
Heaven Cent (Xanth Book 11)
A Spell for Chameleon (Original Edition) (Xanth Book 1)