High Quality Content by WIKIPEDIA articles! Xanth is a fictional universe created by author Piers Anthony. It is a magical land most often described as being shaped like the state of Florida. The geography of Xanth is, therefore, very similar to that of Florida. As is typical with the series, many geographical landmarks are puns based on real-world locations. As an example, the With-A-Cookie River in Xanth is roughly parallel with the Withlacoochee River in Florida.