Xone of Contention is the twenty-third book of the Xanth

Xanth

Xanth is a fantasy world created by author Piers Anthony for his Xanth series of novels, also known as The Magic of Xanth.-History:The name Xanth is in itself an unintentional pun, which matches the playful tone of the books...

 series by Piers Anthony

Piers Anthony

Piers Anthony Dillingham Jacob is an English American writer in the science fiction and fantasy genres, publishing under the name Piers Anthony. He is most famous for his long-running novel series set in the fictional realm of Xanth.Many of his books have appeared on the New York Times Best...

.

Plot introduction

Dug, the Mundane who had had an adventure in Xanth through the Companions of Xanth computer game, is now happily married to Kim. His friend Edsel on the other hand is on the rock with his marriage to Pia, Dug's old girlfriend, who wants a divorce. Edsel, not wanting to lose her strikes a deal with her, they take a two week vacation in Xanth, switching with Nimby and Chlorine who want to learn about Mundania, and if she doesn't change her mind, he won't fight it.