Other characters of Xanth

A highly intelligent demon of Xanth who is writing a doctoral thesis on the supremacy of demons over other lifeforms entitled "Fallibilities of Other Intelligent Life in Xanth". He repaid a debt to the Good Magician Humfrey, incurred by seeking information from him on other lifeforms, by serving time in a small vial answering questions for people. After repaying the debt, he stayed in the vial to gain further information. Beauregard met Good Magician Humphrey in demon school, where they became friends and greeted each other with insults. In the book Air Apparent, it is revealed that he works as a tour guide in hell, and has fallen in love with Angela Angel, when their toes accidentally brushed a love spring while they were arguing with each other. Angela later returns in Knot Gneiss trying to find substance so she and Beauregard can be together in Xanth.

A form of coral kept in stasis in preservative fluids in the land of Xanth. Its goal was to prevent the awakening of the Demon X(A/N)^th, but it failed. Many people are held, or have been held, in its preservative fluids for eventual release including (Neo-)Sorceress Vadne, Magician Murphy, and Harold Harpy. The Brain Coral was a main character in the book The Source of Magic.

The wife of the Demon X(A/N)^th and mother of Nimbus. She lives in the Nameless Castle. Her talent is to form poison from water (more like the chlorine used to clean things with). Before she met Demon X(A/N)^th, she was plain, mean, and stupid. She wished to be smart, nice, and beautiful, and Nimby (Demon X(A/N)^th in disguise) changed her. She had only one tear left in her eyes, half a tear in each, and if she was to cry that last tear, she would become blind. In the end she shed the tear when Nimby was set on fire by her horrible parents. Nimby and Chlorine have a son named Nimbus. She has a twin sister named Fluorine, who unfortunately is just as mean and nasty as Chlorine used to be.

The Demon whose extended presence created Xanth's magic. He is constantly at battle with Earth, Jupiter, Neptune, and other Demons who represent the planets in an astral game of gaining recognition. Earth is currently the most recognized one with Xanth coming dead last because nobody seems to believe in it. X(A/N)^th first appears in the second book, The Source of Magic, and is the star of the 20th Xanth book, Yon Ill Wind (as Nimby, a horrendously ugly donkey-headed dragon), and the 23rd, Xone of Contention. He currently enjoys living in the floating castle with his consort Chlorine and son Nimbus. He has also been known to travel in the form of Nimby.

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