Mare Imbrium is a night mare who became a day mare from the Gourd then Xanth. She was first introduced in Ogre, Ogre.
Mare Imbrium was delivered in 897. She is the girlfriend of Day Stallion, mate of Forrest, and dam of Palus Putredinis. She is 220 years old.
Mare Imbrium was bringing a bad dream to Tandy when Tandy woke up and forced her to take Tandy to the Good Magician's Castle. While she served as King pro tem during the NextWave invasion, she defeated the Horseman and restored the Kings, however, she died when destroying the Horseman's circlet in the Void. She became a Day Mare because she got half a soul from Chem so survived the Void in soul form. She appears as a solid black horse in daylight and as a young woman wearing black in dreams but is dematerialized in darkness. Her name was shortened to Imbri by Smash.
Novels: Ogre, Ogre, Night Mare, Dragon on a Pedestal, Crewel Lye: A Caustic Yarn, Heaven Cent, Isle of View, Question Quest, Demons Don't Dream, Harpy Thyme, Roc and a Hard Place, Yon Ill Wind, Faun and Games, Zombie Lover, Swell Foop, Up in a Heaval, Currant Events, Two to the Fifth