Polyhymnia is a Muse from the South Village, Castle Roogna, then Mount Parnassus in Xanth. She was mentioned in Currant Events.
Polyhymnia was delivered in 915. She is the daughter of Mnem and Ebnez and sister of Calliope, Euterpe, Melpomene, Terpsichore, Erato, Urania, Thalia, and Clio. She was 22 years old when she moved to Mount Parnassus and became the Muse of Sacred Poetry in 937 and stopped aging. She is 22 years old.
Polyhymnia and her sisters were sent to Castle Roogna in 917 by her father to protect them from the Twelfth Wave.