Nan OʼTech is a demoness from Ireland in Mundania then Xanth. She was introduced in Fire Sail.
Nan OʼTech was born in 1100. She is a cousin of Georgia OʼTech. She is 17 years old.
Nan OʼTech is a young Demon who is a protege of Xanth, at the suggestion of Selene; teaching assistant to Grossclout; and a friend of Metria. She was tasked to get a F-bomb. She was the third of eleven girls who was wrong for Lydell.