He went insane thanks to the Dark One's counterstrike on saidin and attacked the city of Tzora. The city's Da'shain Aiel confronted him and tried to use their abilities of singing to restore him to sanity. Mondoran merely looked puzzled before putting all ten thousand of them to death. He subsequently destroyed the city, but the Da'shain's sacrifice bought an extra hour for the people of the city to flee. Mondoran then turned the entire city into a solid lake of glass. He is presumed killed in the chaos of the Breaking of the World.