Along with Atmah, Hafnar is one of the enthralled wizards that keep Morokei trapped in Labyrinthian. The Dragonborn can discover this by listening to the conversations repeated by the psychic impressions that are triggered as they travel through Labyrinthian during the quest The Staff of Magnus, which detail that Girduin, Elvali Veren and Takes-In-Light all die prior to the remaining mages who confront Morokei.