A Traitor in Skyhold (Mage Errant, #3)

Hugh and his friends have, to his great displeasure, become the center of attention among the student body at Skyhold. It turns out that surviving the depths of the labyrinth and helping stop a coup both tend to attract notice. If Hugh had his way, he'd happily go back to being just another anonymous student. He has more than enough to deal with already as he starts his second year, between his crushing load of schoolwork, training as a prospective candidate to the Librarians Errant, and navigating a long distance relationship.

Oh, and the fact that Hugh and company have been dragged into trying to catch a traitor on the Skyhold Council doesn't make life any easier. Nor does it help that the traitor is working with the demon Bakori, who lurks in the depths of the labyrinth below Skyhold, waiting for his chance at revenge.