A young noblewoman gifted with the power of sorcery flees the anti-magic society where she lives and joins up with a band of Venturers, unwittingly taking part in a mission that will ultimately force her to choose sides in a war of magic. Reissue.
This book I got AFTER reading "Light in Exile" when I understood that incredibly-- they were in the same universe. The cover may throw off a lot of serious sci-fi readers-- but the story is deep in interpersonal power struggles. But this one is in First Person.