From a High Tower — Mercedes Lackey

Sixteen years after her fabled escape from the tower she was locked away in, Giselle has lived an isolated life. Her adoptive mother is an Earth Master, and uses her expertise to train Giselle in her own Air magic. But when a charming man appears to woo her, Giselle's sheltered view of the world is shattered. For the deceitful stranger is far from a shining knight, a lesson learned after her mother saves Giselle from his attempted assault.

Deciding that she will never be victimized, Giselle enters shooting contests disguised as a young man to discover the whereabouts of her attacker. And when she finds him, she will make him pay.