The Gift — Lisa Lagaly

Rabiah is a simple Clan girl. Giftless, friendless, but talented with weapons. She fights and dresses like a boy. Defeated in battle, she prepares herself for death. It doesn't come. Instead, she finds herself in a position she never imagined tied heart and soul to the enemy. It is not easy being a Princess in a country where Clanspeople are slaves, you've suddenly developed strange powers, and someone will do anything to put his own daughter on the throne, even make deals with demons.