The Red Dragon Girl Firethorn Chronicles, Book 3.

A cursed land. A tenacious sorcerer. A dagger-throwing princess out to prove her worth. Princess Melantha is done with court life. After suffering humiliation at her sister's wedding, she's determined to find her place outside palace walls and far away from fickle princes. Hearing rumors of a curse breakable only by a red-haired girl, she says goodbye to her eleven sisters and sets out on her own. But events don't unfold as planned, and she is ca...