From the series:
Nine Kingdoms
Heal and Destroy (Nine Kingdoms Book 1)
About
A thief. A stolen future. A dragon who chose her anyway.
Cass clawed her way to the Academy, where magic made her a healer and a dragon made her whole. Now the mentor she was forbidden to want wants her on a throne—but a queen keeps neither dragon nor magic. Heal and Destroy, the first book in the Nine Kingdoms series, introduces a world where dragons soar, loyalty is currency, and all power comes with a price.