The Blood Traitor by Lynette Noni

Kiva thought she knew what she wanted-revenge.

But feelings change, people change . . . everything has changed. After what happened at the palace, Kiva is desperate to know if her friends and family are safe, and whether those she wronged can ever forgive her.

But with the kingdoms closer to the brink of war than they've ever been, and Kiva far away from the conflict, more is at stake than her own broken heart.