Under The Midnight Sky

Esmeray was born as the daughter of Queen Azmeria, but was orphaned when she turned 12 because the Queen already had a daughter, who would become the new queen. Esmeray had vowed to get revenge, and trained to fight for years. One day, she discovers a power deep within her, but vows to never use it again when she hurts her childhood friend. After successfully kidnapping the first princess, the Queen sends assassins to kill her and her friend, and on the brink of death, her power released and she discovered the secret about her origin that would forever change her.