Lu, M: Midnight Star (The Young Elites book 3)

The thrilling finale to the New York Times bestselling Young Elites series from Marie Lu. There was once a time when darkness shrouded the world, and the darkness had a queen. Adelina Amouteru is done suffering. She's turned her back on those who have betrayed her and achieved the ultimate revenge: victory. Her reign as the White Wolf has been a triumphant one, but the darkness within her has begun to spiral out of control, threatening to destroy everything. When a new danger appears, Adelina must join the Daggers on a perilous quest in order to save herself and preserve her empire. But this uneasy alliance may prove to be the real danger . . .