When an unexpected sacrifice turns Allie's world on its head, she discovers her true function within the Asgardian world. Her new purpose has much higher stakes-and significantly bigger dangers-than she ever could have imagined. And as the Goddess of Night unleashes an unparalleled wave of fury across the realms, Allie's dream of a peaceful future with her favorite protector all but disappears. Nott's determined to control Midgard. But Allie has more to fight for than ever before, and she's determined to end the Night War . . . no matter what it costs her.