blurb Lyra's world shattered the night Alpha Kieran of Nightbane brought unprovoked war to her doorstep. Her pack was slaughtered and her father was murdered , her home was burnt to ash. She would have died with them— but Kieran had darker plans. To keep her younger brother alive, Lyra is forced into a brutal compromise. Kieran made her Luna , but refuses to give her his mark. Trapped in the enemy Castle, Lyra must survive a scheming rival who was trained to be a Luna , a hostile mother-in-law and the ancient law of the five territories. Kieran was cold , calculating and he was the man she has sworn to hate. But an ancient magic stirs beneath the ruins of her pack , lyra discover a terrifying truth ; her enemy didn't just take her captive to break he. He needs her blood to unlock a dangerous power and the only way to get out of the cage is to survive the monster holding the keys.