He marks what is his. She was sent to steal from him.Sierra has never been wanted. The king of Lyria’s secret daughter grew up in the servants’ gallery, a stain on a royal name. When Lyria loses the war to the werewolf kingdom of Varelia, she expects to be forgotten.Instead, she is the price of peace.King Aren Valekar is the most feared Alpha in the north. His Voice drives lords to their knees. He kills without ceremony, and he says “mine” without apology. He agreed to marry a human bride only because his councils demanded it.What he does not know is why she was chosen. Her mother’s life is in Lyria’s hands, and every week Sierra must send letters home telling the Chancellor what she sees in the wolf court.“You are afraid.”“Yes.”“Yet you stand.”Aren’s wolf wants to claim her. Lady Isolde, who was meant to be his queen, wants her gone. Her step-siblings want her to fail. And with every lie, Sierra falls a little deeper for the one man she must never love.Because in Varelia, a mate is marked for life.And a mark cannot be taken back.When the truth comes out, will the Alpha forgive the spy who stole his heart, or destroy her?