To save her son—who is suffering from a life-threatening condition caused by an unstable, rare werewolf bloodline—Ava Sterling must track down the mysterious woman with whom the boy's father shared a full-moon night at a high-society banquet five years ago; she needs to obtain that woman's pure-blood stabilizing genes. That woman is now Gu Wan, the heir to a werewolf clan dominating the northern business world; however, plagued by internal family strife and a bloodline curse, she adamantly denies having been the one present that night. Their lives become inextricably linked once more by the child's fate, plunging them into a deadly vortex of family conspiracies and the perilous verification of their bloodlines.
