Mac isn't surprised at Annie's reaction when he tells her he doesn't want to consummate their marriage yet. He expected it, but he has plans to wait until they arrive at the MacDermot Castle. His cousins, Kade and Aidan, have the honeymoon suite ready for them. But, plans often go awry. The MacDermot keep has been haunted for years and when Annie goes missing Mac fears he may never see her alive again. Annie's screams for Mac's help go unanswered. She has no other choice than to follow the strange man's voice as he leads her down a dark secret passageway. He claims to need her help to keep a promise he made years ago. Will Annie survive to deliver the message this seemingly kind voice wants his descendants to hear?