Destined for the Alpha Series by Viola Rivard

Beautiful, intelligent, and skilled at getting what she wants, Harper has set her sights on Shan, the mysterious alpha of the largest shifter pack in the world. An anthropologist by trade and a questioner by nature, she wants to find out who he is and how he's managed to do what no other alpha has―unite the entire shifter population of Appalachia. What she finds is a man that exceeds her wildest expectations... moreBeautiful, intelligent, and skilled at getting what she wants, Harper has set her sights on Shan, the mysterious alpha of the largest shifter pack in the world. An anthropologist by trade and a questioner by nature, she wants to find out who he is and how he's managed to do what no other alpha has―unite the entire shifter population of Appalachia. What she finds is a man that exceeds her wildest expectations. Handsome, brilliant, and unaccustomed to being denied, Shan is soon captivated by Harper, who is every bit as enigmatic as he is. Shan knows there are things Harper isn't telling him. Her life is a carefully constructed facade and for all his cunning, he can't figure her out. As he chips away at her mask, his instincts urge him to claim her as his own. Harper is a full-length novel, approximately 300 pages long. It is part of the Shifters of Appalachia universe. Enjoy Destined as a standalone novel series, or see the author page for a reading order. less

Presented with the possibility of having a true mate, Shan is willing to overlook Harper's deception—mostly. He's certain that there's a wolf inside of her, but bringing it out might be the greatest challenge he's ever faced. 
As their relationship escalates, Shan tightens his control over Harper. Between him and the creature threatening to consume her from within, it seems that everyone knows who she is and what she needs, except for her.