This is the book where Mark and Stephen's HEA finally feels real. Until now, I had never fully believed in their HEA. And you would think Stephen who is much older than Mark would be the insecure one in the relationship, but no. Mark still thinks sometimes that Stephen will have enough of the drama and danger that follows him and will give up on their relationship. He still feels a bit threatened by Stephen's ex-lover. But Stephen is a tough bastard under his gentle doctor and philanthropist image, he can handle himself, handle Mark and even deal with danger while keeping a remarkable calm facade. I found it incredibly sexy. No wonder ex special ops agent Mark, as young, studly and dangerous as he, believes with certainty, at the end of the book, that he has finally found IT.