Dangerous to Hold - Spies, Lies & Lovers, #4

Quiet, small-town girl Amanda Wainright knows she doesn't belong amidst an agency of spies -- even if she is only their secretary. She's horrified to learn a man she loved and trusted turned out to be a traitor and had gotten an agent killed. Even scarier -- some people think she might have been involved in his treachery. Surprisingly, Joshua Carter -- a beautiful, sophisticated man totally out of her league -- is livid that anyone dares suspect her.
He beomes her champion, her protector, and unless she's mistaken, he wants a relationship with her that is much more personal and much more dangerous to her battered heart.