Special agent Patrick O'Reilly was determined not to let Mackenzie Sloan's good looks sway him from his task. The woman's innocent persona didn't mean she wasn't involved in illegal activities. And after keeping track of her day—and night—for weeks, he'd almost convinced himself his interest was all part of his job.When the case placed Mackenzie in danger, he could no longer deny his duty had turned to desire. He'd lay down his own life to protect this woman. But laying down his embattled heart might be the truest test of his resolve.