Love with the Proper Stranger: A Selection from Unstoppable by Suzanne Brockmann

An undercover FBI agent on a dangerous mission finds himself dangerously distracted by a sweet, spirited woman who has no idea his entire identity is a lie. When John's investigation forces him to get close to a ruthless killer, his unexpected connection with Mariah becomes both his greatest temptation and his biggest liability. Torn between duty and desire, he must decide what he's willing to risk—and what he's willing to lose. This high-stakes romantic thriller delivers the perfect blend of suspense and sizzling chemistry, with a hero caught between his dangerous cover and the woman who could undo it all.