Under Suspicion (Harlequin Intrigue Series #1568)

Two federal agents must crack the secrets hidden deep in the bayou…

Undercover agent Zach Winter vows to expose the truth behind his best friend's death and protect the pregnant widow left behind. But his de facto partner, Maddy Tierney, isn't the average federal-agent-turned-bodyguard—she's too beautiful, too capable and too damn tempting. It isn't until he rescues her from a kidnapping attempt that their relationship goes from uneasy to explosive. With the criminals closing in and time running out, Zach knows he'd put his own life on the line in order to protect a vulnerable widow. And to ensure the safety of the woman he can't imagine saying goodbye to.