For psychologist Claire Cantwell—code name Cyrene—the stakes couldn't be higher. Tapped for a top-secret mission for the president, the OMEGA covert operative needed the unique expertise of a man with whom she'd shared danger—and her bed.Lethally attractive special ops agent and ultrasuave diplomat Luis Esteban wanted more than Claire was ready to give. Now, with their very survival at stake, Claire has to trust Luis with her life...even if that means surrendering the one thing she vowed never to give: her heart.