Secret Contract (Harlequin Intrigue Series #985)

Agent Nick Tarasov had been tasked with mentoring and protecting newly recruited Carly Jones. Past assignments had proven he was up to the challenge…but Carly was more than he'd bargained for. The beautiful blonde with the secretive past had agreed to this mission with nothing left to lose: track down an international criminal before more people died. But partnering up and spending long nights together was turning their professional relationship much too personal. And when Carly's life was threatened, Nick knew keeping the two separate was vital—for more reasons than he was willing to admit….