Bulletproof Marriage Mission: Impassioned Series, Book 4.

Heart-racing romance, breathless suspense Bodyguard Sean McGregor is back from the dead and protecting his own widow in this high-stakes story of romantic suspense by Karen Whiddon Natalie had faced trouble before. As a highly trained agent of the British Secret Intelligence Service, she'd known heartache and passion and fear. But never before had she been pushed into a corner with no way out. Until now... The man the Lazlo Group sent to help...