Since her husband's death, British Secret Intelligence Service agent Natalie Major has buried herself in work. In trouble on an assignment, she calls her husband's former employer, Corbett Lazlo of the Lazlo Agency, for help. Who does he send? Her "dead" husband, Sean McGregor. As they try to outfox an enemy, Natalie wants to unravel the mystery of why he let her mourn him for two years. Karen Whiddon's Bulletproof Marriage (3), the latest in the Mission: Impassioned series, doesn't seamlessly transition from the previous story, so it may take time to get oriented, but once readers do, the action moves at a blistering pace. Natalie and Sean are an intriguing pair as they battle outside forces and each other in an attempt to put their shattered relationship back together.