King and Maxwell (book series)
Former Secret Service Agents turned private investigators, Sean King and Michelle Maxwell, return in their most surprising, personal and dangerous case to date. King and Maxwell is the explosive finale to David Baldacci's phenomenal series. King and Maxwell encounter teenager Tyler Wingo when he has just received the tragic news that his soldier father has been killed in Afghanistan. But then Tyler receives an email from his father. Sean and Michelle are hired to solve the mystery, and their investigation leads to deeper, even more troubling questions.