Worst Case by James Patterson
Michael Bennett Series #3

Someone is kidnapping the teenage children of the wealthiest families in New York's high society. Someone with an agenda Michael Bennett is having trouble figuring out. With the help of a beautiful female agent, Michael is able to start piecing together the puzzle, but will he be in time to save the latest victim and perhaps thousands of others?

I enjoyed this latest installment of the Bennett series and look forward to reading the next, Tick Tock.