Say Nothing by Brad Parks

Scott Sampson is a federal judge, happily married with six year old twins and living the good life until one day when the bottom drops out with the discovery that someone other than family has picked up the twins from school and he receives the first message. If Scott does not throw cases as the kidnapper wants them bad things will happen to the kids. He risks losing his reputation as he tries to influence the cases in front of him and try to discover who is behind the kidnapping. Terror builds quickly and keeps you moving rapidly through the book imagining the anguish of this family living each day not knowing if you will get a body part in the mail or a request that you can't pull off that will mean your child's execution. Scott soon begins to not trust anyone even his wife Alison and his staff. This is every parent's nightmare and you will keep a close eye on your own kids even after you close the book cover.