Library of the Dead — Glenn Cooper

Originally published as Secret of the Seventh Son.

Assigned to the high-profile "Doomsday" serial killer case, FBI agent Will Piper is hitting dead end after dead end. The victims seem to have nothing in common: age, background, or even the way they die. All that connects them is a postcard each received in the mail announcing his or her date of death -- all sent from Las Vegas, where a brilliant computer scientist leads a double life. Just when agent Piper finds a credible lead, he's removed from the case. Continuing the investigation on his own, he must outwit a ruthless team of covert operatives from Area 51 protecting the government's greatest secret. From a medieval monastery to a cutting-edge government laboratory, Library of the Dead delivers a richly detailed, thought-provoking exploration of fate, predestination, and the choices we make in life.