Abruzzo, Italy: a young priest suffers the stigmata of the crucifixion. The Vatican, Rome: the Pope calls on Harvard professor Cal Donovan to investigate the truth of the priest's claim. Berlin, Germany: a neo-Nazi organisation believes the priest is the key to an earth-shattering secret. A secret that can be used as a deadly weapon. When the priest is abducted, a perilous race against the clock begins. Only Cal can track down the ruthless organisation and stop it before an apocalyptic catastrophe is unleashed.

Investigator Sloan McPherson finds a frightened vagrant suffering from amnesia living in a Florida swamp—then learns he disappeared from Oregon when he was a teenager. To find out how he ended up three thousand miles from home thirty years later, Sloan enlists the help of two brilliant colleagues. FBI agent Jessica Blackwood and scientist Theo Cray have already made an alarming connection. A female classmate of the Everglades drifter disappeared at the same time, and their high school journals reveal ties to an enigmatic figure they both called Mr. Whisper.

A murderer is on the loose on the streets of New York City: nicknamed the Doomsday Killer, he's claimed six victims in just two weeks, and the city is terrified. Even worse, the police are mystified: the victims have nothing in common, defying all profiling, and all that connects them is that each received a sick postcard in the mail before they died - a postcard that announced their date of death. In desperation, the FBI assigns the case to maverick agent Will Piper, once the most accomplished serial-killing expert in the bureau's history, now on a dissolute spiral to retirement.

Milan, Italy, today. It is the most serious crisis that the world has ever faced. Bewildered, young and old, believers and atheists are asking all the same distressing questions: What will they do now that the greatest dream of humanity has turned into a nightmare? What will happen when the countdown clock winds to zero?

Cotton Malone, one-time top operative for the U.S. Justice Department, is enjoying his quiet new life as an antiquarian book dealer in Copenhagen when an unexpected call to action reawakens his hair-trigger instincts—and plunges him back into the cloak-and-dagger world he thought he’d left behind.