Harvard professor Cal Donovan has built a career separating faith from fraud. But when the Vatican summons him to Italy to examine a young priest in Abruzzo who bears the unmistakable wounds of the crucifixion, Cal is shaken by what he finds. The stigmata may be real. Cal’s investigation is cut short when the priest, Giovanni, is snatched from his church in the dead of night. Suddenly, the wounds are not a miracle to be explained, but a revelation of a terrifying truth. In Berlin, a ruthless neo-Nazi organization is already moving, convinced Giovanni holds the key to an earth-shattering secret, one that can be turned into a weapon capable of triggering an apocalyptic catastrophe. Teaming up with Giovanni’s sister, Irene, Cal plunges into a shadow-world of religious relics, buried history, and modern fanaticism. Each answer raises the stakes. Each step brings enemies closer. And as the clock runs down, Cal must decide what he believes, because if he’s wrong, the cost will not be his reputation. It will be the world. Perfect for fans of Dan Brown’s The Da Vinci Code, Steve Berry’s The Templar Legacy, and James Rollins’ The Doomsday Key, as well as readers who love Vatican intrigue, ancient secrets, and high-stakes conspiracy thrillers.