In Italy’s Abruzzo hills, a young priest bears bleeding wounds on his wrists, as if pierced by nails—the first signs of the stigmata.

Harvard professor Cal Donovan has built a career separating faith from fraud, but when the Vatican summons him to investigate, what he discovers shakes the foundations of everything he believes.

The stigmata may be real.

Before he can uncover the truth, the priest, Giovanni, is abducted from his church in the dead of night by a ruthless neo-Nazi network rooted in Hitler and Himmler’s obsession with occult power.

A mystery Cal was meant to explain becomes something far more dangerous: a sign of a terrifying revelation, with Giovanni himself the key to an earth-shattering secret they plan to weaponize to ignite an apocalyptic catastrophe.

With time running out, Cal must track down Padre Giovanni, decode the secret others are willing to kill for, and stop a plot that could bring about the end of the world.

Perfect for fans of Dan Brown, Steve Berry, and James Rollins—relentless thrillers steeped in Vatican intrigue, ancient secrets, and high-stakes conspiracy.