1917. The Apocalypse is imminent. It is three years since our first introduction to the brilliant but flawed Catholic church Inquisitor Poldek Tacit, and the world has never needed him more. War, revolution and a relentless tide of inhuman terror is consuming the earth but where is Tacit? As old allies unite in a frantic race to unmask the Antichrist and thwart his plan to bring everything into his power, the Darkest Hand continues to terrorise the innocent while in the Vatican's vaults, long-buried secrets are about to be unveiled, and humanity's chance of escape from the forces of evil hangs by a single thread.