A scourge of grisly murders sweeps the globe, Erin Granger must decipher the truth behind an immortal prophecy foretold in the Blood Gospel, a tome written by Christ and lost for centuries: The shackles of Lucifer have been loosened, and his Chalice remains lost. Erin must again join with Army Sergeant Jordan Stone and Father Rhun Korza to search for the lost treasure. But it has already fallen into the hands of a demon named Legion, before whom even the walls of the Vatican will fall.