Blood Infernal - James Rollins

What price will we pay for true salvation?

As an escalating scourge of grisly murders sweeps the globe, archaeologist Erin Granger must decipher the truth behind an immortal prophecy, one found in the Blood Gospel, a tome written by Christ and lost for centuries. With the Apocalypse looming and the very foundations of our world crumbling, Erin must again join forces with Army sergeant Jordan Stone and Father Rhun Korza to search for a treasure lost for millennia, a prize that has already fallen into the hands of their enemy.

The forces of darkness have crowned a new king, a demon named Legion, who walks this Earth wearing many faces. His reach is beyond measure--even the walls of the Vatican fall before him. To have any hope of saving the world, Erin must uncover the truth behind man's first steps out of the Garden of Eden, an event wrapped in sin and destruction, an act that damned humankind for eternity.