Staff Sergeant Benjamin Volk, a troubled but decorated US Airforce Pararescueman, loves his job -- until a mission goes horribly and violently wrong. Now the lone survivor of a massacre, he must contend with the whispers inside his head as unspeakable and terrifying evil relentlessly haunts his every turn in a world he can barely grasp.

A dark and foreboding world in which vile demons, undead abominations, apocalyptic cults, dark magic, and an ancient and secretive cabal of deadly spies are an everyday occurrence. Can he thrive or will the ever present evil and darkness drag him, kicking and screaming, into the pits of hell itself?