When the ancient prison cracks, the forgotten will rise again.

Mike Quade never asked to be caught in a war of angels, but when tragedy drags him into a hidden world of divine relics and fallen guardians, he becomes witness to a battle for the fate of mankind. Guided by Dominique-a mysterious stranger bound by duty and sacrifice-Mike discovers truths buried and secrets whispered only in the dark.

But fate demands a price, and Mike must face impossible odds as he finds himself embroiled in a battle to stop the Grigori-the ancient Watchers who once defied heaven itself - from rising once more.

One Man. One Angel. And the terror that stands between them.