About The Holy Dark:
Jordan's demonic opposition grows more desperate with each coin found, so they call on the ultimate reinforcement: Moloch, the Archdemon of War. Moloch puts out a contract on Jordan as well as her estranged husband, the Archangel Michael. Now Jordan and Michael will have to find a way to work together to survive against impossible odds and stop Moloch's plan, or else he’ll wage a war that will wipe out the human race.
The Holy Dark is the third novel and fourth book in the Black Parade series, following The Black Parade, The Deadly Seven: Stories from The Black Parade series, and She Who Fights Monsters.