Against all odds, the Knights of the Argent Blade have triumphed against an impossibly powerful demon and saved London from being the epicentre of the apocalypse. Now, they'd like nothing more than to lick their wounds, grieve for their fallen and have a little time to recuperate.

But they are not going to have that luxury. An ancient and powerful enemy, one that has been around almost as long as the Order itself, is stepping out of the shadows. They intend to create a devastating plague that will rip apart the barrier separating this world from What Lies Beyond and allow their unholy master and his progeny to lay waste to humanity. To make matters worse, when the Order needs unity more than ever, secrets from the past resurface that threaten to tear them apart.

As Lucy, Gillian, Charles and their fellow Knights struggle to work together and find a way to protect an asset that could be their best hope in the war to come, can they put their grievances to rest before the Blighted Brothers unleash untold death and destruction upon mankind?