Set in the Dark Ages of the DC Universe, a barbarian horde is massing to crush civilization. It's fallen to Madame Xanadu and Jason Blood, the man with a monster inside him, to stand in their way - though the demon Etrigan has no interest in protecting anyone or anything other than himself! It'll take more than their own power to stop an army fueled by bloodlust and dark sorcery, and some very surprising heroes - and villains - will have no choice but to join the fray! Little in the universe is left to coincidence, so when seven strangers - including several immortals, a demon, and an Amazon - are brought together to defend the realm, those chosen are not there by accident. These Demon's Knights, as they were called, were first needed to defeat Mordru and the Questing Queen in the village of Little Spring. Soon, their adventures would lead them into conflict with the great Wizard Merlin and even Lucifer himself. The questions remains - why were these strangers collected? Several of their members, including Vandal Savage. Etrigan and Madame Xanadu, appear to exist centuries later in modern times. If this is true, are they still acting out their mission? And what of their connections to the modern-day group known as Stormwatch? What is history trying to tell us about these Demon Knights?