During the reign of the Burning Legion, mortals from great lords to lowly peasants who followed demonic ways received power unlike any they had known before. Although this power was ripped away, they are determined to get it back. Many of these power hungry mortals gather secretly to practice the forbidden arts of demonology and to summon demons from the Twisting Nether. They seek to usher in a new era of power at the hands of the Burning Legion.