“Cerberus left his post, and now the madness locked within Tartarus can no longer be contained. It spreads, filling the empty places around it with the dread of horror, polluting the world one small step at a time. Equestria and the lands beyond lie tainted, their soils vomiting up necromantic horror into the air. From the muck of corruption Equestria is tormented by plague, corpse-horrors and Uncreated abominations. In the shadow of a dying light, the dead hunger… and the dark becomes your ally.”