They're are many creatures in equestria. Many of them powerful, many more still unknown, some even that have been imprison. There is a creature that is all three.
Follow the tale of this Creature. Zushakon, the God of death, awakens to find...the world he was on has change. And of Twilight Sparkle, as her minds begins to creak from the intensity of what's going around her, that maybe only describe as unspeakable horror.

Waring - For those that don't wish to see MLP characters...well, deal with massive Cthulhu theme things...I ask you turn away from this, cause it happens ALOT. Throughout the story.