It all started with an ancient tome discovered by the Element of Magic, and newest Princess, Twilight Sparkle. A hidden passage in the library led to a subterranean vault, where it was discovered. Bound in flesh and written in the blood of the innocent, she unleashes a horror locked away for countless millennia. Now, she must face the gaping maw of madness, or surrender Equis into eternal darkness....

(Crossover with the Cthulhu Mythos)