Something strange is happening to the residents of Ponyville. A dark presence has come to the usually peaceful town, bringing with it a horrible cloud of death and destruction. As this unknown terror worms it's way through the fair town, it is thrust upon Twilight Sparkle and her friends to discover and counteract this menace before it is far, far too late. But do the streets of Equestria harbor a far larger secret, one that could topple a certain princess? And what does this have in relation with the dangerous, undeniably evil, utterly indestructible and impossibly blacker than pitch creature?
It seems that the shadows are no longer a place to hide....