On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?

Each pony of the main six randomly starts seeing questionable images within their heads.

Rainbow Dash envisions herself with Pinkie Pie, and vise versa.

Rarity and Fluttershy see these images of themselves, too, and so does Twilight and Applejack.

Twilight decides it must be some sort of pattern, but what does it all mean?