When Rarity is being asked to give a fashion show in Canterlot, she can't resist. She has to go no matter what. The only problem happens to be that her friends find it rather fishy and don't want her to go. They know something that has happened to Rarity not too long ago. A thing that the seamstress can't remember herself. A fact they also want to keep that very way. Rarity knowing the answers about the events would be devastating.
Yet old enemies do tend to return at the most unexpected times. Some are blunt, quick to strike and defeated easily. Others, sit out their time. Manipulate those around them in believing they are good. Patience is a virtue, is often said. How long before the final blow can be given when that patience has already ran for a millennium? History tends to repeat itself and nightmares are the most powerful warnings that can be given. Nightmares of the past, preludes to the horrible future to come.
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Sorta sequel to the MLP comics issue 5 through 8 (otherwise known as the Nightmare Rarity arc)
Cover picture is cropped picture made by godzilla3092