All ponies know the story of how the beloved Princess of the Night, Princess Luna became Nightmare Moon. But what if Nightmare Moon, was only an entity? What if everything you knew, was a lie?

Cover Image by Dreampaw (I couldn't find a link to the original, and even if I could, I probably wouldn't be able to get on it)

Short one-shot that I came up with in Economics class while I was slacking off.