There were always two rulers of Equestria until Luna; the younger princess, was banished to the moon. The story was that she had become Nightmare Moon, but as it turns out; it was a lie. Princess Celestia makes the biggest sacrifice anypony could when she discovers a detail she had missed. Everything is revealed.

Note: This doesn't follow up to the first episode of My Little Pony: Friendship is Magic. I also wrote this on my spare time, so expect wasted potential and a low quality story.