Nightmare Moon was known as the embodiment of jealousy and hatred within Princess Luna's heart, at least that's what the books and legends of Equestria say. The truth is much more complex than that though, but few know this. How did Luna change into such a powerful and vengeful pony? Who, or what, IS Nightmare Moon, really?
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This was one of my first multi-chapter ponyfics that I wrote. Obviously this was written before we got to see what canon Luna is like, so if she seems a bit out of character, that is probably why. I tried to keep this as true to what I had originally wrote while doing some minor editing work as well. Hope you enjoy it!