There is a legend. it says that in the Everfree, in Celestia and Luna's old castle, lives a beast that controls dark, and chaotic magic. This beast seems to protect the castle, but no one knows why...some say it speaks, and it says that it served under Luna before the darkness took hold of her heart.Some say that it may be an unclassified animal, most say that it protects the everfree an all it's secrets, others say it doesn't even exist...but maybe, just maybe it does. Maybe it has honorable goals in mind...or maybe it waits for Nightmare Moons return, to bring darkness to the land. Celestia has neither confirmed or denied it's existence...and has forbidden anypony from searching for it. If it does exist...it must scare the Tartarus out of our Princess.