Once a soldier of Princess Luna's guard, an Earth Pony whose name was lost to the ages, was killed by Celestia for a revolt he lead against her after she banished Princess Luna to the Moon. Now a thousand years have passed and he wanders the Everfree forest as a spectral ghost. That is until he comes across a certain orange filly with a purple mane. How will they all react to the new discovery of a Headless Horse? How will he react to seeing Princess Celestia and Luna again after a thousand years? Especially after Celestia had him killed.
The mysteries of the Headless Horse will be revealed...

(This isn't really a full on gore story, I just put it there because there are occations where blood is spilt and ponies die. So don't expect somepony to have a blood filled, serious injury all the time, just maybe occationally).