Celestia won. Her Royal Guards defeated Nightmare Moon and her army of rogue Lunar Guards. The Shadowbolts were driven underground, and the Lunar Apprentice is dead. And what has victory brought?
Hell.
The Elements of Harmony are separated and useless. The renegade forces of the New Lunar Republic are hidden in the shadows, free to move and strike at will. Confidence in Celestia's rule has been shaken throughout Equestria. Half the Royal Guard is out of commission, and the changeling army is on its way.
Every loose thread is being pulled on; it's only so long before the tapestry unravels.
Celestia may have won the battle, but she also unleashed the Night Terrors. And Equestria may not survive them.
Update 10/14/2015: Featured! Glad Night Terrors is proving to be as strong as its predecessor. A major thank you to all fans and followers!
Why should Celestia be the only one with a student?
Chaos begins to take root as Nightmare Moon, Rainbow Dash and the Shadowbolts declare war on Equestria and its ruler.