[Sad] [Dark] [Alternate Universe] An extension to this story is in the works.
Author: Rainbow Sparkle
Description: Discord was defeated, but what if the Princess was unable to reach her student. What if Twilight didn't get the friendship reports that she had written, and rediscovered the magic of friendship. What if... she had written one last letter... and left Ponyville forever?
One Last Letter
Additional Tags: Hopelessness, fluttercry, depressing, evil, songfic