As punishment for her crimes, the Elements have cursed Sunset Shimmer to do favors for anyone who asks. Lucky her. And then there's that other Twilight Sparkle she keeps running into...
An ancient magical artifact causes floating lie meters to appear above everypony's heads. This causes Twilight to reflect on honesty and friendship. Based on an idea by theworstwriter.
Princess Celestia has been keeping a dark secret from her subjects for a very long time. It's not an easy truth to tell, but if anyone can accept her after learning it, it will surely be her most faithful student.