We all know that Derpy is different than all the other poines. But maybe just a little too differemt. As their harsh words claw at her, the only thing to do is leave. Forever
This is about Luna's last moments before she becomes Nightmare Moon. How did it happen in the first place? What happened just moments before the change, and right after?
Sunset Shimmer crosses the portal to bring Twilight Sparkle back into the human world for some much needed help. *If you have not seen Equestria Girls, you may not get some references*