Celestia's past comes back to haunt her as Serif, a human who had made it into Equestria 1000 years ago seeks revenge on the princess for refusing to turn him into an Alicorn and banishing from Equestria. Little does she know that refusing his request could possibly cause the destruction of all of Equestria and it's ponies. Can the ponies successfully keep the world they know and love safe? Well, you will just have to read and find out.