Six months have past since the Royal Wedding and the incident with Queen Chrysalis and the Changelings. In order to have a proper celebration, Pinkie Pie decides to throw a party, as usual of her. But, during the party, Pinkie hands Twilight a scroll she found while rummaging though her supplies. Twilight, suddenly interested in the scroll, races home after the party to decipher it. Little did she know, that what Twilight was about to discover was something that will change the fate of her and her friends' lives forever…