Luna's betrayal plunged Equestria into chaos. In a bid to restore harmony, Celestia calls upon the very ponies who once served the Nightmare to drag the world from the ashes – and find the monsters who would threaten our future. I am one such pony.
Obsessed with uncovering the magic responsible for creating the portal mirror she used to recover her crown, Twilight eventually manages to create a gateway to a series of worlds one step removed from her own.