When master thief Sunset Shimmer discovers that the money she robbed from a casino is counterfeit, she goes to the country of Everfree, rumored to be the source of the forgery only to discover a plot involving the love of her life.
Long ago, in the dead of night, Luster Dawn saw a dark figure in Canterlot Castle's throne room. Longer still before that, Princess Twilight Sparkle and her friends defeated one of Equestria's greatest enemies in that same room.