The story you are about to read was rushed out in order to be done in time for the EQD Writer's Training Ground challenge inspired by Pinkie Apple Pie. Pinkie Pie discovers a mysterious book while assisting Twilight with her genealogical research that reveals an amazing secret: The newest Princess of Equestria has a sister! Twilight sets out on an epic quest to determine the identity of this suspiciously secret sibling. With her trusty assistant Pinkie Pie at her side, how can she fail?

The prompt given was: While helping Twilight Sparkle with her genealogical research, Pinkie discovers another surprising familial connection. Pinkie heads out to investigate.