A thousand years after the Princesses disappeared from Equestria, Twilight Sparkle meets a lost Cloudsdale scout named Rainbow Dash. Together they look for a way to end the thousand-year night.
As the details surrounding the Canterlot Invasion don't add up, Twilight investigates the suspicious disappearance of a guard during the attack. Just how did Chrysalis manage to sneak so deeply into their ranks?
Left only with a promise to keep in touch, Rainbow Dash struggles to convey her feelings, and to figure out what the words were that she couldn't say on that one last misty night at the train station before Twilight left.