Onyx is a young crystal pony with a twisted mind. Starswirl the Bearded whisked him away from his home with promises of being his apprentice. Sombra is a strange creature who never wanted to be remembered. However, we don't always get what we want...
Fluttershy has returned to Sweet Apple Acres a week after the events of "Bats!" in order to check in on her new animal friends, only to find they have disappeared from their sanctuary, and Applejack won't tell her.