"It happened many years ago... on a cold and windy Halloween night... A seemingly normal day involving seven friends on a sleepover suddenly turned into a massacre when she, who was 7 years old at the time including all her friends who were a year older or younger, slaughtered everyone with a big butcher knife. It was only by chance when she mindlessly wandered outside and a patrol car happened to drive by and soon enough, taken into custody and interned into Equestria's Hospital for the Mentally Ill. No one and no thing has been capable of explaining the sheer mystery that surrounds her, or better known by the general public as many names including 'Evil on Two Legs', 'The Shape', and only to name a few. Back then, many doctors and psychologists tried to the best of their ability to reach her and bring her back from that dark abyss, but now have all come to agreement that what simply overpowered this once innocent girl was purely and simply... evil."
(I know that it's definitely not Halloween yet, but I just wanted to get this out of my system.