Moving my MLP fics from AO3 to here.

After the disappearances of many notable ponies, including Rainbow Dash, everypony is surprised when the culprit is found to be none other than Pinkie Pie. Her friends insist this could never happen. Never! Meanwhile, Rainbow Dash learns of the disappearance of a famous long-dead serial killer from the pony afterlife, presumably to possess a living pony. She leaps into action, hoping to save her best friend from the blame of a crime she did not commit.

I have to give credit where credit is due. It was ChocolateZombie who wrote the first fic with a similar concept on Fanfiction.net. Due to the first one being left unfinished for over a decade, I figured I had permission to write my own version. If you want this taken down, I will gladly oblige. You are an excellent writer and this is my homage to your Cupcakes fanfic.