Creepypasta x Messenger!Reader

You could be considered the mailperson of the Creepypasta world, taking letters, threats, and people from Creepypasta to Creepypasta. What happens when you encounter some of the more famous killers?
These stories are kinda like oneshots, loosely connected but you can still skip around to your favs
(Also Slenderman won't get one because he's like, a thousand years old)