Thread:Jester of chaos/@comment-36402152-20180731095003/@comment-36402152-20180828135703

It is a Bill Cipher origin fanfic, very popular among the Gravity Falls fandom. You know that his backstory is based on Flatland, right? Well, this story assumes that his home dimension is Flatland, and the reason he knows about the other dimensions is because he found the memoir of the protagonist of that book, A Square. Read it, it is great.