We've all seen and maybe read some absolutely stupid fucking shit online. Maybe some of you read it for fun. Maybe some of you avoid it like the plague. That's cool. But maybe you caught a glimpse of something that was rather awesome, and then kept reading.
And your mind was blown by either the crazy awesomeness, the fucked-up hilarious stupidity of it or the intriguing twist made upon it.
So, for whatever reason, what was the best fanfic you ever saw or even heard of, of an anime, book, tv, film or game series?

Mine is The Terrible Secret of Animal Crossing by Chewbot. It is the most epic dark stuff I've ever read in a fanfic about a game, and hell this is ANIMAL CROSSING.
A fantastic murder mystery story about the ambiguousness of everyone's experiences of the game taking to a rather terrible place that somehow makes perfect sense.

Check it out if you want because shit just got scary.

I was gonna do a "five favourite books" thing but come on, anyone can ask that. Let's throw a weird question out there for the internets.