Okay so obviously spoiler warning if you haven't seen it, but i just came up with a fic idea that focuses on Clark if Pirate Clark didn't kill him (or hurt him we don't actually know if he died bc it was never said).
So it's like a journal that he has and he writes in it every couple of days, exploring different sections of the backrooms and describing everything he's seeing and stuff. Each 'chapter' will be like a different journal entry and then he starts to actually loose his sanity.
OR
Same thing but with Mary, she manages to escape from Pirate Clark but she doesn't find the exit so she's trapped. Both characters would be roaming around the 'unexplored' parts of the backrooms where ASYNC hasn't been yet or set cameras.
Idk which to do but I actually really wanna write this because I think it would be a really interesting concept to explore.