/lit/ - Literature

I'm nearly finished writing a novel and I'm wondering if my premise is intriguing. It's a post apocalyptic setting (20 years after a mass extinction event wipes out most people and nature has reclaimed everything). There's quite a bit of cosmic horror and a big terrible monster that can warp reality and erase people form existence. The story itself is centered around a young girl living with her family. There's a coming of age element that I think grounds everything, but there's plenty of weird stuff too. I think I'll understand my themes better once it's finished, but overall it's pretty dark. Does this sound appealing? Also, does a 12 year old protagonist and the whole coming of age thing make this YA?

for another reference I guess something like the vidya Talos Principle

Numbness and an inability to be satisfied slowly building in to a limp directionless frustration that I know time will dissipate and render meaningless.

What can I read after the book of the new sun ?

I bet you guys can't name a single book that is more entertaining than this simple 14 second of video?
https://www.youtube.com/watch?v=DpmbxIX9nhs