Offtopic for the actual post, but if you don't know the author and like sci-fi mysteries his Silo story is great. I haven't read the books because I'm enjoying theorizing but the Apple TV series is being broadcast now on a weekly basis. It's one of these very dense mysteries that asks you to figure out the clues. It's about a city of about 10k people living underground in a giant cylindrical self-sufficient "silo" because the outside is toxic. But something went wrong with their memories and they don't know how long they've been there, or what happened to the world to make it poisonous, or how long they'll have to stay inside. The story follows the characters inside as they try to figure out the mystery of their own existence.