The Wall by Marlen Haushofer. The premise is kind of interesting. A women goes to the Alps and gets trapped behind some kind of invisible forcefield which blocks her off from the rest of the world, so she has to survive on her own. The book unfortunately ended up being a monotonous slog. It made it especially boring that the protagonist was not curious at all about the origin of the forcefield. She didn’t try to experiment or learn about it. Instead she was just like: “OK, I am going to take this cow to go grazing again and come back.” Not interesting at all.
Also read it this year. I found the “stream of consciousness” style a bit challenging to engage with, but I could relate to the characters and situations, so actually still generally enjoyed it.