Thank you!
I've added a short section to the itch page that gives a bit more clarity on instructions;
Goal
Try to stay warm by exploring the labyrinth-like abandoned library, scouring for books that haven't been damaged by the elements & can still be used to fuel the fireplace! But beware: burning books without first immortalising their contents in your mind (in the order in which they occur in the series, you're just obsessive like that!) will lead to you slowly spiralling into insanity, so think carefully about what you sacrifice...
Hopefully that helps!