u/waluigi_is_cute

I have only read The Prophecies Begin so far, and I am playing the audiobooks for my mother, for us to enjoy together. So far she is loving it.

My only concern is that there is a cat hell in the books, as I recently googled, called the dark forest.

My only questions are:

What book does it first mention the dark forest?

Is it very detailed, or just left up to imagination?

My mother has religious trauma, and she generally dislikes any depiction of hell or limbo. I understand y'all don't know her, and therefore cannot say if she will be okay with it or not, so you don't have to answer perfectly. I don't mind spoilers in this case, too.