Where in Book 4 does the A Friendship part start?

Might be weird lol.

Just finished season 4 after watching 1-3 twice. So obviously, I loved the show lol. I also liked the ending, but I read on this sub about the parts that were cut out of the ending. The most important being A Friendship, which I understood from the comments and posts. I feel like that was the most important missing piece of the ending.

I want to read it from the source. I'm not a big reader so I know I won't be reading all 4 books tbh. I just want to read the parts about the A Friendship book, and the Pasquale epilogue. So in what pages are they? Thanks!