The reason why the show was cancelled
The TV series has nothing to do with the book, it completely upsets the character and the sense of the story, in my opinion, for the worse.
I don't understand why they didn't make an original series instead of forcing the book narrative so much. I think this is the reason why the series was not as successful as it could have been remaining more faithful to the spirit of the text and has finally been cancelled.
It's a shame they cannot give it another try starting it over and sticking more to the original text.