If you sinned greatly in a previous life and need to make amends then this could be approrpaite penance. I'm visually impaired and the idea of wading through 21 hours for a crime novel turned me off. I didnt read it and the people in the book club who did found it turgid at best. Forget arty farty media reviewers as this may be histororically well detailed but the author is not a storyteller. Try Mistress of the Dark Art of Deat by Anna Franklin or books by other authors if you want a proper historical crime novel.