Top 10 Most Disturbing Novels. Not everyone has the stomach for disturbing literature, but there is such a large amount of writing in the genre that everyone should give it at least one try. This list will help to introduce you to the darker side of novels â the disturbing, macabre, and oftentimes downright sick. The only rule to this list is that the book must be a work of fiction. If you think something has been left off the list, be sure to tell us in the comments.