A Tale Dark and Grimm, written by Adam Gidwitz, is an excellent novel study text. It is captivating and engages all students. The text also provides rich discussion comapring and contrasting classic fairy tales to the Grimm's fairy tales.
This student packet has a link to a book trailer, overview of using character traits in answers, and questions that go along with each chapter. In addition, there are multiple writing pieces that work as culminating activities after completing the text. It is 37 pages long, but you can eliminate sections or questions in order to differentiate.