I would categorize this book as readable enough but so,so depressing. No character, except maybe the brother, is sympathetic and the two main characters are just downright creepy. I don't think I would be giving anything away by saying that the reader knows right from the start that there will be no happy ending. There may be enough content to analyze or discuss in a group but I would not feel comfortable choosing this book for the people in my group. Obviously, you can't always have a "happy ending" but I think most people want to have some sense of hope in a book and this books just doesn't.