This was a pleasantly short and fairly decent book. I will say, I thought that it lacked areas of thrill and the mystery was really only half of the book, but it was super fast paced and the setting was really good. I wish Sherlock was featured more than he was, but I guess he was there for an appropriate length of time. The concept was good and somewhat interesting, but I did feel like it was intended for a younger audience. I am now intrigued to watch the film.