A success overrated

Well, certainly, it is a good entertainment, but still ... I understand in part the popularity related to the first 100 pages: Dan Brown has obviously raised a lot of information about Leonardo da Vinci, the Grail, etc. and it is presented attractively. So, we learn a lot of things in those first 100 pages while reading an entertaining novel. But after, the bibliographic research seems clearly to stop, it switches to a far more banal thriller with the plot twists and passable see improbable and far less interesting and less well written. In summary, all right, buy it to keep you busy for a train journey, but the best novel of the year, not really ...