I have to admit, that I used to be a Dan Brown fan.... started with the Da Vinci code, then to Angels and Demons and the rest from there. I never used to understand the prejudice behind his books, especially from the critics, and felt them easy page turner thrillers. I think in this case however, I am beginning to see why.
Firstly, this book is a variation on the same theme... mystical treasure, kidnap, death, run around town like a headless chicken.... beautiful lady and a twist at the end. So lets just say far from original
Secondly, he keeps telling us what their character is thinking, almost treating the reader as slow witted, as 90% of the time you know what they are supposed to think
Thirdly - Freak of nature/weirdo chasing the hero....
Finally - and really specific to this book, is the quest is just boring, the twist is even more boring! In the previous books something was at stake, and you just had to know what the outcome was... in this book I just really didn't care. If Langdon, the Masons and his girlfriend spontaneously combusted I would not have cared, in fact probably would have found it more interesting!
Sorry..... Dan Brown, you are no longer on my must read list