After the story ... The beginning is very good start, quick start, you are caught in the book with a good pace. In the middle, it starts a little bored. Where the author wants to go? Then, the action which upsets everything. Doubt that installs and thinking, what is the sense of history, which may be the culprit? I'm not a fan of this kind of book, but for me I had made the connection directly and understood what had happened. It is not without suspense as I arrived at the end of the book. By cons very surprised by the chosen outcome that for my part, do not not at all.
My conclusion, quick thriller but will not disrupt anything.