It's good, but it is long! ... And a little waiting for!

A very good thriller, but 150 pages too! Once the story leaves French territory (because the story takes place in Switzerland, France, England and Germany), it gets a bit preposterous, too many actions in all directions, too many characters (often useless) and an end that we see come as the nose on the face!
But the first 300 pages are really excellent. Finally, even if it goes in all directions, the book takes a single argument: that we discover in the end, the very end even if however you do not doubt you 150 pages before the denouement.
Well, not really overwhelming enthusiasm, but reading nonetheless.