Big catch: if you've read the back cover and the synopsis of the above editor, it's a good quarter of the book is revealed to you. Second disappointment: an end not as exciting as the first 80 percent of the novel. The narration until then effective, suspenseful suddenly loses its dynamism. The action does not fail and events jostling same, but I can not say exactly what he missed in the last 200 pages.
Too bad because the puzzle consisted in progressively so that it was difficult to stop my reading along the way. The characters are engaging, the plot well done, I still had a good time.