In this novel, we find Ari Mackenzie where we left off with "The Ockham's Razor"? Not exactly, but shortly after this strange case that left an aftertaste of unfinished ... especially for the winning trio Mackenzie / Michotte / Zalewski. A strange encounter + inoppiné a burglary at our three accomplices + strange disappearances = case goes again and for our pleasure. The book Honnecourt Villard ultimately did not revealed all its secrets and it's another character, just as enigmatic history, which will drive the point home: Nicolas Flamel (1 sneers mentioning that Harry Potter will be amputated a finger ^ _ ^) In any case, fasten your seat belts because the adventure sometimes verges on 220km / h (do not be flashed on the radar). It's a treat to find characters as sympatic, while others are already a little creepy ... is not it, Doctor? In short, it was well worth waiting for the publication of this novel. We want more!