Whenever I have just finished a novel by Bernard Werber (and I've read them all, except the Book of the trip), I always ask myself the same question: where he is going to get all that? This guy really has a vivid imagination. The Father of our fathers did not fail to take me to this reflection. This time, it comes to know the answer to an existential question: "Where do we come from?" There is the starting point for the entire plot. The story is set halfway between the polar and initiatory journey. A renowned paleontologist was found one morning dead in his bath. He was probably murdered because he had discovered what was the origin of man. Two journalists will then embark on an investigation into the motives of this murder will bring themselves to be interested in search of the famous "missing link", subject to moult conjecture. Their journey will lead them to encounter colorful characters, in Paris, but also in Africa where they will discover the truth. But hush! It's a surprise (and size, believe me) ... We find in this novel the author's manufacturing brand; no doubt about it, that's the Werber. In terms of form, Werber still employs the same technique: the narrative splits into several parallel stories (in two), but always end up meeting. This author really has the knack to annoy me (not unkindly, of course): the two stories are alternated from one chapter to the next, so it creates a lot of suspense. And that suspense can get really stressful. This was particularly the case at the time of the final revelation: it made me so feverish that I almost tear pages wanting to read faster! In fact, if you start that novel (or a book Werber in general) allow time. You'll want to read it to the end as he always manages to keep you going, albeit less striking in it. But big flaw I found in most of these novels, Werber really struggling to properly finish his books. Looks like the fact with regret, which ultimately is a good point for him. Beyond the form, I really appreciate the style of Werber. The theme was difficult, but he has put a lot of humor, cynicism sometimes and fantasy, and in parallel, we learn many things quite exciting. It also Werber knows to do; we guess his thirst to learn that manages to convey to his readers in a very educational way. In short, I liked this book, unless Ants, but it was really hard to do better in my opinion. A great way to relax and escape, to read with detachment and relaxation.