Many SF fans will read this novel with pleasure. The basic idea is really excellent: an artifact that is a temporal paradox, a video of Chris available today (if it is found) with a likely time travel We (performed when or future?) taken by intrigue, caught up in the twists. What is unfortunate is that we pass from the masterpiece it could have been. The literary quality does not follow, the characters, like (better still) The Da Vinci Code - which is a great synopsis and a literary horror! - Are too schematic. The narration is sometimes awkward. Well, total: fun anyway but this regret remains. It could have been on this story skeleton, so much réusisi.