I loved this book because it is full of suspense and surprises! I am a fan of Software surveys; ordinatueur is the same one of the best in the series. Christian Grenier's imagination is extraordinary and his books are very well built. I am always surprised not the end of the investigation that I never guess! I think Christian Grenier is a visionary; very advanced computers he describes in his books will our computers in the future? I think so. I highly recommend reading this book, you are a teenager or an adult!