While it is a bit difficult to hang early in the book because of a very thorough narration and lack of action, following is well worth persevering. The survey is conducted and the characters - including that of Lisbeth - are engaging and complex at once, and Book density allows the reader to feel fully involved in the plot. The resolution of the latter, however, was a bit too fast compared to the time of inquiry itself. Finally, a book that makes you want to continue the adventure in the Millennium universe.