Fabulous book. Fabulous. Loved it. The only negative thing I have to say about it is that it's very intense and intense and probably not a good book to read if you're otherwise stressed. That's not actually a negative though, just an observation.
The book is a continuation of the Mikael Blomkvist's and Lisbeth Salander's relationship/adventures/lives after the Wennerström Affair and their historic investigation into the Vanger family and the disappearance of Herriet Vanger in The Girl with the Dragon Tattoo. Lisbeth, a slightly odd person with possible Asperger's Syndrome and/or other psychological and social difficulties, distances herself from her friend Blomkvist and vanishes into thin air. Blomkvist doesn't give up trying to contact her despite her obvious desire never to see him again. Suddenly, two of Blomkvist's friends and business parters are murder and Salander is implicated and it become more important than ever for Blomkquist to find his anti-social hacker friend.
Larsson does such a good job at making Salander so very likeable despite her obvious dislike of people in general, that you really become quite afraid for her. I found myself quite emotionally involved in this book, rooting for Salander and Blomkvist all the way. There are so many twists and turns in the story that it's impossible to see how things will develop, which keeps you constantly on the edge of your seat. It only took me two or three days to read this, despite being quite a long book. It's one of those where you've just got to know what happens next, so you can't put it down. This one gets 5 out of 5 for plot, likeable characters and readability.