The sixth Lisbeth Salander story in the Millennium Series--the crime-fiction phenomenon that has sold more than 90 million copies worldwide. When Mikael Blomkvist needs to identify a man who died with his phone number in his pocket and whose last words spelled danger for important people, there's only one person who can help: Lisbeth Salander--the fierce, unstoppable girl with the dragon tattoo. But Lisbeth has vanished. She's sold her apartment in Stockholm. She's gone dark. No one knows where she is, and no one is aware that at long last she's got her primal enemy, her twin sister Camilla, squarely in her sights. In the end, it will be Blomkvist--in a moment of unimaginable self-sacrifice--who will make it possible for Lisbeth to face the most important battle of her life and, finally, to put her past to rest.