The untapped natural resources of Sweden's far north are sparking a gold rush, with the criminal underworld leading the charge. But it's not the prospect of riches that brings Lisbeth Salander to the small town of Gasskas. Her niece's mother is the latest woman in the region to have vanished without trace. Two things soon become clear: Svala is a remarkably gifted teenager -- and she's being watched.

Journalist Mikael Blomkvist is also heading north. He has seen better days. Millennium magazine is in its final print issue, and relations with his daughter are strained. Worse still, there are troubling rumours surrounding the man she's about to marry. When the truth behind the whispers explodes into violence, Salander emerges as Blomkvist's last hope.