The Girl who Takes an Eye for an Eye (#5 in series): Lagercrantz

The girl with the dragon tattoo does not forgive.

Salander is confined to the secure unit of a women's prison, with violence all around her, but for a hacker of her skills, there are no boundaries. She gives Mikael Blomkvist a lead that could give him an important exposé for Millennium magazine, an investigation into a sinister experiment that may also unlock the mystery of her harrowing childhood. The dragon inked into Salander's back is a constant reminder of her pledge to fight the injustice she finds on every side, and she will discover the truth, whatever the cost.