A gripping Nordic crime thriller by David Lagercrantz and the fourth novel in the internationally acclaimed Millennium series. It continues the adventures of hacker Lisbeth Salander and journalist Mikael Blomkvist following the death of the series' original creator, Stieg Larsson.

Brilliant hacker Lisbeth Salander is drawn into a dangerous conspiracy after computer scientist Frans Balder contacts journalist Mikael Blomkvist with explosive information about a revolutionary artificial intelligence project. Before Balder can reveal everything, he is murdered, and his young autistic son becomes the target of ruthless criminals.

As Salander and Blomkvist investigate, they uncover a global network involving cybercrime, corporate espionage, government corruption, and international intelligence agencies. At the heart of the conspiracy lies Camilla Salander, Lisbeth's estranged twin sister, whose return forces Lisbeth to confront painful memories and unresolved family trauma.

Combining fast-paced action, cyber espionage, murder mystery, and psychological drama, The Girl in the Spider's Web explores themes of technology, surveillance, artificial intelligence, revenge, and the enduring impact of childhood abuse.