“The Girl in the Spider’s Web”

David Lagercrantz, Sept. 1

The book arrives a decade after “The Girl with the Dragon Tattoo” vaulted punk protagonist Lisbeth Salander to fame, following the death of author Stieg Larsson. The thriller by Swedish journalist and novelist Mr. Lagercrantz, which draws in the National Security Agency and Silicon Valley, has a global first print run of 2.7 million copies. As readers debate whether the book helps or hurts Mr. Larsson’s legacy, Knopf is sending Lisbeth look-alikes to targeted events...