Brennan Ruegg I believe this scene was only included to further demonstrate Salander's moral composition and fortitude, especially for readers who picked up the series on Book 2. I wondered, too, if the Forbes thing would come back up, and it never did. So my only guesses are that it was used A.) to preemptively vindicate Salander of Dag & Mia's murder, (because why would she murder two people to whom she is morally sympathetic?) and B.) as a well-deserved character-building vignette because, let's be honest, even as the titular character, she doesn't get a lot of airtime in Played with Fire.