Steig Larsson creates his main character detectives to be the stereotypical “outsiders” in their society. Larsson sets up his novel, The Girl With the Dragon Tattoo, to have two main characters that are both forced into being outsiders in their society in attempt to make them powerless.
One of his main characters, Mikael Blomkivst, after being exiled from his magazine, Millenium, is taken in by Henrik Vanger. Vanger is one of the oldest of the Vanger family of Vanger Corp. Henrik employs Blomkvist to attempt the unsolved disappearance of his 16 year old niece, Harriet Vanger. Blomkvist is given full access to all of Henrik’s previous research and any other resources he may need to investigate the case.
The novel’s other main character, computer hacker Lisbeth Salander, was deemed mentally ill by the state and given a guardian to maintain her life and finances.
Lisbeth eventually teams up with Blomkvist in an effort to solve the Harriet Vanger case.
Both Salander and Blomkvist have been taken out of their positions of power and in a way exiled to Hedeby Island with the Vangers. As a result of the information they are given access to, Salander and Blomkvist are actually put in a position of power rather than being left powerless. In their research, they uncover a lot of dark secrets of the Vanger family, this knowledge is what allows them to be in a position of power.