Saddened : Eva Gabrielsson has said Larsson would have 'furious ' about the release of That Which Does Not Kill Us , the fourth book in the Millennium series . Stieg Larsson 's partner has hit out at plans to release a fourth installment in the Girl with the Dragon Tattoo series more than a decade after the journalist 's death - dismissing it as nothing more than a money-making scheme . Eva Gabrielsson has said Larsson would have 'furious ' about the release of That Which Does Not Kill Us , which will hit the shelves in August to coincide with the 10th anniversary of the release of the hugely successful Girl with a Dragon Tattoo . Gabrielsson - the left wing journalist 's partner of more than three decades - has not only questioned the motivation of the publishing house , but been hugely critical of the author chosen to follow in her late partner 's footsteps . David Lagercrantz , a journalist and author best known as footballer Zlatan Ibrahimovic 's official biographer , is ' a completely idiotic choice ' in her view . 'They say heroes are supposed to live forever . That 's a load of c*** , this is about money , ' she said . 'It 's about a publishing house that needs money , ( and ) a writer who does n't have anything to write so he copies someone else . ' Larsson had , in fact , begun work on a fourth book centering on protagonists Lisbeth Salander , a feisty rebel hacker-turned-detective , and Mikael Blomkvist , an investigative reporter , before his untimely death in 2004 . Aged just 50 , he suffered a heart attack as he walked the seven storeys to his office , where he worked as a journalist and editor of anti-fascist magazine Expo . The books were published posthumously , so Larsson never saw how successful the books were to become : so far , they have sold more than 75million copies in more than 30 languages , according to publisher Norstedts . However , Gabrielsson , 61 , has dismissed any idea he had an overarching plan for the novels - a theory which has been used to justify the publication of this latest 500 page tome . She also revealed Lagercrantz had not seen the fourth manuscript , and 'started over from zero ' . 'Everyone thinks there was some grand scheme but no , he had no plan for the first three books and when he started writing the fourth one , it was spontaneous . He still did n't have a plan , ' she said . If it were up to her , none of this would have happened . ' I would n't have continued Stieg 's work . It was his language , his unique narrative . ' Furious ? : Stieg Larsson - who died in 2004 , before his trilogy became successful - had started work on the next book , but David Lagercrantz , who has picked up the baton , has started from scratch with his version . Gabrielsson says she views Lagercrantz is ' a completely idiotic choice ' to continue Larsson 's work , with even the 'very literary ' title sitting badly with her . She said : ' [ He ] comes from a completely different background . Everything has always been easy for him . He 's never been an activist . Everything is wrong . ' Gabrielsson , who met Larsson as a teenager , added : 'Let him dig his own grave . ' For Gabrielsson , the publication is a bitter blow - the outcome of a bitter battle against her partner 's family to manage his work . Success : The books , which have sold millions around the world , have been made into blockbuster films . Following his death , Gabrielsson wanted to manage his authorship to avoid its commercialisation , but she says she never reached an agreement with Larsson 's brother and father and they now manage his estate . She says now 'there is nothing left to protect ' . But Gabrielsson , who only recently moved out of the home they shared as she tries to rebuild her life , believes the wrong things have happened - especially when it comes to the new book . 'The worst thing is how saddened Stieg would have been . He never let anyone work on his literary texts . 'He would have been furious . Who knows , maybe he 'll send a lightning bolt at the book launch . '
Fourth installment in the Millennium Trilogy due to be published in August . But Larsson has said her late partner would have been 'furious ' Descried the release of the 500-page book as a move motivated by money . Dismissed author following in Eva Gabrielsson 's footsteps as an 'idiotic choice '