The fifth instalment features Larsson's two main characters: hacker genius Lisbeth Salander and journalist Mikael Blomkvist.
"I feel like I've incorporated the characters in my body," Lagercrantz said, and while remaining faithful to Larsson's characters, he had added his own touches to develop the narrative.
Themes he explores include issues about so-called honour culture and women, the pressure on freedom of speech and journalism, and "nature versus nurture, what forms us," he said.
Larsson, a journalist turned novelist who died of a heart attack in 2004, achieved posthumous success with his Millennium Trilogy, starting with "The Girl with the Dragon Tattoo," which has sold over 80 million copies worldwide.
Lagercrantz said he had reflected on Salander's choice of motive for the tattoo, and wanted to explore her past. A visit to Stockholm Cathedral that has a medieval statue of St George and the dragon gave him some clues.
The new instalment is released simultaneously in 25 countries, including Britain, Germany and Japan.
It follows "The Girl in the Spider's Web," published in 2015.
Lagercrantz is under contract for a sixth instalment, and has started writing.
Larsson's trilogy has been made into several films, including a 2011 psychological thriller based on the trilogy's first novel staring Daniel Craig.
--------------------------------------------------------------------------------------------------------------------------
"I feel like I've incorporated the characters in my body," Lagercrantz said, and while remaining faithful to Larsson's characters, he had added his own touches to develop the narrative.
Themes he explores include issues about so-called honour culture and women, the pressure on freedom of speech and journalism, and "nature versus nurture, what forms us," he said.
Larsson, a journalist turned novelist who died of a heart attack in 2004, achieved posthumous success with his Millennium Trilogy, starting with "The Girl with the Dragon Tattoo," which has sold over 80 million copies worldwide.
Lagercrantz said he had reflected on Salander's choice of motive for the tattoo, and wanted to explore her past. A visit to Stockholm Cathedral that has a medieval statue of St George and the dragon gave him some clues.
The new instalment is released simultaneously in 25 countries, including Britain, Germany and Japan.
It follows "The Girl in the Spider's Web," published in 2015.
Lagercrantz is under contract for a sixth instalment, and has started writing.
Larsson's trilogy has been made into several films, including a 2011 psychological thriller based on the trilogy's first novel staring Daniel Craig.
--------------------------------------------------------------------------------------------------------------------------