My wife is a big fan of the “Millenium” series, three mystery/crime novels written by Swedish journalist Stieg Larsson. There are three published books that have managed to sell millions around the world and have gained a large following of late (the third installment should be delivered to our door by post this week). In Sweden a movie has been made for each volume in the trilogy and, I believe, Hollywood is jumping on the wagon as well. Amazing success for an author who died in 2004, not having lived to see a wide readership enjoy his work.
There are, apparently, rumors of a fourth manuscript that keeps focus on the two main characters of the series, Mikael Blomqvist and Lisbeth Salander. This would be quite the gem for fans of the series, should it be true and should the book actually end up being finished and published. These details are, of course, uncertain at the moment. An article about the possible manuscript can be found here.