I only know of the books that were planned by Stieg Larrson before he died. It is bad enough that the excellent Millennium trilogy was only published after the author's death, but he was almost done with a fourth book in the series as well. Apparently Larrson was planning on writing as many as ten books in the series and there may or may not be synopses or manuscripts for these floating around, depending on who you believe. The Swedish author, David Lagercrantz, continued with the Millennium series, but he did not have access to Larrson's notes, which is still in the hands of Eva Gabrielsson, the long-term partner of Larrson.
Are There Any Authors Who Were Unable To Complete Their Books Before They Passed Away?
Posted on 24th of October, 2018