The Genius and Mrs. Genius (1997)
newyorker.com
newyorker.com
https://www.buzzfeednews.com/amphtml/ishmaeldaro/thanks-for-...
The books became darker, sure. But it also lost plot cohesion. There is proof his wife was the one tracking the various plot and continuity lines through his 21 volume Aubrey-Maturin series. The last three are not quite the coronation of a life's work they deserved them to be.
By the way, nice rhetorical trick of reducing half of all of one's wealth, plus child support and/or alimony to "a cheque".
[1] https://www.inc.com/amy-nelson/women-drive-majority-of-consu...
Well perhaps. Yet the article describes her as having arrived in America with "uncertain English", and Nabokov had spoken English from his youth and attended an English college.