When the Light Goes is a 2007 American novel by Larry McMurtry.
[1] It is the fourth in a series of novels about Duane Moore from The Last Picture Show.
McMurtry wrote the last two novels in the series "are about the coming of age.
Except for a handful of passages — the chapters in Duane’s Depressed that describe his depression — the books aren’t autobiographical.
He doesn’t know what I know, despite having been forced by his analyst to read Proust.