When I was a teenager, I heard about a fantasy series where the author was mad about publishers assuming the rights to series and publishing unauthorized sequels.
So this author, who was close to retirement or death, completely sabotaged his world. He revealed that everything in the world was a fake, or completely blew it up, or something similar to that.
It could also have been sci-fi. I know this is vague, but do you know which series had its author completely dismantle the canon to prevent future sequels?