Should a denouement ever surprise its author?
When all the teeny-tiny plot points are put together and explained away in one final tell-all moment, should the writer of said moment ever be the one left most slack-jawed of all?
Oh, probably not.
Leave the door open to a surprised gasp from yourself. An author’s dumbfounded double-take at their own denouement is bloody fun in a controlled environment.
So while I always shut that final door on the story firmly, I never, ever lock it.
If brilliance once to sneak in at the very last moment, let it.