"I don’t think you would have cared for its DENOUEMENT," he said with sudden grimness.
She followed in imagination the career of other beauties, pointing out to her daughter what might be achieved through such a gift, and dwelling on the awful warning of those who, in spite of it, had failed to get what they wanted: to Mrs. Bart, only stupidity could explain the lamentable denouement of some of her examples.
"DENOUEMENT—isn’t that too big a word for such a small incident?
There are no more uses of "denouement" in the book.
Show samples from other sources
Everyone was astonished by the denouement of the case.
While suspicion was to be directed against him, she would be making quiet preparations for a very different denouement.
Christie, Agatha -- The Mysterious Affair at Styles