Other kinds of dénouements add one final twist to the story. For instance, in Carol O'Connor's Shell Game, the dénouement is told from the perspective of a twisted, ruthless killer who Detective Katherine Mallory has been tracking. As the novel ends, the killer makes one final move in the cat-and-mouse game he and Mallory have been playing. The beauty of that sort of dénouement is that it keeps the reader's interest - right to the last sentence. I found it hard to let go of that ending, actually.
In mystery series such as Alexander McCall Smith's The No. 1 Ladies' Detective Agency, the dénouement often gives strong hints about what's to come. For example, in the original novel, the last sentence of the story lets the reader know that Precious Ramotswe is getting married to Mr. J.L.B. Matekoni. This whets the reader's appetite for more novels, and sets the stage for what's coming. Laurien Berenson does the same thing in her Melanie Travis mysteries. We also see that kind of dénouement in many of Janet Evanovich's Stephanie Plum novels.