Y/N and Hercule Poirot have been married for several years. Since the events of "Karnac," they have become inseparable: she, a former assassin who found salvation and love in him; he, a legendary detective who couldn't (and wouldn't) expose her. They have two children—twins Karl and Cassandra, aged 6-7, fair-haired, with Poirot's eyes and their mother's smile.