In early wartime London, a poised woman arrives with a compact mirror hiding a coded warning—“the music will stop once”—and the Belgian Detective and his loyal companion are drawn into a diplomatic Embassy reception where flags, manners, and orchestral cues become tools of control; as a missing courier, a velvet-handed hostess, and a covert exchange converge in a room designed for plausible denials, a planned pause in music turns into a test of attention, a public death, and a desperate distraction meant to let the real architect slip away; inspired by historical crime of its era while remaining entirely fictional, The Night the Music Stopped is an original Golden Age–style mystery about espionage, scapegoats, and the lethal power of directing where everyone chooses to look. Poirot