A group of septuagenarians in late-1950s Britain are receiving upsetting phone calls: a man keeps harassing them, simply stating, "Remember, you must die." In Spark's hands, what would be a vehicle or device for a crime/thriller in the hands of someone like Agatha Christie instead becomes a tour de force of social commentary.Like Christie, Spark uses social banter to explore and criticize social issues; in Memento Mori, Spark brings postbellum anxieties about class, gender, and death to bear on relationships between individuals. Unlike Christie, Spark is not concerned with placing the mystery at the center of her novel. Instead, Spark creates an often laugh-out-loud funny—and often bewilderingly and staggeringly cruel—portrait of a close-knit group of people who are actually not all that close-knit at all.Spark's scope here is phenomenal, as is her mixture of farce, politics, and drawing-room comedy of manners. One is often reminded of writers like James and Elizabeth Bowen when reading Spark: her razor-sharp wit, her combination of high-brow and low-brow comedy, and her ability to expose idiosyncrasies and hypocrisies in social interactions are what make Memento Mori work so well as an attack on a very real fear—the fear of death after having lived through the death of the world, twice over.