•Why it earns a slot
Why it earns a slot: Mansfield never states the story's argument outright, she just puts a party and a death on either side of the same road and lets a nineteen-year-old walk the distance between them, ending exactly where the reader's own certainty should start to wobble.
A wealthy family throws a garden party on the same day a working man dies just down the hill from their house, and only one daughter thinks that should change anything.
This distillation is written from the freely available original, which is always the better read when you have the time: Project Gutenberg.