Eight short mysteries gather here in a collection assembled for American readers, drawing on stories that first ran in British and North American magazines across several decades. Hercule Poirot leads four of the cases, with Captain Hastings narrating his observations as the detective untangles a stolen consignment, a poisoned-seeming quarrel, a recovered jewel, and a clue that doubles back on itself. Miss Marple appears in two village-set puzzles, applying her quiet study of human nature to a death at a folly and to a wounded stranger who collapses in a churchyard. The remaining tales step outside the detective mode into darker, stranger territory: a séance pushed past its limits and a doll that refuses to stay where it is left, both trading deduction for unease. The pieces range widely in tone, from drawing-room logic to outright menace, and each turns on a compact problem rather than a sustained investigation. Because the book pulls together work written years apart, it samples Christie across her career, pairing her two best-known sleuths with the supernatural and standalone stories she returned to throughout her writing life. The settings move from trains and country houses to dressmakers' rooms and English villages, and the cast shifts entirely from story to story. It reads as a survey of her shorter fiction, balancing recurring detectives against self-contained chillers and offering a compact entry point to her range.