This popular novel from the 1920s features a riveting plot centered around the untimely demise of a wealthy aristocrat during a weekend gathering at his country estate. The guests, a diverse mix of relatives and acquaintances, each hold intricate secrets that gradually unravel as the protagonist, a sharp-witted detective, meticulously pieces together the clues. Twists, turns, and red herrings abound in this classic whodunit, leaving readers on the edge of their seats until the final revelation.A popular mystery novel series featuring a clever private investigator solving complex cases in a bustling metropolitan city.