num_pages: 280
description: An emaciated stranger approaches Hercule Poirot, shouts a warning about "the big four" and drops dead. Who knew Poirot's inquiry into the man's odd behavior would lead to an underground laboratory, an insane asylum, and rumors of a secret weapon?
language: English
title: The Big Four
titlecomplete: The Big Four
characters: Number Four, Countess Vera Rossakoff, Dr. Ridgeway, Abe Ryland, An unexpected guest, Madame Olivier, Achille Poirot, John Ingles, Li Chang Yen, Hercule Poirot, Inspector Japp, Arthur Hastings
genres: Fiction, Crime, Murder Mystery, British Literature, Audiobook, Thriller, Classics, Detective, Mystery, Mystery Thriller
ratings_count: 55688
places: Italy, France, Paris, England, Belgium, London, England
series: Hercule Poirot
publisher: MacMillan Publishing Company