?? A global conspiracy. Four mysterious villains. One legendary detective. In The Big Four, Agatha Christie launches Hercule Poirot into a world of international espionage, sinister plots, and shadowy enemies who threaten global peace. When Poirot receives a cryptic warning from a dying man, he's pulled into a case like no other—one that spans borders and pits him against a cabal known only as The Big Four ??. With the help of his steadfast friend Captain Hastings, Poirot must unravel a web of deceit stretching across continents. More fast-paced than her traditional whodunits, this thriller blends Christie's sharp plotting with spy drama and high-stakes adventure ???????. Why mystery lovers keep coming back to this Poirot classic: ? "Poirot like you've never seen him—racing against time to stop a global threat." ? "A compelling mix of deduction, deception, and danger." ? A must-read for fans of Sherlock Holmes, John le Carré, and espionage thrillers This edition includes: ?? Annotations and historical context ??? Beautiful illustrations and restored formatting ?? A seamless Kindle experience ?? Download The Big Four today and join Hercule Poirot in his most dangerous mission yet. The fate of the world hangs in the balance.