The Big Four

A secret organization. A world-spanning conspiracy. Only one detective can stop them.



The Big Four is a thrilling mystery novel by Agatha Christie, featuring the legendary detective Hercule Poirot and his loyal companion Captain Hastings.



When a mysterious group known as "The Big Four" emerges, Poirot finds himself facing an international network of crime, deception, and hidden power. As danger escalates and secrets unfold, he must rely on his extraordinary intelligence and deductive skills to uncover the truth behind the shadowy organization.



Blending detective fiction with espionage and adventure, the novel takes readers through a fast-moving plot filled with disguises, global intrigue, and unexpected twists.



Perfect for fans of classic mystery, spy thrillers, and Hercule Poirot investigations, The Big Four offers a unique and action-driven entry in Agatha Christie's legendary body of work.