? 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.