The Big Four

First published in 1927, The Big Four is a fast-paced mystery novel featuring the legendary detective Hercule Poirot, one of the most beloved characters in crime fiction history.

When Poirot uncovers a shadowy international organization known only as the Big Four, he is drawn into a dangerous web of political intrigue, secret identities, and global conspiracies. From quiet English villages to dramatic confrontations abroad, the stakes rise with every chapter as Poirot races to expose a criminal force that threatens the world itself.

Unlike traditional whodunits, The Big Four delivers high tension, bold twists, and relentless momentum, making it one of Agatha Christie’s most unique and adventurous novels. Fans of classic detective fiction will appreciate Poirot’s brilliant deductions, sharp wit, and unwavering pursuit of justice.

This edition presents the complete, unabridged text of the novel, carefully formatted for modern readers.