From Agatha Christie comes an adventurous and fast-paced mystery featuring the brilliant Hercule Poirot—where the stakes go far beyond a single crime.

When Poirot and Captain Hastings become entangled in a case involving a shadowy international organisation known only as “The Big Four,” they find themselves facing a threat unlike anything before.

This is no ordinary investigation.

The Big Four are a powerful group of masterminds—each representing a different form of influence and control—working together behind the scenes to shape global events.

As Poirot follows a trail of clues across countries and continents, he must outwit a network of espionage, deception, and danger at every turn.

With each step, the risk grows higher.

Because this time, the enemy isn’t just one person… it’s an entire organisation.

Bold, dramatic, and full of twists, The Big Four blends classic detective work with international intrigue and adventure.

✨ Genre: Mystery / Crime / Classic / Adventure
📚 Series: Hercule Poirot - Book 5

Exciting, different, and action-driven—perfect for readers who enjoy espionage elements, global stakes, and Poirot facing his most dangerous challenge yet 🌍🔍📖