The Secret Adversary

A missing woman. A secret treaty. Two young adventurers with nothing to lose.

In Agatha Christie’s sparkling second novel, the Armistice has just been signed, and England is full of restless energy. Tommy Beresford and Prudence “Tuppence” Cowley—charming, penniless, and bored with civilian life—form the Young Adventurers, Ltd., willing to do “anything, go anywhere” for a price. Their first assignment plunges them into a dangerous web of international intrigue involving a lost treaty, a vanished girl, and a shadowy master criminal known only as Mr. Brown.

With wit, courage, and a touch of romance, Tommy and Tuppence race across London, from elegant drawing rooms to seedy boarding houses, matching wits with spies, anarchists, and ruthless killers. Christie delivers a fast-paced blend of mystery, adventure, and humor in this delightful departure from Poirot, introducing one of her most beloved and enduring sleuthing duos.

• First published in 1922
• The first appearance of the popular Tommy and Tuppence Beresford
• Agatha Christie’s second novel, showcasing her lighter, more adventurous style

Available in multiple formats:

• Paperback & Hardcover: Elegant print editions presenting the complete, unabridged text, ideal for your bookshelf.
• Ebook: DRM-free EPUB compatible with Kindle, Kobo, Apple Books, and all major e-readers.
• Audiobook: Professionally narrated, complete and unabridged, perfect for immersive listening.

A thoroughly entertaining golden-age thriller perfect for fans of spirited sleuths, espionage, and classic Christie charm, or the ideal starting point for the Tommy and Tuppence series.

About the Author

Agatha Christie (1890–1976) was an English crime novelist, short story writer, and playwright, widely regarded as the best-selling novelist of all time. Her works have sold over two billion copies worldwide, outranked only by the Bible and Shakespeare. Creator of the immortal Hercule Poirot and Miss Marple, Christie’s mastery of plotting, misdirection, and human nature made her the undisputed Queen of Mystery. The Secret Adversary marked the sparkling debut of Tommy and Tuppence, proving her versatility beyond the traditional whodunit.