The Secret Adversary

Restless and broke after the war, childhood friends Tommy Beresford and Prudence "Tuppence" Cowley form a partnership offering their services to "do anything, go anywhere." Their first job pulls them into a dangerous conspiracy surrounding a missing young woman, a set of vanished government papers, and a mysterious mastermind known only as Mr. Brown. Introducing Christie's spirited detective duo Tommy and Tuppence, this fast-paced adventure blends espionage thriller with classic mystery in one of her earliest and liveliest novels.