The Secret Adversary

Set in the aftermath of World War I, the story follows Tommy Beresford and Prudence "Tuppence" Cowley as they embark on a daring venture as The Young Adventurers. Facing job scarcity, they accept a mysterious assignment that plunges them into perilous situations. Along the way, they encounter a diverse cast, including an American millionaire seeking his cousin. This engaging narrative maintains suspense, cleverly concealing the identity of the main antagonist until the very end, and marks the beginning of a beloved duo in Agatha Christie's literary universe.