The Secret Adversary

Agatha Christie's first Tommy & Tuppence book is a mystery packed full of international intrigue and murderous suspense.

Tommy and Tuppence, a young pair short of cash and restless for entertainment, embark on a bold new business scheme – Young Adventurers Ltd.

Their advert states that they are 'willing to do anything, go anywhere'. But their first assignment, for the unnerving Mr Whittington, throws them into more danger than they had ever imagined.