The Secret Adversary

A lively adventure and spy story set in London soon after the First World War. Tommy and Tuppence, two old friends short of money and bored with peace, decide to form a business as young adventurers, ready for any job that pays. Almost at once they are drawn into a dangerous affair involving a missing girl, a vanished secret document and a shadowy criminal figure known as Mr. Brown. The book is light, quick and playful, and it began a series of stories about this likable, bantering pair.