Spies, double agents, and people who swallowed their mail.

Expelled at eighteen for holding a greengrocer's daughter's hand, he was saluted through twenty-two German checkpoints eleven years later wearing a stolen general's cap.

A British spy once tried to topple the Bolshevik Revolution without firing a shot — his actual plan involved Lenin, Trotsky, and a tailoring problem.

The French army once used a man who could swallow live puppies whole as a courier, hiding documents in his stomach.