The start of a thrilling new World War Two mystery series from the number-one-bestselling and multi-award-winning author of Murder Most Unladylike. 'Robin Stevens is Agatha Christie for children' - Katherine Rundell on the Murder Most Unladylike series'Superb' - Observer'Absolutely thrilling' - Louie Stowell1940. The world is at war, and a secret arm of the British government called the Ministry of Unladylike Activity is training up spies.

Enter May Wong: courageous, stubborn, and desperate to help end the war so that she can go home to Hong Kong (and leave her annoying school, Deepdean, behind forever). May knows that she would make the perfect spy. After all, grown-ups always underestimate children like her.