1934. Now a private detective, Miranda Green leaves England for Egypt. She must investigate a murder perpetrated in a supposedly inviolable place: the British Embassy in Cairo, where a top secret document was stolen the same night. All those present in this closed place are suspected: the American photographer, the English student, the American actress, the Egyptian security guard, the ambassador interpreter, the Egyptian gardener and - why not? - the Ambassador himself. But who would have expected that a small group of Nazis would be behind a plot, risking to jeopardize both Buckingham Palace and the peace of the world?