It is 1939 and although she doesn't know it, it will be the last normal summer Alexandra Wickham will spend for more than thirty years. Alexandra is a young woman who sees her brothers fight and die for their country, and, inspired by their heroism, she is determined to do what she can for the war effort.

As a volunteer for the First Aid Corps, her courage, intelligence and talent for languages do not go unnoticed. Before long, she is approached by MI6 to go undercover and work as a spy. Undertaking some of the most dangerous missions of the war in France, she falls in love with a young soldier, who leaves the army behind for the relative security of the diplomatic corps. They marry, but her identity is a secret, even to her husband.

Over the next thirty years - as she raises a family - Alexandra continues to work undercover in some of the most dangerous trouble spots in the world under the perfect guise of a diplomat's wife. From India to Hong Kong, Morocco to Moscow, she puts her life on the line serving her country, whilst never receiving recognition.

Spy by Danielle Steel is the page-turning story of a fearless young woman risking everything for what she believes in.