A Secret Never Known
Audrey only found out that her husband was a government spy three years after he passed away. She was taking care of his documents when she saw a file she had never seen before. This file contained information about a secret mission the British government had assigned to him in the 1960s.
She did further digging and found out that he became a spy when he was just a teenager during World War II. he had been scouted at school because of his photographic memory, and since then worked as a spy. One thing Audrey wonders is why he never told her, but she believes it was to protect her.