He stood behind the throne for 10 years. Watching. Waiting. When Tutankhamun died at 19, his wife Ankhesenamun was the last person alive with royal blood. She was 21. And whoever married her would become the next pharaoh of Egypt. She was so desperate she wrote a secret letter to Egypt's biggest enemy asking him to send his son. The prince came. He was captured at the border. Her own grandfather Ay married her. Took the crown. And Ankhesenamun disappeared from history. No tomb. No body. No trace