The Countess of Carnarvon (Fiona Carnarvon) discusses her new book "The Earl and the Pharoah: From the Real Downton Abbey to the Discovery of Tutankhamun." The Fifth Earl of Carnarvon (an ancestor of the Countess's husband) essentially bankrolled - and participated in - the discovery of the magnificent tomb of the ancient pharoah known affectionately as "King Tut." The Countess and her husband live in the family home, Highclere Castle, which was the setting for the series Downton Abbey.