20 year-old Lady Diana Spencer laughed out loud when Prince Charles proposed to her having met her only 12 times. Five months later, she walked up the aisle - watched by three quarters of a billion people around the world - to marry what people believed was her Prince Charming. This is the true story of the seven days that led to the wedding of the decade - was it doomed before it even began?

In this gripping investigation, archaeologist Pepi Papakosta is on a hunt for Alexander the Great's lost tomb, and she makes an extraordinary discovery.