By Tim Hanlon The Royal Family face an unprecedented time after Kate’s cancer diagnosis but they are said to pull together in their “darkest hour”, says royal expert Russell Myers. With speculation rife over her health following an abdominal operation last January, Kate has now revealed that she has cancer in a video message released today. She said that the news was a “huge shock” but she is feeling “stronger every day”. Kate has been absent from public duties since the operation during a difficult period for the Royal Family with King Charles and Sarah Ferguson also having been given cancer …