Simon Moon always knew his dad was "something special", but he never connected the dots until, one day, a friend told him that his dad was a SAS Sergeant. Then, Simon decided to start uncovering the mystery of why his dad would disappear for long stretches with little explanation. David Moon from Ashbourne, Derbyshire, Simon's dad, originally joined the Army in 1939 when he was only 13, and later joined the SAS in the Second World War, after it was founded in 1941. Yet to this day, Simon is still trying to piece together what his dad's life was like,...