The Tyrant King | Code name Quicksilver | Author: Allan Frewin Jones |

Zak's training is cut short when he is sent on his first mission. The King of Montevisto and his family have been threatened and the secret services believe the attack will take place on the family's forthcoming visit to the UK. It's vital that the trip goes smoothly and Zak is in charge of protecting the king's son. He soon finds he needs all his training and talents to outwit the enemy and save lives.