FSX – Max Rex Episode: The Mystic Skull Mystery. A Max REX adventure story and flight. Max landed in Cali, Colombia and was picked up by the lovely Illian Guster. Little did Max know the adventure he would share with this woman and her father, the well known Dr. Fullerton Guster who was sure he had the map for probably the largest treasure the Spanish Conquistadors had found in America! But, there were others who also knew the existence of the treasure and were determined to get it for themselves and no one else. Come to Colombia pilot, it’s 1932 and the jungle of this country is open for adventurers and those with flying machines have a lead! Max needs YOU in this incredible adventure that will have you sitting at the edge of your cockpit to say the least.. Vamos! By Gera Godoy Canova.