Farrigo was a wizard who devoted his life to studying Dragonfire. Until only a few years ago his life's work was unknown to the world. However, due to the exploits of the hero of Firetop Mountain a small leather-bound book was retrieved from the depths of the mountain. That book was The Making and Casting of Dragonfire. Those lucky enough to have read the book would have learnt a spell that makes a Dragon's fire ball stay in the mouth of the Dragon producing it.
Sadly, Di Maggio did not live long enough to see his work reach the wider magical fraternity, and he died within Firetop Mountain in around 280AC.