Matt GianniMatt Gianni is the author of dual timeline historical fiction/contemporary thriller novels built around his Castellum One team, a covert investigations unit financed by the Vatican and run by elements of the US Intelligence Community. Lever Templar, he first in the series, has been described by readers as The Da Vinci Code meets National Treasure. After a long career in aeronautical engineering and flight instruction, writing instructional articles for flying magazines, he began writing fiction in 2013. Read More Read Less