In my previous Historical Fiction book, I wrote about Leonardo da Vinci being head of the Freemason society and protecting a great treasure. In the story, the Freemasons battled both a faction of the Church of Rome and the newly growing Mafia from Sicily. In developing the "Da Vinci Connections" story, I started thinking about the origins of missing treasure. There are hints of treasure being found by the Knights Templar while defending Jerusalem 100 years earlier. This w