The Knights Templar have been shrouded in myth for 900 years. Christian Crusaders condemned by the lies and disloyalty of their one-time allies, the Templars are inseparable from the legends of the Holy Grail and the Shroud of Turin. Now, a surprising manuscript unearthed in the Vatican shows that the Templars were liquidated at the hands of a weak pope in a 14th century tale of corporate greed.