Much has been written about the group of 14th-century warrior monks known as the Knights Templar. Some authors, such as Dan Brown in The Da Vinci Code, portray them as folk heroes wrongly accused. Others disagree, saying the Templar story is ultimately one of greed, deception, and idolatry. Just who were the Knights Templar? And what is their legacy? In The Templar Papers, author and historian Oddvar Olsen has assembled a veritable...