"A set of symbols scratched on the wall of a crypt in southern France. A flag bearing a red cross on a castle fortress high on a stone ledge. And deep in the heart of the Vatican, a team of agents charged with making sure no one discovers what connects them all. Ben Hope is a magnet for trouble. Years since leaving the SAS, he can still feel when danger is stalking him. But stumbling across someone researching the Knights Templar seems like a problem for historians rather than his military skills."