I've enjoyed most of Paul Christopher's stories. I don't think they would win any prizes but they move along at a fair lick. I think the title of this one however is misleading. The Templar knights have precious little to do with the story which is basically, 'girl gets kidnapped, good guys rescue her, bad guys get their just desserts'. That said it is not all that bad a story, it has incident and pace but, be warned, it will stretch your credulity, I'd classify it as 'thriller lite' if I may invent a phrase.
Good as a 'beach read', that is to say you can still ogle the pretty girls thereon (or boys, if that is your 'orientation') without losing the thread.