I thought the book was ok. The first 50% was in a way interesting because you are still just getting to know the characters. But it kind of dragged on. It seems the heros in this series are all already so in love and ready to live happily ever after and the heroines have to be the ones who say no no no I will not have you. I can see why this type or relationship would appeal to others. I think it is nice too but then I expect the story to end quickly.
The Templar theme is cool but kind of overshadows the relationship development. I lost interests at around 50% and skim-read the rest very quickly. I like Iain and Elizabeth as characters. I wish there was more about them than about how Adrian and Lucy were about to get married (lead characters from book 2) and the Templar secret.