I thought I would find this book enjoyable as it seemed to be aimed at the "Twilight" reader but after reading it didn't quite fulfil my expectations. Overall I thought it was a well written book with interesting and realistic characters and in parts was quite gripping. It was well researched with its references to monotheistic religious ethos and the history of Knights, Crusaders and Templars. However these did detract from the main story and became too obstructive. I even found myself losing interest several times especially towards the end.
The main theme of the book is Billi's relationship with her father and his excessive harshness towards her. He insists that she follows his pre-destined path despite her protestations. She is torn between duty, loyalty and her own unfulfilled desires. Billi is a believable and engrossing heroine but she finds herself in a world dominated by men. It's a disappointment and unrealistic that she doesn't have any female friends of her own age.
Billi is quite a well developed character and so is her father. Although everyone else seems to be too much of a stereotype! Kay and Michael (initially) both come across as Edward-Cullen wannabees!!. I thought the romance in the book seemed quite unnatural and contrived.
My biggest disappointment was with how the bad guy was defeated. I felt cheated and deflated by it!!. When you have an extremely powerful villain about to conclude his devious, apocalyptic plan, there needs to be a endeavour of the most heroic kind to turn things round!. In this case the heroism seems small scale and in part assisted by an equally powerful nemesis. It was a real shame as the up till the arrival of this nemesis, it was heading to a good climax.
I don't think this would make a good movie. It lacks in big-scale action, powerful drama and credible romance and is perhaps too dark for a mass appeal!
I also don't think this book will appeal to my friends and other teenafers. They may find it too dull, violent and over-filled with religious themes.