A novel of predestination. So, so, so contrived. Hardly a chapter goes by without a deus ex machina. The only character who actually gets to make a decision does so out of our viewing, and even that decision is pretty much portrayed as being inevitable. And let's not get into the us vs. them moral code...
About the only saving grace is the book's strong sense of place, being rooted very firmly in England. And maybe the language, though frankly that's just a bit overdone.