This was the best book of the series, but in order to get to it I had to read an abysmal middle book.

Michael and Gabriel Corrigan are locked in the eternal struggle of freedom vs. captivity and it's easy to see the religious parallels of the brothers Lucifer and Christ, angel fallen vs. angel risen.

Also there was a pause while Gabriel delivered the author's message in the form of a speech to the worldwide web. And while the speech was reminiscent of Ayn Rand only in counter-belief, and it did go on for quite some time, it did wrap up the entire purpose of the series succinctly. I guess if you're going to have an author preach his beliefs to you, this is about as good as it's going to get.

I wouldn't have started the series, however, if I had known this was going to be the payoff.