Fast-paced, easy read that just zipped along - it felt a lot shorter than it was, so I must have been fairly engaged. The protagonist is sympathetic, I liked the shades-of-grey villain, and I was kept guessing as to the brother's guilt or innocence, which was entertaining. The very last twist, however, regarding Carly, was something I figured out well in advance. That's the problem with twist endings, they're very hard to do effectively.