There are very very few series that can maintain momentum after the first few books without becoming repetative. This series is not one of them. I don't know how they manage to do it, but this husband-wife writing team manages to keep each book fresh, page-turning and fun. Love these books and if it's possible, this is one of my very favorite additions to the series so far. I have yet to read an Ilona Andrews book, in either series, that I didn't love.