Reading some of the other reviews here made me chuckle, because the one thing I didn't like about this book is Jack. He's obnoxious, arrogant, and self-centred, and I was disappointed that he got to be some sort of hero.
However, the cross-over? The cross-over is AWESOME. I like the idea of the Literals, and I laughed and laughed when the genres showed up.
I love this series. May it never end.