Not particularly clear, this volume is about the music industry in the last decade with a healthy dose of magic thrown in. Our main character, Emily, has surrendered half her personality to the Adversary. There's lots of references to 1980s music videos but it's all a bit too clever-clever for my taste.
I gave up on about two-thirds of the way through as I hoped that it would become clearer and less silly. Sorry but not for me.