I loved the book, it was very hard to put down. Two strong voices dominated the story and I couldn't help but enjoy the differences. They would swap point of view in each chapter and with Grace and Robert, you knew who was speaking because they were so different.
I loved Grace's passion about food and one line was perfect, A month of stale drive through food. Paraphrased a bit, but that was the ultimate slam. And as passionate about food as Grace is, it makes complete sense, it at times made me hungry because I'd think about the food. But it didn't overwhelm the story.
Robert grew as a person and learned while being a typical teenager who just happened to have a Summoner uncle leave him enough to be dangerous legacy.
The action scenes were awesome, and after spending time in the Valley Mall, it totally needs a make over anyway. The secondary characters were compelling, especially in Frank Allen. I hope to see more of him in the next book. As a detective, watching his viewpoint on a known fact (Summoners are evil) waver, it was reassuring that even they didn't miss out on a chance to grow and develop as well.
I would recommend this book to anyone, it takes realistic cause and effect with a serendipitous alter reality that keeps the story streaming forward.