This book was okay. As a mathematician, it was kind of cute to see the references to famous problems and mathematicians. However, I didn't feel like this book drew me in or kept my attention. Maybe it was lost in translation, but I found the sentences short and unemotional. When I was reading it, it sounded monotone in my head. I couldn't get excited about the story and I didn't feel anything for any of the characters. They all seemed cold to me.

I didn't mind this book, but it wasn't my favorite, and I'm not attached enough to want to read the next books in the series.