This book confused me. I'm pretty sure it was meant to, but that doesn't help much. I'm confused as to how literally I'm supposed to take the two-city division, I'm confused as to what it symbolizes, I'm confused as to how it works or even got started, and I'm confused as to why I found it so hypnotic. This is basically a whodunnit, but I couldn't put it down. There weren't any kraken or horses or naked mole-rats, but it's still compellingly readable (though puzzling). I enjoyed reading it, and I'm enjoying puzzling over it. For that, I do recommend it.