Is this book really 432 pages long? Because I raced through it in a day, and it felt like it moved so quickly! I've always been impressed with RJB's world building, but this one might be my favorite yet. What do we call a world where plants provide light, vines are cultivated to be deadly security systems, the rich can afford large mushrooms that regulate the air temperature, and the murder weapon is a tree? Ugh, I love it. There are also strong notes of the usual "big monsters threaten humanity" suspects - Pacific Rim, Kaiju No. 8, and most evidently Attack on Titan, but this story chooses to move the first responders into the background and spend more time on infrastructure folks and a detective/assistant pair.

And what a stunning pair they are. Fans of the eccentric detective+earnest put-upon assistant, get ready to enjoy yourselves. Ana is a genius in all rights, but never in too much of a magical way that it seems she arrived at her conclusions unfairly. The clues are always available, and I did manage to pick out a couple reveals before they were dropped. As our POV character, Din is easily my favorite - his dedication to justice makes him very easy to cheer for, and I appreciated that he wasn't portrayed as completely brainless.

Despite all the giant monsters attacking in the background, this is a mystery first and foremost, and I appreciate that the narrative commits to this. I suspect that the mystery and the background plot will eventually merge in future books, but for now, I was happy just to read a really solid mystery with some great twists, and a really cool detective.

Thanks to NetGalley and Random House Publishing Group for an advance copy. All thoughts in this review are my own!