I saw the movie first. And wanting more in that world. And no sequel in sight, I decided to start up the series. And come out with no clear winner. One has strengths over the other.

In both, they build a world that is like no other I have seen. After an apocalypse or two, cities became structures that roll on treads. And hunt other cities. That is how they gain resources. The book really explores this concept of "municipal Darwinism". But human-wise, it looks at the story of 3 young adults. Two stewing in the privilege of a big city, and discovering the thorns it hides. And one that long knew about them, but only cares about revenge.

I will say, Shrike's story is better done in the movie. But the book and movie has somewhat different endings. Neither the better, imo. One is more kind, the other more brutal. I was better able to emotionally connect with the characters in the movie. But that improved in the book midway thru.

I very much enjoyed this book. And look forward to more in the series.