Book 3 can be a bit of a slog if you get wrapped up in trying to decipher the Iron Tangle. The point is that the entire thing runs on vibes, not hard rules. The point is to confuse the reader right alongside the crawlers. But lots of readers ended up struggling as a result, because they wanted to figure out the specific rules of the floor. Anyone who claims to have figured out how it works has either missed a rule or made up some of their own.

Books 4 and 5 are where the series truly hits its stride. I’d say 7 is probably my favorite. 8 was probably the worst so far, mostly because it spends a lot of time setting up potential plot hooks for later. But that also leaves lots of potential room for growth with later books.