The hardest part is remembering the higher achy of their army but thankfully there’s the cheat sheet up front and it’s normally only a few ranks throughout that are constantly mentioned. The mystery was quite well hidden that every time I think I was on the right track something happened or was revealed that completely derailed me. However that didn’t stop me from reading as it was more of unexpectedly switching tracks than a derailment, and towards the end I didn’t want to stop reading chapter after chapter.