So much to say about this book—I am completely enraptured by the world-building in this series. I continue loving Wu Zetian's anti-hero character arc. I love the ensemble cast and their morally grey character developments too.
Qin Zheng is an incredibly complicated villain, and I still hesitate to call him a villain. He's an absolutist with strong moral convictions and absolutely identically matched to Zetian in his hunger for power. Their constant push and pull for the upper hand is a constant theme, and they're so damn intense that it was hard to put down the book.

I am disappointed to see that some people expected this series to center romance in its storytelling, or think that Wu Zetian needs to work towards redemption. Idk man, open the schools. Teach literary analysis. Learn subtext.