A great ending to what is probably the best sci-fi series I've ever read.

Series review:

Here are the best things about this series:

- Representation: the characters are black, queer, polyamorous, transgendered, disabled.

- World building: the setting and the magic system are unique and interesting.

Book review:

At first I really didn't like turning the actual, physical planet Earth into a homicidal, genocidal maniac. It felt a little heavy handed. But it allowed for the impact of the final scene: our heroes have pacified and made peace with the actual Earth; but the greater, unresolved challenge--the challenge our heroes for us, the readers--is to change society. To overcome and eradicate thousands of years of violent, systemic oppression.