If the point of reviewing is to record my feelings about a text to remember I've read it, this review is pointless. Jemisin's work is unforgettable and everything from the language to the actual narratives to the characters to the pain to the way she uses fantasy as the reflection science fiction is supposed to be: to distort the mirror held up to life and show us not merely who we REALLY are, but who we can dream to be...
There is a tired and not entirely wrong trope that science fiction is about the future and imagining possibilities and fantasy is about the past and the return to the idealized (mythic) era. There are many authors working against that narrative: some are, sadly, producing hideously regressive science fiction, while others are stretching fantasy's capacity to imagine the other. Jemisin leads that charge and, I have said this before, she is the best in the field.