Having read the excellent Sister Mine by Nalo Hopkinson, and with my audible credits needing using up, I took a punt on this older work by the same author.
I'm a good way through, and I'm not sure how to categorise it. It's certainly science fiction, and I think it would appeal to many YA readers. Gender and race are very important factors, too. Tan-Tan starts off aged seven, though, and some YA readers might not push through the early chapters, to get to the grittier kernel of the story, when Tan-Tan reaches puberty and experiences what I will euphemistically call "dark times" solely to avoid the spoiler. Tan-Tan becomes not a nice person.
In the third (and I imagine final) phase to the book, which I'm just entering, redemption appears - at least, as a possibility.
Oh, and the narrator - Robin Miles - is excellent. I am not an expert in such things, but I am guessing some entirely credible sounding Louisiana / Afro-Caribbean patois.