I really liked this book, and was sad that I couldn't love it. Koja's a beautiful writer, and she is very good at adolescents; her heroine, Lily, is self-absorbed and enthuasiastic, sometimes cruel, compassionate and thoughtless, intelligent and incredibly unable to see beyond her own narrow scope. The novel is about that narrowness of her vision, the surprising ways she's able to see past it despite a lack of encouragement on the part of her community, and also about the ways she completely fails to understand what's going on around her.
The plot has an unfortunate tone of 'white girl is saved from her whiteness by non-white girl' -- Lily is a student at a very elite upper-class girl's school, who is suddenly made aware of her own class & race privilege by the arrival of Hazel. Hazel is an orphan being raised by her gay older brother & his partner, and unfortunately is something of a Magical Brown Person, serving as a vector for Lily to eat new foods, meet new people, experience a rawer urban environment, and so forth. But for me, the book was saved from racism by two things:
1. Hazel's family, although unconventional, is shown to be highly economically privileged; it's clear that they're not living in any sort of poverty, and thus there's no romanticisation of class difference.
2. Koja seems aware of the problems inherent to this sort of story, and brings them to the forefront in an awesome scene in which Hazel demonstrates conformity with Lily's family's values & Lily throws a fit, leading to a huge fight between her & Hazel which is never really explained within the text. My reading is that rather than Koja telling the story in which Hazel is a Magical Brown Person who is freeing Lily from class/race constraints, it's *Lily* who sees the story that way. Thus, when Hazel demonstrates that she might, perhaps, aspire to be part of Lily's world & is willing to conform to the rules, Lily flips out because Hazel is no longer in the right role. How dare Hazel aspire to be upper-class and WASPy rather than being a rude, rebellious, earthy brown person? I felt this reading very strongly, but since the argument is never deconstructed by the characters I'm not sure how much of this is just me and how much of it is in the text.
I liked the book, and I want to read more Koja.