This reminded me a lot of ROOM. Lacking the chroniclers limitations, we can read between the lines, anticipate and fear much that escapes them. It's likely that people that enjoyed/hated that one will feel similarly about this one.
I lack knowledge or real life contact to make a judgment on the verisimilitude of this one, but it was an interesting peak, hopeful and also painful.
The interspersed chapters on maths and science I found surprisingly easy to understand and entertaining, though I doubt it would be the majority vote.
Two bit comments:
- The teacher deserves an award.
- I thought I felt overwhelmed the first times I walked around Buenos Aires at sundown. Then again, the kid managed to get where he was going eventually, by public transportation even, when I know several adults that threw the towel and ran for a cab.
This could work well for Amateur Sleuth, Diverse Voices, I guess Chilling Children? I picked it up thinking it set in London. At least we do get there.