Besides the odd story here and there perhaps, this is the first piece of children's lit I've read... since maybe I was a child.
I didn't remember much of anything about the first time I read it, just under twenty years ago, but I'll never forget the story behind why it came into my life in the first place. I got it as a gift, or reward probably, when I would've rather had something else, so I begrudged it (who am I writing this for? I already know this story), but reading it again now, I can see why it easily won me over. It's dark, ambiguous, existential, with a heavy sense of loss and the awe, and dread, of time; definitely in the school of not sugarcoating the world for children.
I don't know if it's just that it's a children's book (as noted, I haven't read any other children's lit), but it's structurally quite haphazard and meandering, with not much connective tissue for the various elements to make much sense diegetically (where are all the other kids? did Ceb leave before them or something? how come the Compound so easily integrated Fens and Okalians? what's the deal with the Soo?). Myers' super dodgy geography and extremely lenient survival necessities contribute a lot to this - there's no way for these kids to be travelling the kind of distances to make this journey meaningful without water and with only handfuls of berries once every few days. But maybe all of that makes it more accessible to kids.
Even being for kids, I still feel Myers could've built in a few more moments where Jon could understand the Fens as being equally human. And I guess all in all, it's the tone that really sticks, rather than what happens. Which is probably why I didn't remember anything about the story, but never forgot it.