It's a shame as lots of other things about Eustacia are actually well-written, and it's in many ways a classic Tyrol book, with good set-pieces like Bernhilda's wedding, Joey being told she's getting an extra year at school but has to be Head Girl, Middles, the snowfight, the halfterm trip, Robin's millionth NDE etc. But the school treats Eustacia absolutely monstrously. It's grimly hilarious that when one or two girls, both prefects and Middles, suggest treating her kindly at various crisis meetings, everyone poohpoohs it and says they already have -- which of course is nonsense. She's been sent to Coventry for long periods and deprived of her only pleasure, using the library, or even finding anywhere quiet to read.
She'd obviously have (eventually) done absolutely fine at a highly academic school that offered really good teaching in maths and classics, not the poor CS which sees lessons as secondary to health.
(Incidentally, I only realised from reading the edition on Faded Page that there were quite so many cuts in my Armada paperback. It left out a really interesting paragraph about how Simone had edited The Chaletian the term before when Joey was ill, and accepted funny contributions, and Joey thought she'd done a bad job of editing and been secretly furious, because she prides herself on the school mag's 'serious tone'! She then announces to the school that no one is allowed to send in limericks, fun facts or invented local legends. It must have been terribly po-faced! I always imagined it would be full of funny in-jokes and stories. And yet Joey, when it's suggested she ask Eustacia for an article for the Chaletian, rejects the idea because she doesn't want an essay on Euclid or Sophocles. Who knows what was actually in it other than sports notes?)
I also noticed in the uncut edition that the halfterm trips are arranged, weirdly, according to nationality, as explicitly described by Madge! The English and American girls (and Robin!) are going to one place, the Italians somewhere else, and 'the rest' somewhere else entirely! And Madge describes the English and American girls as 'all one nationality'. Even if what she means is 'native English speakers', it's still a bit weird for the multilingual CS!