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I loved this one too (I think the Midwinter one was my favourite though). I never got to analyze it as an adult, but I recall thinking that it was 'quite a grown up book' as a teenager. My book looked like this: https://www.ibbylietuva.lt/content/uploads/2019/08/Tetis-ir-jura_1998.png
You have good tastes :-)
I loved this one too (I think the Midwinter one was my favourite though). I never got to analyze it as an adult, but I recall thinking that it was 'quite a grown up book' as a teenager. My book looked like this: https://www.ibbylietuva.lt/content/uploads/2019/08/Tetis-ir-jura_1998.png
You have good tastes :-)