The Chalet School does it again (by Elinor M Brent-Dyer)

(Amazon UK link) I’m slowly re-reading the lengthy ‘Chalet School’ series by Elinor M Brent-Dyer, at a rate of around ten per year. I’ve just finished the 32nd book in the original series, ‘The Chalet School does it again’. I last read it in 2014. It’s not one I reread extensively when I was younger, and I had forgotten most of the story. 
The book takes place in the second term for the Swiss Oberland branch of the Chalet School, and follows directly on from ‘The Chalet School and Barbara’, which ...