I know a number of you are interested in Girl's School novels and some of you collect them. This may be old news to you, but I came across a company in Edinburgh which reprints them - titles by Susan Scarlett (Noel Streatfeild), O. Douglas (Anna Buchan), Susan Pleydell, D.E. Stevenson and several more. Not my kind of thing - but
Greyladies may be of interest to you.
ETA: "Girls’ School Stories - written for adults
Adult books by children’s authors
A spot of vintage crime"
Looks like a mix of other stuff they wrote and school stories aimed at adults not children