This is a girls’ school story written by Mabel Esther Allan when she was 15 and never submitted to any publisher.
It is like no other school story you have ever read. Here’s part of the blurb:
“ ... a girls’ school story inspired by D. K. Broster’s Jacobite trilogy, it shows her passion for Scotland - or how she imagined Scotland to be - with its clans and tartans, Gaelic language, supernatural folk-lore and dramatic scenery. She later noted, “I seem to have been living in a peculiar world of my own.”