'The Glad School centres on the adventures and misadventures of
two madcap friends, Frances "Wuzzie" and Dorothy "Twinkle", who are both
fond of pranks. The story starts with their midnight feast being
interrupted when one of their schoolmates, dressed as a ghost, steals
their food. The girls are determined to discover the culprit and seek
retribution, though they target two innocent girls before discovering
the real culprit.
The Glad School contains many chapter-length vignettes of school life and activities.' It is set in the Presbyterian Girls' College in Warwick where Mackness was Headmistress. Source:
Bonza Schooldays.