Beswitched: schoolgirl time travel

Since Tom’s Midnight Garden thrilled me as a child, I’ve rather enjoyed time slip stories, although I don’t like fantasy. In Beswitched, a modern 21st century schoolgirl finds herself taking the place of another Flora, in a 1930s boarding school. I’m sure at this very moment there are people cursing clever Kate Saunders and wondering why this brilliant idea didn't occur to them. I loved it!
( spoilers )