94: Trials For The Chalet School: Elinor M Brent-Dyer: ISBN 0-00-692152-3
Ooops, that one didn't last long. About an hour and a half. A crippled and unhappy new girl, scarlet fever, an avalanche, a big practical joke, a pantomime and a powercut, a nasty accident and an operation, and a hopeful ending. Trials indeed.