Pamela Cox

Darrell has left, and Felicity is head of the third form. And what a lot she has to deal with - June and new girl Freddie playing tricks continually, the sickly Bonnie shadowing her, and the stuck-up Amy, who has a strange family secret.

New girl Millicent clashes with the feisty June over the school's priorities: a music concert or tennis tournament? But both pale into insignificance when it's found there's a thief in the fifth form.

Susan is excited to be in charge of the winter concert, but Miss Tallant, a new teacher, has very strong ideas about it. And when she interferes in a midnight feast, they realise there's a spy in their midst. But who could it be?