This volume collects books 4–6 in the series – Second Form at St. Clare’s, Third Form at St. Clare’s and Kitty at St. Clare’s. The latter two are written by Pamela Cox.The O’Sullivan twins and their friends are back in this collection recounting their middle years at the famous boarding school.There are some new arrivals who cause a commotion, but as tricks are played and hidden talents revealed, the girls find a way to get along together- or most of them do!