The Twins at St Clare's Patricia and Isabel O'Sullivan aren't looking forward at all to their first term at a new boarding-school. But they're surprised what fun St. Clare's can be...The O'Sullivan Twins There are three new girls in Pat and Isabel's second term at St. Clare's, including their own cousin Alison. They're all as different as can be - and there are surprises in store for all of them! Contents: The Twins at St. Clare's The O'Sullivan Twins