Schooldays at St Clare's are never dull for twins Pat and Isabel O'Sullivan in Enid Blyton's much-loved boarding school series. In book one, the twins are simply not having it. St Clare's is beneath them and they're determined to cause a stir. But life at St Clare's is not as easy as they thought. They have several surprises and arguments before they admit their troubles are of their own making, and settle down to make friends. Expect mischief at St Clare's!