Days at St Clare's school are never boring for twins Pat and Isabel O'Sullivan in Enid Blyton's popular school story series. In the sixth book, Pat breaks her arm and misses the first weeks of the term. Will Pat be sad when the new girl Amanda becomes Isabel's new best friend? More pranks are expected at St Clare's! Between 1941 and 1946, Enid Blyton wrote six novels set at St Clare's. Books 5, 6, and 9 are authorized continuations of the series written by Pamela Cox and include plots that unfold between Blyton's original novels. These books were published in 2000/2008 and contain no illustrations.