(2016) In book four, the twins have made it to second form. New girls Gladys and Mirabel have great talents for acting and music, and Elsie, the form's unpopular Head Girl, learns to be less spiteful. Expect more mischief at St Clare's! Between 1941 and 1946, Enid Blyton wrote six novels set at St Clare's. This edition features the original text and is unillustrated.