Enid Blyton every year in addition to many other novels, short stories and books. In 1946 Blyton launched the first in the Malory Towers series of six books based around the schoolgirl Darrell Rivers, "First Term at Malory Towers", which became extremely popular, particularly with girls. The first book in Blyton's Barney Mysteries series, "The Rockingdown Mystery", was published in 1949, as was the first of her fifteen Secret Seven novels. The Secret Seven Society consists of Peter, his sister Janet, and their friends Colin, George, Jack, Pam and Barbara, who meet regularly in a shed in the garden to discuss peculiar
Enid Blyton story books and the first novel in the Naughtiest Girl series, "The Naughtiest Girl in the School", which followed the exploits of the mischievous schoolgirl Elizabeth Allen at the fictional Whyteleafe School. The first of her six novels in the St. Clare's series, "The Twins at St. Clare's", appeared the following year, featuring the twin sisters Patricia and Isabel O'Sullivan. In 1942 Blyton released the first book in the Mary Mouse series, "Mary Mouse and the Dolls' House", about a mouse exiled from her mousehole who becomes a maid at a dolls' house. Twenty-three books in the series were produced