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 of Mary Pollock (middle name plus first married name), in addition to the eleven published under her own name that year. So popular were Pollock's books that one reviewer was prompted to observe that "Enid Blyton had better look to her laurels". But Blyton's readers were not so easily deceived and many complained about the subterfuge to her and her publisher, with the result that all six books published under the name of Mary Pollock – two in 1940 and four in 1943 – were reissued under Blyton's name. Later in 1940 Blyton published the first of her boarding school