<P> The Secret Seven consists of Peter (the society's leader), Janet (Peter's sister), Jack, Barbara, George, Pam and Colin . Jack's sister Susie and her best friend Binkie often make an appearance in the books; they hate the Secret Seven and delight in playing tricks designed to humiliate them, although much of this is fuelled by their almost obsessive desire to belong to the society . </P> <P> Unlike most other Blyton series, this one takes place during the school term time because the characters go to day schools . </P> <P> The names Secret Seven and Famous Five had already been used by author Charles Hamilton, under the pen - name Frank Richards, in his long - running series of stories featuring Billy Bunter and Greyfriars School . The Secret Seven was the name of a secret society that featured in a series of eleven stories published in The Magnet magazine in 1934; the term "Famous Five" dates from 1910 and is applied to a group of the leading characters . </P> <P> It is not clear whether Enid Blyton was influenced by Hamilton's work . Blyton's elder daughter, Gillian Baverstock, describes a conversation between the author and her publisher that led to the inception of Blyton's Secret Seven . The publisher's own children, the eldest of whom was named Peter, had formed a secret society with their friends . They met in an old shed, used secret passwords and had badges inscribed with "SS". </P>

When did enid blyton wrote the secret seven