The Secret Seven short story titled "The Secret of the Old Mill". It followed an earlier short story, "At Seaside Cottage", which introduced the leading characters Peter and Janet prior to the formation of the society. There followed a further five short stories and fifteen full-length books. The Secret Seven appeared in seven short stories by Blyton, including a mini-novella explaining how the society was formed. These were left uncollected until 1997, when all but "At Seaside Cottage" were published in a single volume by Hodder Children's Books under the title of "Secret Seven: Short Story Collection". Scamper – Janet and Peter's pet
Enid Blyton on several of her early works. Also in that year Blyton began writing in annuals for Cassell and George Newnes, and her first piece of writing, "Peronel and his Pot of Glue", was accepted for publication in "Teachers' World". Her success was boosted in 1923 when her poems were published alongside those of Rudyard Kipling, Walter de la Mare and G. K. Chesterton in a special issue of "Teachers' World". Blyton's educational texts were quite influential in the 1920s and '30s, her most sizeable being the three-volume "The Teacher's Treasury" (1926), the six-volume "Modern Teaching" (1928), the ten-volume "Pictorial Knowledge"