Swallows and Amazons series and observed, "It is the portrayal of this spirit which makes play a matter of desperate yet enjoyable earnestness which gives their distinctive stamp to Mr. Ransome's books. ... Because he understands the whole-heartedness of youth he can invest a momentary experiment, such as young Roger's Indian scout work, with real suspense." In 1963, the BBC screened a television series starring Susan George as 'Kitty' (changed from Titty), which was violently disliked by Arthur Ransome. The six-part series aired in September and October 1963. In 1974, EMI produced a film version of the "Swallows and Amazons", starring Virginia McKenna and
Swallows and Amazons series adventures in the series, the children change roles and become explorers or miners. In the novel "Winter Holiday", the children meet Dick and Dorothea Callum, siblings visiting the area. Dick and Dorothea are often referred to as "The Ds" and appear in subsequent novels. Dick considers himself a scientist, while Dorothea sees herself as a writer. Two of the books feature the Callums without the Swallows or Amazons: "Coot Club" and "The Big Six". They are set in an accurate representation of the Norfolk Broads, particularly the small village of Horning and its surrounding rivers and broads. Two other books