Children's literature R. M. Ballantyne and G. A. Henty specializing in the production of adventure fiction for boys. This inspired writers who normally catered to adult audiences to write for children, and an example is Robert Louis Stevenson's (1850–94) classic pirate story "Treasure Island" (1883). In the years after the First World War, writers such as Arthur Ransome (1884–1967) developed the adventure genre by setting the adventure in Britain rather than distant countries. Ransome began publishing in 1930 his Swallows and Amazons series of children's books about the school-holiday adventures of children, mostly in the English Lake District and the Norfolk Broads.
Swallows and Amazons book for UK daily newspaper "The Manchester Guardian" (forerunner of "The Guardian") Malcolm Muggeridge wrote: "Children's books are probably the most difficult of all to write; they are certainly the most difficult to review. For children alone can properly judge their worth, and children, very wisely, never review. An adult has to refer back to his own childhood and ask himself: Would I have enjoyed such a book then? The answer, in the case of "Swallow and Amazons", [sic] is very definitely, Yes. Moreover, the book is entirely charming quite apart from its qualities as child literature. This is rare;