Swallows and Amazons

Swallows and Amazons begins with the four Walker children, John, Susan, Titty and Roger, holidaying with their mother, infant sister Brigit and a nurse at Holly Howe, a farmhouse on the shores of an unnamed lake in the English Lake District. Receiving permission from their absent father, Commander Walker R.N., they set sail in the dinghy Swallow to camp on a deserted island further down the lake.

Camping, sailing, fishing and exploring is soon interupted when the Walkers (the Swallows) are attacked by Nancy and Peggy Blackett, the self-styled Amazon Pirates. The Amazons live at Beckfoot on the shores of the lake and claim ownership of the island, which they call Wild Cat Island. The Swallows and the Amazons soon form an alliance, united in opposition to the Amazons' irrasible Uncle Jim, who is living on his houseboat whilst writing a book. They conclude that Uncle Jim is a retired pirate and henceforth call him Captain Flint.