The four Walker children—John, Susan, Titty, and Roger—are spending the summer with their mother in the Lake District while their father’s away on duty in the navy. After getting permission to use their accommodation’s dinghy, the Swallow , they also beg to be allowed to camp alone on a nearby island.

With permission granted by their understanding (and trusting) mother, their adventures begin. For one thing, they’re not the first to camp on the island. They soon encounter the prior inhabitants: Captain Nancy and her sister Peggy who sail the Amazon . While war between them is declared at first, they soon find themselves allies against a common enemy—the uncle of the Amazons, Captain Flint.

Swallows and Amazons was the first of what became a series of a dozen novels , known collectively under its title. While the fashion for juvenile fiction of this kind faded, Ransome’s novel has achieved classic status. It has frequently been adapted for television, film, and radio, and ranked 57th in the BBC’s “Big Read,” a search in 2003 for “the nation’s best-loved novel.” As Kate Haas noted in her essay on it in the Washington Post , its “celebration of friendship, imagination, fair play, and exploration” helps to explain its enduring appeal.