Jim Mack is a naÞive young scholar and the son of a foolish, aspiring shopkeeper. Doyler Doyle is the rough-diamond son—revolutionary and blasphemous—of Mr. Mack’s old army pal. Out at the Forty Foot, that great jut of rock where gentlemen bathe in the nude, the two boys make a pact: Doyler will teach Jim to swim, and in a year, on Easter of 1916, they will swim to the distant beacon of Muglins Rock and claim that island for themselves. All the while Mr. Mack, who has grand plans for a corner shop empire, remains unaware of the depth of the boys’ burgeoning friendship and of the changing landscape of a nation.