In the summer of 1951, Miranda Schuyler arrives on elite, secretive Winthrop Island as a schoolgirl from the margins of high society, still reeling from the loss of her father in the Second World War. When her beautiful mother marries Hugh Fisher, whose summer house on Winthrop overlooks the famous lighthouse, Miranda's catapulted into a heady new world of pedigrees and cocktails, status and swimming pools. Isobel Fisher, Miranda's new stepsister--all long legs and world-weary bravado, engaged to a wealthy Island scion--is eager to draw Miranda into the arcane customs of Winthrop society. But beneath the island's patrician surface, there are really two clans: the summer families with their steadfast ways and quiet obsessions, and the working class of Portuguese fishermen and domestic workers who earn their living on the water and in the laundries of the summer houses. from book jacket.