In the summer of 1951, Miranda Schuyler arrives on elite, secretive Winthrop Island, still reeling from the loss of her father in the Second World War. When her beautiful mother marries Hugh Fisher, Miranda is catapulted into a heady new world of pedigrees and cocktails, status and swimming pools. Isobel Fisher, Miranda’s new stepsister, is eager to draw Miranda into the arcane customs of Winthrop society. Uneasy among Isobel’s privileged friends, she finds herself drawn to Joseph Vargas, who has enjoyed an intense, complex friendship with Isobel. As the summer winds to its end, Miranda is caught in a catastrophe that will shatter Winthrop’s hard-won tranquility and banish her from the island for nearly two decades.

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