The time is the turn of the last century, the setting a rocky New Hampshire coastline resort area nicknamed "Fortune's Rocks." Olympia Biddeford, age 15, is walking the beach, feeling the first stirrings of her womanhood. The strong-willed daughter of an upstanding Boston couple, she soon "learns of desire" as she begins a passionate affair with a married writer, John Haskell, three times her age. From the moment they meet (he is a visiting friend of her father's), they experience a sexual spark. Olympia feels "liquid" in his presence. Soon, they fall into sinful trysting. Shreve (The Pilot's Wife) serves up these opening events with breathless immediacy. Once the plot gets a chance to develop. Olympia gets pregnant, gives up child, fights to get child back, it settles down considerably, turning into a modernized The Scarlet Letter, a tale of a woman attaining feminist independence by living outside her period's societal mores.