The Promise -Danielle Steel

Young architect Michael Hillyard and artist Nancy  McAllister are determined to get married despite  his wealthy mother's disapproval. Then, minutes  before their wedding, a terrifying accident and a  cruel deception separate Michael and Nancy --  perhaps forever. Each pursues a new life -- Nancy in  California, Michael in New York. But eventually  nothing -- and no one -- can keep them apart as  they keep their vow never to say good-bye.

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