Rapid City, South Dakota, June 9, 1972 ...238 people died, 5 are still missing. In the midst of one of the worst floods in the history of the United States, one young woman clung to the roof of a house, desperately holding on to the vestiges of her life. At the same time, the massive flood surging down from the Black Hills and through the city swept away everything and everybody she loved. Somehow, Merlyn Magner survived that horrific night, but she lost her brother, mother, and father to the rampaging water. Questions coursed through her mind then and for much of the rest of her life: Why...