MOTHER LOVE By Candace Flynt Farrar Straus Giroux. 342 pp. $17.95 IT IS LATE in the afternoon of Christmas Day in a hillside cemetery near Greensboro, N.C. Three attractive young women, sisters, approach the plain bronze marker of their mother's grave. They are carrying three yellow roses. In the gathering dusk, they pause to confer. "She's not under our feet," Katherine, the oldest, says suddenly. "She's right here with us." Then she reconsiders. "No she isn't . . . If she were here, nobody would be having any fun." What sort of parent could inspire such an unflattering memory? Through the si...
