Khaled Hosseini's And the Mountains Echoed begins with a fable that a father tells his two children: A farmer who works hard to eke out a living for his family is forced to give up one of his five children to an evil giant. He and his wife decide to choose randomly, and the unlucky one happens to be their favorite son. Eventually, the farmer, half mad with grief, tracks down the giant and finds his son in a lush garden full of happy children, with no memory of his birth family.