La 4e de couv. indique : "Cora is a slave on a cotton plantation in Georgia, an existence made even more hellish by her status as an outcast among her fellow Africans. And she is approaching womanhood, where greater pain and danger awaits. So when Caesar, a slave recently arrived from Virginia, tells her about the Underground Railroad, Cora takes the momentous decision to acompany him on his escape to the North."