In Thirty Years A Slave Hughes provides vivid descriptions and explicit accounts of how the McGee plantation in Mississippi, and the McGee mansion in Tennessee functioned--accounts of the lives of the many slaves that lived, suffered and sometimes died under the cruel and unusual punishments meted out by Boss and his monstrously unstable and vindictive wife. He described the profane manner in which this peculiar institution dehumanized, on a daily basis, not only the black man but even more so the white man.