Wilbur Addison Smith is a South African novelist specialising in historical fiction about the international involvement in Southern Africa across four centuries, seen from the viewpoints of both black and white families. source
Working on an adaptation is not as satisfying, because it's not your original work: you're interpreting. With 'L.A. Confidential,' I loved the book. In that case, I felt I was guardian of the work, staying as true to the novel as I could. I've since met the novelist, and he loves the movie and the script.