books.google.co.uk - In Black Elk Speaks and When the Tree Flowered, John C. Neihardt recorded the teachings of the Oglala holy man Black Elk, who had, in a vision, seen himself as the "sixth grandfather," the spiritual representative of the earth and of mankind. Raymond J. DeMallie makes available for the first time the...http://books.google.co.uk/books/about/The_Sixth_Grandfather.html?id=bXElCJTANaoC&utm_source=gb-gplus-shareThe Sixth Grandfather