Christopher Tolkien It says in the intro that Christopher Tolkien devised completely new material in some cases This is a very serious statement to make what evidence is there to back it up I m not an expert on the detail but my understanding is that his work involved compiling and editing only perhaps to the extent of constructing a single narrative out of fragments but he did not add to the work in any substantial way as completely new material suggests If there is no evidence of new material then that statement should be removed or amended as seriously misleading