>>2679940 (OP)
I did a quick dig for stuff I read some time ago, but Gulag has done a pretty thorough job of wiping. From memory, a member of the group called the Round Table in Britain, founded somewhere around the beginning of the last century, was the author, there's elements of predictive programming to that group's plan, similar to a later version of the project as described by Dr. Richard Day in a speech in the 1980's, as related by Dr. Lawrence Dunegan.
Another recollection is something about one of the series being written by maybe it was an MI5 spook. I haven't read any of the books, I'm a fact junkie, but I'm betting JKR could be tripped up with details from the book she wouldn't remember writing.