Mountbatten was once asked about this and he was quite open about what happened. He said he was invited to attend a meeting but didn't know what it was about. After 10 minutes he got the picture, stood up, announced that "this is treason" and walked out. He never heard any more and assumed that it has all fizzled out.

It goes to show how clueless they were that, to overthrow the govt, they felt they had to both remove the Queen and replace her with someone from the same line.

Peter Wright had a few things to say about some of the background to it in his book, Spycatcher (if ever a book was misnamed, that was it). They hated Wilson with a passion and had managed to convince themselves, probably with KGB encouragement, that he was a Soviet agent. By and large I think the security services pose far more danger to the country they serve than to any external enemy

keep to the Fen Causeway