I'm currently reading "The Leader" by Guy Walthers, a tale of alternate history where Edward VIII has refused to abdicate and appointed Oswald Mosley as Prime Minister. Essentially it's a story of how quickly Britain turns into a fascist state and the struggle by those who oppose it. As a piece of writing, it isn't brilliant with some passages seemingly contradictory, but it does have some quite disturbing imagery, notably the description given of Hurricanes and Spitfires conducting a flypast.
Anyway, it's not too bad as potential source material for anyone building a BUF army for VBCW.