Roy Grace author Peter James reveals how Queen Camilla inspired new thriller novel

Just who has derailed the royal train with Queen Camilla on board, is this really an assassination attempt - or could there be an even more sinister murder afoot? Fortunately no-one is likely to be more thrilled to find themselves taking a leading role in their own royal whodunit than Her Majesty The Queen. A voracious reader, who is partial to a good crime thriller - the twistier, the better - she is, the Mail can reveal, about to star in the latest 'Roy Grace' novel, the multi-million selling literary sensation by British writer Peter James.