Setting off on a trip that's part research, part musical and a large part, dare I say it, pleasure. First stop London and I'm reflecting that there are famous places that you can really only visit in the imagination, such as the Palace of Whitehall. Sure you can see the Banqueting House but so much of the rest is gone. That's why I love poring over old plans, which I had to do in order to send my heroine up the royals' Privy Stairs to the Prince's Lodgings in The King's Shadow.