When I came to write my Thomas Cromwell books, I moved onto the center ground of English history, but I was never there before. I didn't feel it was my history particularly, coming from Northern Britain, being of Irish extraction, being a cradle Catholic. The image of England I grew up with felt somewhere else. There was an official England in postcards, but it wasn't one I had visited. But I decided to march onto the center ground and occupy it whether it was mine or not.