So many years of preparation, for what was called adult life: was it for this?

When I began to read as an adult, I read almost exclusively novelists of a generation back. I did the Russians, then I started getting more up to date. When you become published and become a reviewer, piles of books come along and you are pushed by fashion and what you are commissioned to do.

We have a number of very powerful women in the world now - Mrs. [Angela] Merkel, who the Germans call Mutti. What did we call Mrs. [Margaret] Thatcher? When she was minister of education, she stopped the children's free school milk. This may sound quaint, but after the war we were such a malnourished nation that part of the founding of the welfare state were public health initiatives. Every little schoolchild got milk. Mrs. Thatcher stopped it. They called her "Maggie Thatcher, milk snatcher."

When you are writing laws you are testing words to find their utmost power. Like spells, they have to make things happen in the real world, and like spells, they only work if people believe in them.

If you get stuck, get away from your desk. Take a walk, take a bath, go to sleep, make a pie, draw, listen to music, meditate, exercise; whatever you do, don't just stick there scowling at the problem. But don't make telephone calls or go to a party; if you do, other people's words will pour in where your lost words should be.

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.

I only became a novelist because I thought I had missed my chance to become a historian.