It's not easy to diagnose because depending where the endometrial deposits are, the symptoms can be quite different. It's an unrecognized problem among teenage girls, and it's something that every young woman who has painful menstruation should be aware of... It's a condition that is curable if it's caught early. If not, if it's allowed to run on, it can cause infertility, and it can really, really mess up your life.

Memory isn't a theme; it's part of the human condition.

Cravats grow higher, as if they mean to protect the throat. The highest cravats in public life will be worn by Citizen Antoine Saint-Just, of the National Convention and the Committee of Public Safety. In the dark and harrowing days of '94, an obscene feminine inversion will appear: a thin crimson ribbon, worn round a bare white neck.

To my astonishment, when Wolf Hall came out, people asked if I made it up - [Thomas More] burning of heretics. It was well documented. And he was proud of it! The Brits love lost causes.

Rafe asks him, could the king's freedom be obtained, sir, with more economy of means? Less bloodshed? Look, he says: once you have exhausted the process of negotiation and compromise, one you have fixed on the destruction of an enemy, that destruction must be swift and it must be perfect. Before you even glance in his direction, you should have his name on a warrant, the ports blocked, his wife and friends bought, his heir under your protection, his money in your strong room and his dog running to your whistle. Before he wakes in the morning, you should have the axe in your hand.

It's complementary. It's fairly clear where the boundaries are. When I start telling you the contents of his head, I am making it up. But I try to make it up based on what is on the record. So even my wildest speculations [on Thomas Cromwell] will have a root somewhere.

For myself, the only way I know how to make a book is to construct it like a collage: a bit of dialogue here, a scrap of narrative, an isolated description of a common object, an elaborate running metaphor which threads between the sequences and holds different narrative lines together.