It wasn't about believing this or that, it wasn't even about good and evil and right and wrong, it was about finding the strength to bear the discomfort that came with being in the world.

I want my name to mean me.

There was a time in my life when I was going in and out of houses that were extraordinarily different - from a working-class terrace in Northampton to the homes of friends who were really very wealthy. It was quite an odd position to be in, I realise looking back, and quite a nice one.

Then he asked if I didn’t like things changing. And I said I wouldn’t mind things changing if I became an astronaut, for example, which is one of the biggest changes you can imagine, apart from becoming a girl or dying.

I suffer depression only in the sense that I am a writer. We don't have proper jobs to go to. We are on our own all day. Show me a writer who doesn't get depressed: who has a completely stable mood. They'd be a garage mechanic or something.

With English literature, if you do a bit of shonky spelling, no one dies, but if you're half-way through a maths calculation and you stick in an extra zero, everything just crashes into the ravine.

I better make the plot good. I wanted to make it grip people on the first page and have a big turning point in the middle, as there is, and construct the whole thing like a bit of a roller coaster ride...