In 2011, I did an internship in Seven Dials, a junction in London where seven roads come together. I'd given up on writing after multiple rejections for my first novel, and I was starting to consider a career in publishing instead, but Seven Dials gave me such a strong idea for a setting that I couldn't resist picking up my pen again.

I often look at places and kind of mentally convert them to fantasy versions of themselves.

People question what I thought of Oxford. Students used to talk about the 'Oxford bubble' because the place can make you feel cut off from the rest of the world. I would forget there were places like London that were not centred round libraries and essays.

My silver cord - the link between my body and my spirit - was extremely sensitive. It was what allowed me to sense dreamscapes at a distance. It could also snap me back into my skin.

My mother's death put me in touch with my most savage self. As I've grown up and come to terms with her death and accepted it, the pieces of her that I keep don't exist materially.

With grief, you have reason to despair; it's a human thing.

I think at the prospect of bringing children into the world, your mortality comes very much to the forefront, absolutely.

I've never landed in a series that I could have dreamt in my life. That's why, when people say, 'Well what are roles you're dying to play?' I say, I don't even have such a list, because everything that's ever been great that I had a shot at came completely out of the blue. I could not have predicted it.