But sometimes, maybe most times, it isn't that clear. It is dark and you are near the edge of a cliff, but you're moving slowly, not sure which direction you're heading in. Your steps are tentative but they are still blind in the night. You don't realize how close you are to the edge, how the soft earth could give away, how you could just slip a bit and suddenly plunge into the dark.

Writing a novel in general is like trying to reach a mountain top you'll never quite reach - so you try again and maybe get a little closer.

Kate Atkinson is an absolute must-read. I love everything she writes.

I used to wonder why Lucy liked those songs so much. You know what I mean? She sits in the dark and listens and cries. Music does that to her...I didn't understand for a long time. But I do now. The sad songs are a safe hurt. It's a diversion. It's controlled. And maybe it helps you imagine that real pain will be like that. But it's not. Lucy knows that, of course. You can't prepare for real pain. You just have to let it rip you apart.

What I want to do is tell stories about normal people in the American suburbs. I don't write the book where it's a conspiracy reaching the prime minister; I don't write the book with the big serial killer who lops off heads. My setting is a very placid pool of suburbia, family life. And within that I can make pretty big splashes.

The state of New Jersey is really two places - terrible cities and wonderful suburbs. I live in the suburbs, the final battleground of the American dream, where people get married and have kids and try to scratch out a happy life for themselves. It's very romantic in that way, but a bit naive. I like to play with that in my work.

And I love the twist. I love to fool you once, I love to fool you twice, and on the very last page, quite often - very last paragraph sometimes - I like to just play with your perception one more time in a way that makes everything that came before just a little bit different.