He looked down and did something quite out of character for him: he took hold of Shmuel's tiny hand in his and squeezed it tightly. "You're my best friend, Shmuel," he said. "My best friend for life.

I don't buy into the idea that an Irish writer should write about Ireland, or a gay writer should write about being gay. But when I found the right story, I saw it as an opportunity to write about being a teenager and being gay. Most people, whether you're gay or straight or whatever, have experienced that relationship where one person is much more interested than the other.

The first thing he noticed was how quiet it was. This was nothing like the kind of quiet he heard when he woke up in the middle of the night after a bad dream. When that happened, there were always strange, unidentifiable sounds seeping into his room from the tiny gaps where the windowpanes weren't sealed together correctly. At those moments he could always tell there was life outside, even if all that life was fast asleep. It was a silence that wasn't silence at all.

I started reading Dickens when I was about 12, and I particularly liked all of the orphan books. I always liked books about young people who are left on their own with the world, and the four children's books I've written feature that very thing: children that are abandoned by their families or running away from their families or ignored by their families and having to grow up quicker than they should, like David Copperfield - having to be the hero of their own story.

He looked the boy up and down as if he had never seen a child before and wasn't quite sure what he was supposed to do with one: eat it, ignore it or kick it down the stairs.

I don't change the language for children books. I don't make the language simpler. I use words that they might have to look up in the dictionary. The books are shorter, but there's just not that much difference other than that to be honest. And the funny thing is, I have adult writer friends [to whom I would say], "Would you think of writing a children's book?" and they go, "No, God, I wouldn't know how." They're quite intimidated by the concept of it. And when I say to children's books writers, would they write an adult book, they say no because they think they're too good for it.

Well you've been brought here against your will, just like I have. If you ask me, we're all in the same boat. And it's leaking.