Their lost voices must continue to be heard.

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.

Today people can see and protest all the different interests that want war to happen, the people it financially benefits. The First World War wasn't fought for that reason. The Second World War wasn't fought for that reason. Your entire country and way of life could be overtaken.

Children's book writers tend to feel quite superior, and adult writers tend to feel they wouldn't know how to write a children's book - which might surprise you because I think a lot of people think it's the other way around.

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.

The dot that became a speck that became a blob that became a figure that became a boy

War today is such a more visible thing. We see it on television, on CNN. In 1914, war was a concept. There was a naivety and stupidity that war would be a great lark. It's not that different from Gone With The Wind, where all the young men can't wait to go off to fight and then two hours later in the movie, we see how the reality of that has come home to them.