The murder of my husband by the railways has altered the way I think about everything. I had always thought that the majority of people were decent and honourable. In the wake of the crash, what made me angry more than anything else was the realisation that this was not true. I still find it very hard to come to terms with.

The train we had so confidently boarded had been speeding at almost 100 miles an hour and it had derailed. Someone, I can't remember who, showed me a newspaper photograph of the carriage we had been sitting in tilted on its side on a station platform next to a large notice that said Welcome to Potters Bar.

There are many times when I think I would have rather died with my husband. It would have been pleasanter, simpler. But it would have been worse for the children and the family in general.

I am not a victim. I am an angry survivor.

All writers are liars. They twist events to suit themselves. They make use of their own tragedies to make a better story... They are terrible people.

I was cleaning out the pigsty at a farm in Wales, where my mother had rented a room, when the results of my final school exam were handed to me by the postman, along with the news that I had a state scholarship to Oxford. I had waited for this letter for so many weeks that I had abandoned hope, deciding that I had failed ignominiously.

Children often have a much stronger concept of morality than adults.

I like stirring the pot - I think it's part of my duty, to shake people up a bit - make them look at things in a different way.

I would hate to live in the country, unless I was living on a farm.

I've never found it made the slightest difference being a woman - though there is a sort of feeling that as you get older you're not so interesting.

One good reason for writing novels based on your life is that you have something to read in old age when you've forgotten what happened.

People's lives are in the care of the railways when they get on a train. The railways should remember that.

Adults get more confused by social worker jargon. Unlike children, they are also less likely to see two sides of an argument, and they no longer think they can make the world a better place. That can make them rather boring, I suppose.

At 11, I passed the scholarship - only just; I wasn't very good at maths - to Ilford County High for Girls. When the Second World War started we were evacuated, first of all to Ipswich, and then to Aberdare, Queen of the Valleys, in south Wales.

But I don't write about sex for today's teenagers. Or Doc Martens boots either. I'm more interested in exploring how exactly the world is run, which doesn't really change that much from one generation to another.

I dislike the word 'victim.' I dislike being told that I 'lost' my husband - as if I had idly abandoned you by the side of the railway track like an unwanted pair of old shoes.

I grew up on a suburban street with lace curtains and dull neighbours, so I made up stories to tell my friend, in which they became serial killers and burglars. She told her mother, who then told mine.

I hope in my books I help children to see their strengths, and show them I have some idea of what they may occasionally be going through. Especially at tricky moments when it is easier to go back and evade things rather than go forwards and confront them.

I like writing for children. It seems to me that most people underestimate their understanding and the strength of their feelings and in my books for them I try to put this right.

I met my second husband on a bus. We looked at each other and that was it. We were both married to other people at the time and behaved badly, but we didn't seem to have any choice. We were very happy for nearly 50 years and would still be together if it wasn't for the bloody railways.