One of the oldest secrets of alchemy is that every living thing, from the most complex creatures right down to the simplest leaf, carries the seeds of its creation within itself.

That is as true for fiction or non-fiction. The writer has to really know their subject. It is really important to remember that the readers are a lot smarter than the writer. Also, good writing has to do with rewriting. You will never get it right the first time. So you rewrite and rewrite again until you get it right. Until you, and the reader, will be able to visualize what you're writing about.

Research is always the best part. As we dug deeper into the history and mythology behind each of the hallows, we discovered more and more stories - some of them deserving of novels in themselves.

I was brought up in a home where I saw my parents read and I was taken to bookshops and libraries, so I grew up feeling very comfortable around books. Also, Ireland is a country which has honoured its writers and poets, so when someone says they wanted to be a writer, its not mocked or looked down upon.

We had little or no emotion. We lacked the capacity to feel fear, to experience love, to enjoy the sensations of happiness and delight.The finest warriors are not only those who do not fear, but those who are without anger.

Books are just dead words on paper and it is the readers who bring the stories alive. Previously, writers wrote a book and sent it out into the world. A couple of months after publication letters from readers might arrive. And, leaving aside the professional reviews, it is really the reader's opinions that the writer needs. They vote for a book - and a writer - with their hard earned cash every time they go into a bookstore (or online - that's my age showing!) and buy a book.

All great literary works influence us as writers, not their stories as much as their storytelling ability.