Jaclyn Moriarty is the best-selling author of many novels for children, young adults and adults. She has been the recipient of the NSW Premier's Literary Award, the Queensland Literary Award, and the Aurealis Award for Fantasy. Her books have been named Boston Globe Honor Books, White Raven selections and Best Books for Young Adults by the American Library Association.

Jaclyn grew up in Sydney, Australia with four sisters (including authors Liane and Nicola Moriarty), one brother, two dogs and twelve chickens. She has lived in the US, UK and Canada, but now lives in Sydney again, along with her son, Charlie. She is very fond of chocolate, blueberries and sleep.

Karl James Mountford lives in the UK.