Ursula was born and grew up in Sydney in a family of writers, and wanted to be a writer from the age of six. She is now the author of over 50 books for children and young adults and her work is published all over the world.

She has won several national literary awards, including the Victorian, Queensland and South Australian State Awards for literature, and has also won the NSW Premier's Literary Award a record five times, more than any other writer in the history of the awards.

Internationally she has been nominated for both the Hans Christian Andersen award and the Astrid Lindgren prize. She has a PhD in English literature and currently lives in Sydney.

Terry Denton has been creating children’s books for over 30 years. He has worked with many of Australia's top authors, written much-loved picture books and junior fiction novels, won more than 40 children’s choice awards and been shortlisted many times in the Children’s Book Council of Australia awards.

His Felix and Alexander won Picture Book of the Year in 1986. His books include The Upside-down History of Downunder with Alison Lloyd, The Worm Who Knew Karate with Jill Lever, as well as the Gasp! books and the animated TV series, and the world-famous Just! books and Treehouse series with Andy Griffiths.

His work is characterised by a devious sense of humour, an adventurous and inventive drawing style and an informed flair for what interests and amuses kids.