Isobelle is an Australian writer who began her work on the Obernewtyn Chronicles at the age of fourteen. She continued to work on the series while completing a Bachelor of Arts, majoring in literature and philosophy. She has received numerous honors for her writing, including multiple Aurealis Awards and Children's Book Council of Australia Awards. She was Guest of Honour at the 2007 Australian National Science Fiction Convention. Isobelle is currently working on The Red Queen, the final book in the Obernewtyn Chronicles, and the screenplay for Greylands, on a Film Australia grant and is studying for her PhD at the University of Queensland.