Kate is an Australian author. She is best known for her historical novel Bitter Greens. She is also the author of several children's books, including The Gypsy Crown, The Puzzle Ring, The Starthorn Tree, The Wildkin's Curse, The Starkin Crown and Dragon Gold. Kate has also published two heroic fantasy series, The Witches of Eileanan and Rhiannon's Ride, the poetry collection Radiance, and the novel Full Fathom Five under her maiden name, Kate Humphrey. She is a five-time Aurealis Award winner. She is married with three children, and lives in Sydney, New South Wales. She is also a direct descendant of Charlotte Barton, the author of Australia's earliest known children's book.