Delwyne is the author of award-nominated children's and teenage fiction books and is passionate about writing books for children and young adults that are action-packed and fun to read. Her teenage novel, Wheels, was published in 2006 to rave reviews. It has been short-listed for two awards, one in Japan, and has been sold into South Africa. Delwyne has also had two primary books published with Aussie School Books and two primary readers with Oxford University Press. This is Delwyne's first novel with Puffin. Delwyne lives in the Eastern suburbs of Melbourne with her husband, three children, and two cavalier dogs Lady and Baron. As well as writing, Delwyne works as a health professional. She is presently working on a novel for teenage readers.