Margaret Mahy has lived in New Zealand her entire life. A former children's librarian, she decided to become a full-time writer in 1980. From picture books to YA novels, the age groups for which she writes vary as much as the characters in her stories. She won the British Library Association's Carnegie medal for The Haunting and The Changeover: A Supernatural Romance. She has also written such books as Alchemy and Maddigan's Fantasia. An author whose books have received many accolades and praise around the world, Mahy was awarded the Order of New Zealand, the highest honor a citizen of that country can receive, and in 2006 she was announced the winner of the International Board on Books for Young People's Hans Christian Andersen Award, given to a living author whose works have made a lasting contribution to children's literature.