Hi, this is Garth Nix, author of SABRIEL, SHADE'S CHILDREN, THE KEYS TO THE KINGDOM SERIES and many more books!
Garth Nix is an Australian author of numerous books, most of them fantasy and science fiction, for children, young adults and adults. Find out more at www.garthnix.com
EDIT: Thanks for the questions! Come and see me in the USA in October, tour details here http://www.garthnix.com/appearances-contact/