Un Lun Dun is a young adult fantasy novel by China Miéville, released in 2007. The title is derived from 'UnLondon,' the name of the alternate realm where the book is set. It also contains illustrations by Miéville. It was first released as a hardback in the United Kingdom in January 2007 by Macmillan Publishers, then in the United States on 13 February 2007 by Del Rey Books. The novel also won the 2008 Locus Award for Best Young Adult Book.