The Guardian Children's Fiction Prize or Guardian Award is a literary award that annually recognises one fiction book written for children or young adults (at least age seven) and published in the United Kingdom. It is conferred upon the author of the book by The Guardian newspaper, which established it in 1965 and inaugurated it in 1967. It is an once-in-a-lifetime award.
http://en.wikipedia.org/wiki/Guardian_Children's_Fiction_Prize