The Six Sacred Stones is a novel by Australian thriller author Matthew Reilly. It is a sequel to Seven Ancient Wonders (released as Seven Deadly Wonders in the United States of America)and The Five Greatest Warriors is its sequel. The novel was released on 23 October 2007 in most bookstores in Australia (though some stores released it later ( November 1)) and was released in January 2008 in the US and UK.