High above the Edgeworld, their woodspider-silk sails billowing, great sky ships speed through the air, each with a skilled stone pilot to control the flight-rock that gives the ship its buoyancy. None of these pilots is as skillful as the legendary stone pilot of the sky ship Galerider - but where did this mysterious figure come from and what lies beneath the heavy hood? Paperback , 80 pages Published March 2nd 2006 by Corgi Childrens (first published January 1st 2006)