Adventure in the world of Greyhawk! Powerful forces are set in motion as your party searches for the legendary Blades of Corusk. Take them on the perilous journey from Rookroost to the Lair of the Shadow Dragon in the frozen northlands. Will they survive the ramifications of events that they have initiated? Those who hold the magical blades will not easily give them up. Plucking them from the grasp of a jealous dragon or stealing them from the center of the subterranean City of the Ore Horde will strain your adventurers to their limits! TSR 9317