'We have to save the Free Glades . . . we must never surrender!'Undertown is destroyed! Dishevelled and homeless, those who once lived there--gnokgoblins, cloddertrogs, woodtrolls, waifs and many others--huddle by the ruins, preparing for a mass exodus across the Edgeworld to a new home in the Free Glades. Rook Barkwater, a young librarian knight, knows the journey will be perilous-- across the desolation of the Mire, through the swirling mists of the Edgelands and on into the treacherous Deepwoods. Vengeful shrykes are :flocking to swoop on the travelers and predators are everywhere--wild muglumps, lumpskulls, spiderbats and flesh-eating plants.For those who survive and attempt to forge new lives in Free Glades, there are further dangers to come. For the in Nations, hordes of bloodthirsty goblins, are gather- Can Rook and his friends possibly withstand the goblin onslaught and preserve freedom in the Edgeworld?