A One-Round Living Greyhawk Naerie Regional Adventure From the introduction: While the Serpent Guard has been destroyed, authorities in Felten & Gornor's Cove still require assistance in discovering their past. The trail of the serpent began in village of Radoc, on the outskirts of Hollow Highland and it is here where the secrets will be revealed. A one-round regional set in Principality of Naerie for Character levels 1 - 13.