Maps out in detail the contents of 476 square miles of wilderness found on Campaign Map 1 of Judges Guild's City-State of the Invincible Overlord. This book covers the area around the villages of Byrny and Trollslore, which are on the road between the City-State and the dwarven stronghold of Thunderhold. It contains detailed information for the two villages and the surrounding wilderness along with a three-level mini-dungeon: The Mines of Custalcon.

Book 1 of the Wilderness series.