About the adventure

From The Publisher On the arctic frontier, at the border between the mountains and the wastes beyond, looms Castle Thar-Gannon. For centuries, the Skull God ruled his domain from his blackened throne. But twenty years have passed since the routing of his armies, and the castle lies abandoned with riches unclaimed. Yet, death still lurks in the shadows of the ruins. An ancient doom arises from the depths of this place... Gods of the Forbidden North is a massive, three-volume mega-adventure series written for the Old-School Essentials: Advanced Fantasy tabletop role-playing game by Necrotic Gnome. It details a campaign setting, a wilderness hex-crawl, a sprawling underworld connecting to multiple entrances on the surface, and most importantly, an enormous megadungeon.