S3 E18: The Great Outside

While discussing the matters at hand, Agon, Elleinad, and Gardin are overheard by the stagecoach driver Norris, who brought them into town. He seems to be aware of some of the strange occurrences that happened in the south, and is even knowledgeable of Agon's family who moved into a mansion in the south of town. But what exactly is “the great outside?”