Birthright: The Claim, a Dungeons & Dragons 5e Campaign

Kingdoms of Mortals, Realms of Monsters   There are five great nations of humanity within the boundaries of Cerilia and these lands are, by and large, settled and mapped. However, there exist stretches of wilderness, particularly within provinces that possess a high Source rating, where simple cartography fails. The land is ancient and ever-changing, railing against the imposed stagnancy of the human kingdoms, seeking to return to its primeval state.   In these places, monsters roam and the Sidhelien hunt them. At times, hosts of dangerous creatures come together into a force large enough to pose a sizeable threat to settled lands, forcing regents to intervene with armies of equal might.   Typically, however, these uncharted regions act as lairs for these monsters, where treasures from forgotten ages of Cerilia lay at eternal rest within darkened ruins. Sometimes these places also hold gates to the Shadow World, allowing passage to and from that haunted realm during the darkest nights of the year.   Stretches of vast forests, mountain ranges, or steaming swamps make up portions of the continent's interior. Travel through these places is often foolish, though this does not stop the occasional would-be regent from marching into the dark wilderness with a band of prospectors and mercenaries to stake their claim. Few of these poor fools are seen again, no doubt falling victim to the monsters that dwell there.