Lun'Ahdru is an expansive subterranean network of impossibly deep rifts, unimaginably large caverns, frigid halls of ice, scorching rivers of magma, and everything else in between. The original inhabitants of the region outdate many written histories, but much of its underground sprawl was left unexplored prior to "The Nights of Chaos". Even now, despite its significant population and constant exploration, it holds many secrets that not even its eldest societies have uncovered. Contemporary society arrived to Lun'Ahdru about 300 years before the start of this campaign, and maintains itself within a relatively minuscule portion of The Burrowing Depths, known as The Commons.
Its various ecosystems are sometimes separated by large lateral distances, though more often than not they exist on entirely different vertical strata. Many large settlements have found a foothold within the less tectonically active swaths of stone, but other regions shift and morph to open new pathways or close well-traveled arteries. The area of and immediately surrounding The Commons is well-known; travel and trade are common despite the shifting causeways. Beyond that immediate sphere, knowledge of the terrain becomes exponentially more esoteric and unreliable due to poor or nonexistent records, lack of large settlements, and/or shifts in the environment itself.
The Admin Mimic
Ghost of Brian