These caves twist and turn, carving a path ever deeper into the earth. However, the name comes not from the dizzying turns and switchbacks of the caves, but from the gasses rising up from deep, deep under ground. They aren't too harmful; meaning only that they won't kill you. However, they do cause a mind to hallucinate, and depending on how disoriented a wolf gets, getting lost is a likely-hood, and That can kill you, via starvation. There are no prey animals down here. So be careful, adventurer.
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C minor put it in c minor