When the campfires grow dim, stories are told. Stories of lost cities, great heroes and legends of old. One of these is the story of Knurlheim. Once the proud capital of the Dwarfs, now a ruin- abandoned long ago. Filled with vast riches and treasure. It’s secrets forgotten with the decline of the Dwarfs, long ago. No one knows is certain if it ever exsisted at all.
A large vertical cave has a constant, strong wind blowing out of it from the bowels of the earth. If one was to jump into the currents they would have a controlled ascent on the winds till they reached a height where their weight and the winds force reached equilibrium. Impossible to climb down naturally. What is it? Natural winds from the earth or a complex magical protection for an underground lair?