The deepest darkest chasm on Earth. Its entrance is located at the middle of Earth's north pole. The Cave of Darkness's inner depths are unbearably hot compared to the extreme cold of the Land of Ice. It is bar none the most unforgiving and dangerous place on Earth thanks to its extreme depths and tough rock that even an experienced ki fighter would have a hard time budging. Rumors say those who enter never leave and go insane with hallucinations, while others speak of shapeshifting demons in its depths, or the promise of a sacred treasure that gives great power...