Cavern's bowels

The inner bowels, or really the back of the cavern that's past the black veil where no light ever penetrates. The only way for one to see is if they had the night vision of wolves. You'll still encounter wild life and if you go back far enough, stumble over carcasses and skeletons of all sorts of animals. No one knows just how deep this cavern goes, but many have tried to find it out and none have returned. If you're here then you're almost too far gone. Your chances of survival are very slim at best. Turn back now while you can still see sunlight, or chances are you'll never make it back out alive.