The cavern led to a twisting cave system a few miles underground. It was a very unsurprising event to learn that it too was infested with a variety of Hell-dwellers. Nevertheless, they proved no challenge to me. I followed a path in the cave system that took me further underground.
As I traveled deeper underground, the environment steadily became more Hellish. The smooth, carved out cave ceiling began to sprout Hellish stalactites. The cave's walls slowly transitioned from smooth terrestrial rock to rough, abrasive Hell rock. When the nightmarish transitions halted, I had come to a large, open area in the cave. I stood, dumbfounded, as I looked in the distance and clearly beheld a large Blood Keep.