*Gurgle.*
Chen Mu exhaled another stream of bubbles from his mouth and nose. Martial Artists in the Five Viscera Realm could breathe underwater by circulating their Inner Breath with the natural world. However, the pressure was quite significant deep underground. If Chen Mu had just barely broken through to the Five Viscera Realm, he would have felt a bit of a burden when breathing here, but now, after undergoing two refinements, he felt no pressure at all.
He walked a few yards along the leftmost rock wall, then his gaze fell on a spot on the wall. Suddenly, he drew his sword and stabbed the rock wall. The stab was infused with the power of Yuan Gang True Essence but penetrated only three inches deep.
Chen Mu's expression did not change as he continued to wield his Flowing Fire Blade, chopping several times and digging out a piece of ore that appeared blue and silvery. He weighed it in his hand, feeling a cold touch.
"Is this a piece of Cold Jade Ore?"