Sure enough, Ning Cheng only watched for a few breaths before he stood up and rushed directly to the center of the black lake. Yin Kongchan and Xu Yingdie, who were watching by the lake, stared at Ning Cheng nervously. Once Ning Cheng fell into the Soul Abyss Lake, they would not be able to get it even if they found the Nine Nether Essence of the Earth's Core....