pursed her lips and shook her head. "It has to have sulfur, or it won't work."Sulfur was an important medicinal herb used in ancient Chinese medicine to treat diseases. It was used to treat dampness,..., then said, "It's not safe to stay here long, let's go."Han Yun finally came to her senses and hurriedly stopped Mo Yunjing's path. "You're going the wrong way. This Li Ying by my side knows the way....