The uses of a Fifth-Order Spirit Fire were extensive. It was useful for alchemy, artifact refining, and even injuring enemies.
Lei Yuting was tempted as well, and sent a voice transmission to Liu Mi.
Wang Qingshan was no exception. He sent a voice transmission to Liu Mi. "Madam Liu, how about I trade you two Ten-Thousand-Year Jade Yin Flowers, a section of thirty-thousand-year-old Mystic Yin Wood, and three hundred jin of Profound Nether Cold Water?"
He had traveled for many years and acquired quite a few good things in exchange.
After careful consideration, Liu Mi agreed to trade with Wang Qingshan.
Lei Yuting glanced at Wang Qingshan but said nothing.
After completing the exchange, Liu Mi sat down. Thunder Roc Honored Lord rose to his feet, flicked his sleeve, and sent a small black cauldron flying out. It hovered high in the air.
"Fellow Daoist Lei, what's inside?"
Zhang Zihao was filled with curiosity.
"One drop of Profound Nether Heavy Water! Refining it into a heavy water-attribute treasure can increase its power."
Lei Yuting explained that Profound Nether Heavy Water was a relatively high-grade Heavy Water, unlike ordinary Heavy Water. Profound Nether Heavy Water was supremely yin and cold, and could use water to control water.
"Profound Nether Heavy Water! That's Seventh-Order Refining Materials. I heard that it takes a Body Integration Cultivator a thousand years to refine it."
Zhang Zihao said in astonishment that ordinary Heavy Water was formed by condensing seawater and river water, while Profound Nether Heavy Water was formed by condensing Profound Nether Water. To condense a single drop of Profound Nether Heavy Water, one first needed a Body Integration Cultivator who cultivated a Water-Attribute Technique, and second, one needed to find enough Profound Nether Water. Neither could be missing.
Profound Nether Water was one of