After inspecting all the materials Ling Yuling had brought, Lin Yun nodded slightly, then handed her a jade slip. "This is the method for refining grade-five Spell Pellets. You may inspect it carefully, Fellow Daoist Ling."
With that, he picked up the fist-sized piece of golden Geng Essence. A moment later, his brows lifted slightly. "So this is Geng Essence? A treasure of keen metal? It's actually a piece of raw Western Pole Geng Metal ore!"
Western Pole Geng Metal was a kind of immortal metal ore formed when innate western metal mingled with subterranean metal deposits within the earth veins, undergoing tens of millions of years of tempering and fusion.
Different smelting methods could refine this raw ore into various immortal sword-forging metals, including Tai Bai Primordial Essence, Taiyi Refined Gold, and Western True Gold.
Of these, Tai Bai Primordial Essence was the material used to forge the purple and azure swords, Purple Ying and Azure Cord. Western True Gold was used to forge the Southern Bright Lihuo Fire Sword, while Taiyi Refined Gold was one of the raw materials used to forge the Clearvoid Invisible Sword.
Lin Yun hefted the Geng Essence in his hand. It was remarkably dense and weighed heavily in his palm; this tiny piece alone weighed at least several dozen catties.
However, he estimated that it would yield at most three taels or so of Taiyi Refined Gold, just enough to refine the Clearvoid Invisible Sword once more.
His gaze involuntarily flicked toward Ling Yuling, who was concentrating on inspecting the grade-five Spell Pellet refinement method. His eyes flickered. The Star Palace has another piece of Geng Essence. How can I get my hands on it?
By then, Ling Yuling had finished inspecting the Spell Pellet refinement method. With her knowledge, she could find