Burial Dragon Emperor Gold, Divine Tears Immortal Gold, Yutian Immortal Gold, Huang Tian Dao Gold, and the Black Ice Iron unique to the Northern Region... These were all rare divine metals nurtured by heaven and earth within the martial world.
The divine metals refined by artifact refiners through the "refining technique," and the refined divine metals forged by fusing divine metals with other divine metals, were worlds apart from them.
The sword worn by Chen Yule, the Saint Son of the Chen Family—one of the Five Great Families and Seven Sects of Chu—had been forged from "Burial Dragon Emperor Gold."
As for the throne of the current Emperor of Chu, it had been forged from "Yutian Immortal Gold."
When Lin Bai had reforged the "Heaven Measuring Ruler," he had also fused in a portion of "Divine Tears Immortal Gold," causing the ruler's might to multiply instantly.
Lin Bai had never thought of using such rare divine metals to forge flying swords, because he knew... finding even one of these rare divine metals was extremely difficult, let alone enough to forge four flying swords. That would be harder than climbing to heaven.
However, Saint Elder Luo Yuanjing had suddenly raised the matter in the treasury today. Lin Bai immediately understood, realizing that Luo Yuanjing was guiding him.
Lin Bai immediately followed Saint Elder Luo Yuanjing's lead.
Saint Elder Luo Yuanjing chuckled. "Burial Dragon Emperor Gold, Divine Tears Immortal Gold, and the other divine metals are also known as 'immortal iron' or 'immortal gold.'"
"They are precious because they are the raw materials used to forge the legendary 'immortal artifacts.'"
Raw materials for forging immortal artifacts!... Lin Bai stood dumbfounded.
Saint Elder Luo Yuanjing continued, "In ancient times, the Spirit World had not yet severed its connection with the Immortal World. Martial