Advancement of the Heavenly Ruins Immortal-Slaying Sword

This period of secluded cultivation had not been long. After just over twenty years, he temporarily concluded his training.

That day, Jiang Linglong came to Chen Nianzhi with evident delight in her eyes. "The Grand Luo Immortal Gold has finished gestating."

Not long ago, the Grand Luo Immortal Gold within the earth veins beneath Divine Bird Peak had finally finished gestating.

The Grand Luo Immortal Gold had originally been an unparalleled immortal gold embryo only halfway through its gestation. Jiang Linglong had paid it exceptional attention in recent years, continually strengthening the formation to nurture the treasure gold, and had finally brought the Grand Luo Immortal Gold to maturity ahead of time.

Now that the Grand Luo Immortal Gold had advanced to the rank of sixth-tier Pure Yang Treasure Gold, it was time to begin refining it and help Jiang Linglong advance the Heavenly Ruins Immortal-Slaying Sword.

Thinking this, Chen Nianzhi said, "Since that is the case, we should not delay."

The two wasted no time. They retrieved the Grand Luo Immortal Gold and headed straight into the subterranean fire veins beneath the Infernal Flame Sea.

Without sixth-tier subterranean fire veins, smelting sixth-tier treasure gold was extremely difficult. When they had advanced the Heavenly River Ren-Water Sword last time, merely smelting the treasure gold had taken them a full seven times seven, forty-nine years.

Together with the twenty-five years spent tempering the Five Elements essence, they had spent a total of seventy-four years before successfully advancing it.

Fortunately, with the old clan chief's constant harmonization, the Infernal Flame Sea had now risen to quasi-sixth tier. Moreover, both of their cultivation and strength had increased considerably, shortening the smelting process by no small amount.

Even so, it took them forty years to finish smelting it. Including the time spent tempering the