While engraving the artifact patterns, Zhou Changqing also tossed the nine tribulations gang jade into the cauldron.
The jade was lustrous white throughout, with silvery-blue patterns resembling lightning emerging within it. Threads of incandescent current occasionally leaped out and danced across its surface.
Compared with the other two materials, the nine tribulations gang jade was much easier to refine.
Under the tempering of the cauldron's lightning, the gang jade soon melted into a mass of lustrous white liquid resembling milk.
Then Zhou Changqing divided his attention, engraving the artifact patterns while guiding the milky liquid into the heavy sword's embryonic form.
The liquid sank inside, coating and enveloping every line of the artifact patterns Zhou Changqing had engraved.
In the blink of an eye, the sun and moon traded places.
Before the great cauldron, which still flashed with lightning and golden radiance, Zhou Changqing's face had grown somewhat pale.
An entire day and night of intensive engraving had strained even his powerful soul.
His dou qi, by contrast, had suffered the least depletion.
At a certain moment.
Within Zhou Changqing's perception, the countless intricate artifact patterns inside the embryonic heavy sword finally joined into a seamless whole and abruptly erupted with dazzling light!
"It worked!"
At that moment, Zhou Changqing relaxed inwardly, and an excited smile appeared at the corners of his mouth.
Fortunately, his joy did not go to his head, and he continued to control everything within the cauldron steadily.
Zhou Changqing adjusted the temperature inside the cauldron, slowly lowering it.
As the embryonic sword gradually cooled, Zhou Changqing made fine adjustments to its body.
Half an hour later.
The molten embryonic heavy sword had vanished, replaced by a heavy sword that was blackish gray throughout.
He waved away the cauldron and beckoned to the heavy sword.
The