That was why Ling Zichen kept saying these things to Huo Yuhao now, even after being brought to him.
Just as Ling Zichen was about to say more, Huo Yuhao interrupted her and said, "All right, I think I understand what you're trying to say."
"That Source Spring you mentioned should be the energy we refined from Heavenly Refinement..."
As Huo Yuhao spoke, Ling Zichen nodded hurriedly, then even instinctively elaborated on the function of what she called the Source Spring and her ideas for putting its power to use.
Although Huo Yuhao already knew what this Source Spring could do and had put it to use, he still listened until Ling Zichen finished.
Only then did Huo Yuhao continue, "You explained it very well. The power system on that Soul Tool integrated energy extracted from ten pieces of Heavenly Refinement metal, and it took twenty-five pieces of Heavenly Refinement metal in total to make it..."
At Huo Yuhao's words, the expressions on Cao Dezhi's and Zang Xin's faces visibly stiffened. Hearing of Heavenly Refinement expenditure on that scale was rather difficult for them to comprehend for a moment.
Tang Wulin and Zhen Hua, the two Divine Blacksmiths standing nearby, reacted the same way. After all, even they would have felt the sting of using so much Heavenly Refinement metal to make something like that.
Ling Zichen's reaction, however, was the complete opposite. After hearing Huo Yuhao's words, she thought for a moment before saying, "Considering only the extraction of that level of Source Spring, the amount of Heavenly Refinement metal required is already very small."
"Could it be that Heavenly Refinement metal itself has an extremely high energy density, resulting in a tremendous change in its Source Spring yield ratio..."
Ling Zichen was still murmuring somewhat to herself, while