Inference, Demonstration!

"This Gu..."

"This Gu is still transforming. Once the two Gus merge, barring accidents, an entirely new Gu insect should be born. This counts as a fortuitous opportunity for you."

The Longevity Sect Master took the Gu insect and examined it. With just a few words, he identified it, then passed it to Xu Lingtian. His voice carried an inexplicable chill. "Junior Brother, you once studied that Saint Spirit Gu. Take a look and see whether this Gu is the one from Heaven's Secrets Lineage!"

Xu Lingtian shook his head, his tone certain. "No need to look. This is the one!"

"After the Saint Spirit Sect collapsed, the method for refining Saint Spirit Gus was never passed down. Thus, every Saint Spirit Gu in today's Cultivation World originated from the Saint Spirit Sect!"

"And as far as I know, every Saint Spirit Gu refined by the Saint Spirit Sect bore a special marker, serving as a Gu sequence to prevent Saint Spirit Gus from leaking out."

"The Saint Spirit Gu of Heaven's Secrets Lineage was sequence 'Qian,' number thirty-eight."

"Senior Brother, record this Gu's soul fluctuations and compile them with this method. You will be able to discern the corresponding marker."

As his voice fell, a streak of spiritual light shot forth. Meeting no obstruction, it sank into the Longevity Sect Master's palm.

In merely a few breaths, the Longevity Sect Master seemed to have confirmed the matter. The chill in his eyes deepened severalfold.

At this moment, Xu Lingtian asked, "The two of them should have gone to the Outer Sea before, right?"

"They had not."

The Longevity Sect Master nodded with certainty. "The Outer Sea was not the focus before, nor had there been any major changes. The two of them, along with Heaven's Secrets Lineage, were mostly