Xu Yi had to let Seventh Elder Yun and the others keep believing in the Hidden Spirit Pearl. Only then could he make further use of it.
As for how Seventh Elder Yun and the others would interpret the spirit-stone ash and the array-flag imprint, he couldn't be bothered to think about that.
He believed that by then, no matter how hard they racked their brains, they would come up with an explanation they could live with.
Sure enough, Sixth Elder Yun had used those clues to deduce a Hidden Treasure Array that Xu Yi had never even heard of, successfully reassuring himself and the others.
Back then, after Xu Yi had left the cave from the opposite end, he had planned to find another battlefield.
He hadn't gone far when a flash of insight struck him. He suddenly realized that the previous battlefield had clearly been the ideal place for a new fight.
As the site of the incident and a location the Yun Family had already investigated, it was a natural hiding place.
In the minds of those people, the place was already safe. Exploiting that blind spot was bound to produce results beyond his expectations.
Once the thought arose, he could hardly suppress it. He carefully slipped back into the cave and, sure enough, sensed that mysterious feeling again, confirming that the Yun Family members had gathered there.
Xu Yi realized he couldn't let this opportunity slip away. This battle would decide the matter once and for all.
His tactics were, in a word, a complete repeat of his old trick. He still began by striking at their Ingot Robes.
The Shapeshifting Bone Sword shot out in an instant, transforming into golden light. Three consecutive strikes destroyed three Ingot Robes.
Before the Yun Family members could react