Song Qingshu continually sent sound waves out from the City God Temple, covering dozens of miles in every direction. Then his expression shifted, and he rushed toward a spot west of the town.
Naturally, he was using Sound Transmission Soul Searching. Back in Lin'an, when Ren Yingying had been kidnapped, the confusion of not knowing where to begin searching and the despair of looking for a needle in the sea remained vivid in his memory.
Fortunately, luck had been on his side later, and he had successfully rescued Ren Yingying. But he could not place his hopes on such good fortune every time. He had reflected then on how he should handle such situations in the future.
After much thought, he recalled the method Li Qiushui had used in the original story to seek out Tianshan Tonglao—Sound Transmission Soul Searching. He had kept the matter in mind, and after later arriving in Western Xia and encountering Li Qiushui, he had finally learned this miraculous martial art from her.
What made it so remarkable was that inner energy and the technique could function somewhat like radar. Of course, it was nowhere near as advanced as radar, but it was fully comparable to bats using ultrasound to probe their surroundings.
Sound Transmission Soul Searching had one major flaw: if the target did not respond to the caster's summons, it would be completely ineffective. In the original story, Tianshan Tonglao had exposed her location only because she heard Li Qiushui describing those explicit scenes of her and Wuyazi being inseparable, and could not help cursing her out.
When Song Qingshu used the technique, his greatest fear was that Shen Biqun could no longer speak. Fortunately, he received a response before long. Apparently, she had merely been imprisoned and had not fallen unconscious or