What unsettled him even more was that as the distance decreased, the burning sensation in his right eye pulsed at a specific frequency, as if resonating with some sound wave in the distance.
"What is that?" Qin Yue pointed toward a hemispherical temporary structure in the distance. Its surface was covered in reflective material, appearing like a giant metallic mushroom under the setting sun.
Qi Wenyuan slammed the steering wheel to avoid a deep pit. "That’s the 'non-destructive detection facility' Lu Shan applied for. On the surface, he claims it’s for scanning the internal structure of the murals using sound waves." His voice tightened. "In reality, it’s an acoustic amplifier. He’s using the natural resonance of the grotto complex to magnify the sound wave effects of the Music Figurine!"
Chapter 129