"Infrasound attack? Sound waves can attack people?" Zhang Xiaojuan's mouth was dry, and she leaned her head on Xiao Yu's shoulder. "Yu, you're thirsty, have some warm water."
Xiao Yu pointed her finger at Zhang Xiaojuan's mouth and said, "Child, is that enough? Add some more if you need more."
"But we didn't hear anything just now?" Han Rui asked curiously, raising her face.
Xu Yi divided the remaining medicine equally among everyone, explaining, "Infrasound has a frequency below 20 Hz, and sound waves in this frequency range are difficult for humans to hear."
"Although you can't hear it, strong infrasound waves can cause hearing damage in humans and animals, and even permanent deafness."
Cheng Mofan, who had narrowly escaped death, was still shaken and hugged Zhuangzhuang's big head for comfort. "But just now, it wasn't just my ears; all my internal organs felt like they were being torn apart."
"The frequency of infrasound can resonate with human organs, and when the sound waves reach a certain intensity, they can completely damage the internal organs of the human body."
"The malfunctions of the radio and chandelier were caused by the resonance between the sound waves and these devices."
Xu Yi smiled faintly and began his mini-lesson for the curious children.
The curious students listened with great interest, their eyes sparkling with the clear innocence of college students.
"I see, no wonder my back hurts." Zhang Xiaojuan drank a lot of water and finally felt much better.
He hesitated for a while, then finally couldn't help but whisper, "What does 'The Sheep Village March' mean? Is it some kind of special magic spell? I felt much better after listening to it."
"If this song is so magical, I will sing it three times every morning from now on."
"I put Pleasant Goat on my bedside table even when I sleep."
Xu Yi remained calm. "High-intensity music can mask infrasound to some extent, thus reducing its uncomfortable effects on people."
"I found the player; it only contains this song."
"Including the medicine I just gave you, it's all vasodilator and nerve calming drugs."
Everyone: "..."
It's a misunderstanding; they thought there was some kind of magical magic in the sheep village.
In contrast to the relaxed demeanor of everyone else, Yang Zhenhua, just a few walls away in the laboratory, had a livid face and slammed a water glass on the table to the ground.
His secret weapon, the infrasound jammer, which he had painstakingly developed for several years, was so easily cracked by this group of people?
After his rebirth, he possessed top-notch research and development resources. So why was he repeatedly defeated by these few obscure little tasks?
“I was originally going to spare your life, but now I’ve changed my mind.”
Yang Zhenhua stared at the monitor screen, his mouth muscles twitching uncontrollably.
...
After a short rest, Lu Sheng and the others finally found the hidden underground passage under Zhuangzhuang's guidance.
Faced with a dense horde of zombie guards, Lu Sheng swept through the unfortunate zombies in his path with the ease of a college student taking over a kindergarten, leaving no stone unturned.
The originally crowded underground passage was quickly cleared by Lu Sheng into a wide road.
The zombie remains piled up like small mountains on the ground were all collected by Sun Tiantian and her thoughtful little helpers, who collected all the crystal cores.
"If we had known there was such a great place, why would we have bothered killing zombies outside?" Zhang Xiaojuan happily controlled the little mud doll to dig for crystal cores. "There are so many monsters here, and they're so densely packed. The crystal cores are also very pure. It's a real treasure trove."
Just as Lu Sheng and his group were rushing deeper into the passage, the lights in the corridor suddenly flickered a few times.
Then everything went black.
The quiet underground passage was plunged into endless darkness.
Just as the group pulled out their flashlights, a series of earth-shaking footsteps and piercing roars suddenly erupted.
"Hehe!"
The pungent smell of formaldehyde hit him, and a strong gust of air suddenly swept towards Lu Sheng's right rear.
Lu Sheng nimbly dodged to the side, and when she turned around, she was met with a pair of eyes as bright as light bulbs.
"Lu Sheng, it's level nine! It's already reached the level of a Corpse King!" Zhuangzhuang's voice cracked with anxiety.
This zombie had been soaking in formalin for some time, its facial skin becoming soft, mushy, and pale, making its features unrecognizable. Its entire body was encased in reinforced metal, and both its arms, like Xiao Ning's, had been replaced with mechanical arms.
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