It is midnight.
The silvery-white bud hanging alone at the top of the malt seemed to echo some ancient rhythm, silently cracking open a tiny, almost imperceptible fissure.
There was no dazzling brilliance as expected, nor a surge of energy.
However, a sound wave, even finer than a spider's silk, quietly spread from the crack, like a speck of dust thrown into still water, creating invisible ripples.
Lin Yi's heart tightened suddenly in that instant.
It was the starting note of a nursery rhyme, faint yet piercing his eardrums with perfect precision, exactly the same melody his mother had once softly hummed deep in his memory!
"Click".
Without hesitation, he quickly cut off all the power to the workbench.
Computer screens, oscilloscopes, signal analyzers... all modern electronic devices fell silent instantly.
He wanted to eliminate any possible electromagnetic interference and rely solely on his own ears, honed through countless trials, to capture this celestial music from another dimension.
In the silence, the sound wave became clearer.
It is not simply sound, but a strange resonance.
Lin Yi's gaze suddenly shifted to the "Wall Language" plant in the corner, which he used as a reference point. He saw that the silvery-white veins on its leaves were trembling in sync with the frequency of the sound waves, in a very subtle way that was barely perceptible to the naked eye.
The frequencies match perfectly!
He found the key.
Lin Yi took a deep breath and carefully took out a piece of rusty wheat that had been prepared in advance from a lead box.
This thing was dug out by him from the old wall of the abandoned sanatorium, the birthplace of the "Wall Language" plant. It is the mutated parent plant of the plant.
He held his breath and gently placed the rusty ear of wheat directly beneath the silvery-white flower bud.
A miracle happened.
Inside the rusty bell wheat ears, the long-dried grains seemed like ancient musical instruments being awakened, vibrating slightly at the same frequency as the sound waves emanating from the flower buds, as if a faithful receiver was transcribing the information that transcended dimensions in a completely synchronized manner.
Just then, a deep, muffled whisper, like the friction of tectonic plates, came from deep underground, forming an eerie yet harmonious harmony with the sound waves from the flower bud.
It is Ivan, the colossal beast imprisoned deep within the earth's veins, who is interpreting things in his own way.
"...sound...is...for...guiding...the...soul...needs...form..."
The fragmented words exploded in Lin Yi's mind like thunder.
He instantly understood!
Memory, or "soul," cannot cross dimensional barriers in a complete physical form; that would require unimaginable amounts of energy.
However, sound—the most primitive and purest carrier of memory—can serve as a vanguard, establishing a fragile but effective two-way channel between the two dimensions!
A crazy and audacious plan quickly took shape in his mind.
He wanted to build a "sound catcher".
Lin Yi worked frantically throughout the entire second half of the night.
He unearthed pottery shards he had brought back from the ruins of the "Night Listeners," sacred objects used by ancient civilizations to listen to the earth's lamentations.
He carefully polished the pottery shards into a hollow cocoon shape, and then embedded the few remaining black crystal fragments into the inner wall of the pottery cocoon according to the matrix of sound wave resonance.
He wants to use the natural affinity of the Night Listener ceramic shards for memory-based sound waves, as well as the amplifying and resonating properties of black crystal, to create a "sound cocoon recorder" that can capture and store cross-dimensional sound waves.
Before dawn, the first crude but fully functional acoustic cocoon device was born.
Lin Yi solemnly placed it next to the silvery-white malt. As he pressed the start switch, countless fine cracks appeared on the surface of the ceramic cocoon without warning. The cracks did not cause it to shatter, but instead intertwined into an extremely complex pattern, like a solidified sound wave spectrum.
The instrument is working!
Three hours later, the map stopped spreading.
Lin Yi connected the recorder to a playback device that was completely physically isolated from the external network.
The first complete recording has been generated.
It was a calm, gentle male voice, calmly reading a letter.
Lin Yi's pupils contracted. It was the contents of the nurse's burned suicide note that he had found in front of the crack in the hospital's outer wall!
The owner of the voice was undoubtedly the nurse's lover who died in an experimental accident.
At the end of the recording, the male voice paused, and in a tone filled with endless tenderness and relief, added a sentence that had never been mentioned in the suicide note.
"Don't feel sorry for me, the medicine smells nice."
Lin Yi remained silent for a long time.
He didn't make the recording public; that wouldn't be respectful to the deceased.
He found a new pottery shard, used a special technique to re-engrave the recording onto it, and then went alone to the hospital ruins, burying the shard deep beneath a crack in the wall.
The next day, as the nurse passed by the ruins in her usual dejected state, she suddenly stopped in her tracks.
She looked around blankly, a hint of confusion and hope in her eyes, and finally whispered to herself, "Strange... I think I heard him speak."
Lin Yi, who was hiding in the distance, keenly observed that the moment the nurse uttered those words, the silvery-white veins on the back of the leaves of a clump of "Wall Language" vines at her feet suddenly lit up, the light as warm and jade-like as it lasted for a full three seconds before slowly fading away.
Lin Yi's heart skipped a beat.
He understood.
Sound waves can not only be recorded by instruments, but also received by buried "memory media", and under certain conditions, they can directly trigger the memory resonance of specific people at the scene!
This is not an illusion, but a real transmission of information.
The "Sound-Driven Plan" must be launched immediately!
He worked through the night to make six new sound cocoon devices and placed them at seven high-density memory nodes he had identified—the hospital ruins of the nurse, the school clock tower of a student whose father had died, the intersection where a tragic car accident had occurred… Each place had a bottomless crack and a bunch of wildly growing “wall-speaking” plants.
He set all the instruments to "receive only, do not respond" mode.
He didn't want to alert the other side yet; he needed to gather enough data.
On the third night, the acoustic cocoon device installed in the basement of the school's clock tower suddenly started on its own.
This time, it recorded not tender words, but a battlefield command interspersed with huge explosions and roars.
Lin Yi checked the information and confirmed that this was the last radio call made by the student's father before he sacrificed his life on the battlefield.
The next day, Lin Yi played the recording in a very low voice in front of the crack in the playground.
The student, who had always disguised himself as rebellious and indifferent, felt as if his bones had been removed the moment he heard the voice, and immediately knelt down on the ground.
His lips trembled violently, his eyes were wide open, and tears streamed down his face, but he couldn't utter a sound.
Lin Yi did not step forward to intervene.
A moment later, a drop of pitch-black water slowly seeped out from the deep crack.
Water droplets fell on the dry ground, but instead of spreading out, they writhed and eventually coalesced into two words.
"I heard you."
Lin Yi switched the sound cocoon device on the playground to silent mode, letting it continue to receive signals silently, and then turned and left.
Time flies, it's the seventh night, midnight.
The crack in the silvery-white flower bud had quietly widened to half an inch.
The intensity of the sound waves emanating from it increased by more than tenfold, no longer a trickle, but a silent storm that swept across the entire city!
At this moment, the "wall-speaking" plants throughout the city seemed to receive a unified command and trembled violently.
Countless leaves flipped over in unison, pointing their shimmering silver veins toward the sky, forming a massive biological antenna network covering the entire city, greedily receiving messages from beyond the heavens.
Lin Yi was guarding the ruins of the water pumping station—the place where his mother disappeared, and also the place where the "Wall Language" plant first appeared.
He stared intently at the sound cocoon device in front of him, hoping to capture his mother's voice.
However, at that moment, a completely new voice suddenly squeezed into the familiar nursery rhyme sound waves inside the flower bud.
It was a clear, slightly timid voice, unlike any I'd ever heard before. It pierced through all the noise and rang directly in Lin Yi's mind.
"Uncle, can we borrow your lamp to walk a bit?"
Lin Yi froze, a chill running from his tailbone straight to the top of his head.
This is not my mother's voice!
Almost simultaneously, deep underground, Ivan's muffled whisper, as if the earth's crust were cracking, exploded with unprecedented clarity and urgency.
“Unit 95…Sound path through…The traveler is about to arrive.”
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