Gu Ya communicated with Hei Yang through a voice in his mind, "Use your best trick, play the ghost!"
Hei Yang tilted his head, indicating he didn't understand.
"Master, regarding what humans call a 'ghost,' it seems to me to be some kind of trans-dimensional being, whose actions in its own plane can affect reality."
"You don't need to understand," Gu Ya rebuked coldly. "There are no ghosts in this world. You just need to make humans think there are."
Hei Yang was silent for a while before slowly replying, "Alright, Master, I'll try to understand your meaning. What happens next?"
Gu Ya informed Hei Yang of his action plan.
Once Hei Yang understood, he transformed into code and entered the already located communication data stream.
This prison had visible communication data used for the daily operations of the Supervision Department.
Furthermore, there were the communication bracelets of the Supervision Department members that he could infiltrate.
For Hei Yang, entering these data streams was as easy as pie.
Gu Ya, remaining in the cell, was not idle either.
He paced slowly, contemplating his next move.
"If Fu Ya Fang isn't here, where should I look for her?"
"Worse still, if Fu Ya Fang has already been turned, how should I deal with Black Star's counterattack?"
"Even more fatal is 'Hai Yang.' So far, I only have a general understanding of its structure, but no clue about its principles. Without understanding the principles, I can't completely destroy it."
Gu Ya became increasingly unwilling to accept this, raising his fist and slamming it heavily against the wall.
"Calm down!" Gu Ya shouted in his mind. "I must remain calm. Every difficulty has a solution!"
Immediately after, Gu Ya punched the wall again, venting all his negative emotions.
But then, a strange sensation was transmitted from the surface of his fist to his brain!
Gu Ya looked at the wall in confusion and reached out to touch it.
"This wall... it's not made of the same material as the one I hit before... Could it be..."
Gu Ya found the wall he had first punched and tapped it lightly.
"Wrong!"
A string of alertness suddenly tightened in his mind, and Gu Ya became even more certain of his guess.
"When I first punched the wall, it clearly had a metallic texture."
"But this time, it feels like sea rock!"
Gu Ya immediately raised his fist and hammered the wall again, "It's indeed sea rock! Then what was that metallic sensation from the first hit?"
As his gaze swept across the entire cell, [Xie Shen Ning Wang] scanned the cell and located two hidden monitoring devices within the wall.
These two monitoring devices were located in opposite corners of the room, providing a perfect view of every corner of the cell.
Gu Ya casually conjured two micron-sized robots and released them onto the ceiling.
The micro-robots crawled towards the room's corners and infiltrated the two monitoring instruments embedded in the wall.
Through the communication transmission from the two micro-robots, Gu Ya successfully accessed and altered the data streams of the two monitoring devices.
Next, it was a one-on-one confrontation with the invisible surveillance.
Gu Ya materialized a metal detector in one hand,
and placed his other hand into the pocket of his prison uniform, conjuring an exoskeleton glove to prepare for the upcoming battle.
He sat quietly on the bed, waiting.
The detector scanned at a frequency of once per second, covering the entire cell each time.
Apart from the bed and the alloy gate, everything else was made of sea rock.
Time ticked by, second by second.
Gu Ya maintained a posture of readiness, his nerves taut, calmly listening to the detector.
After half an hour of this stalemate,
the detector suddenly emitted a faint "hissing" sound. Gu Ya lowered his gaze to the instrument's display screen.
On the screen, something metallic had stealthily infiltrated the wall directly facing Gu Ya.
Or rather, this substance could alter the surrounding medium and travel through it!
The detector's scanning frequency increased, and its volume grew louder!
Following the detector's orientation, Gu Ya calmly scanned the wall.
At the moment the volume reached its peak, Gu Ya immediately looked to his right.
His sharp gaze fixed on the smooth, pure white wall, as if trying to see through it.
The detector's volume instantly dropped a few decibels!
Gu Ya decisively struck, punching the right wall. This texture was metal!
That was it!
He materialized exoskeleton armor on his other hand as well.
With both hands, the high-energy thermal radiation concentrated laser from the palms of the exoskeleton directly melted the wall.
Gu Ya thrust both hands forward and then pulled outwards!
With a few cracking sounds of the wall breaking, accompanied by countless fragments of debris,
embedded within the sea rock wall, a strangely shaped metallic behemoth was completely yanked out by Gu Ya!
The thing toppled onto the floor, clearly not understanding what had happened. After a half-second pause, it suddenly began to sink into the floor!
How could Gu Ya let it escape?
A slab-like concrete structure rose from beneath the floor monster, firmly supporting it.
Four micro anti-gravity thrusters were fixed around the concrete slab, levitating it into the air.
This monster was rapidly modifying its medium. In just a few seconds, half of its body had merged with the concrete slab.
If it hadn't been lifted into the air, it would have certainly escaped into the floor within these few seconds.
Gu Ya gazed at the monster, placing his hand on its back.
The source of the invisible surveillance had been found.
But a greater mystery emerged: what was this thing?
If it were a mechanical electronic device, Gu Ya could see through it immediately.
If it were code, it would also not escape Gu Ya's tampering.
However, both [Xie Shen Ning Wang] and [Code Tampering] were ineffective against it!
Aside from being able to contain it, there was nothing he could do for now.
Stroking his chin, Gu Ya calmly pondered for a few seconds and then asked with his mind-voice, "Hei Yang, how is the mission going?"
Hei Yang replied dejectedly, "Master, I am still trying to understand the meaning of 'ghost'! Human thoughts are sometimes too fantastical, making it difficult for me to comprehend!"
"Useless, come back!" Gu Ya rebuked coldly.
Hei Yang retreated into Gu Ya's mind and instantly saw the strange creature suspended in the air.
"Master, what is this! Half cement and half metal?" Hei Yang asked doubtfully.
Gu Ya did not respond to Hei Yang's question.
He said coldly, "Destroy all obvious surveillance and break out."
"Heh, received, Master! I've wanted to do this for a long time."
Hei Yang happily agreed, flew out of Gu Ya's mind, and re-entered the communication data stream in the air.
Soon, the cell's alloy gate automatically opened, and Gu Ya walked out steadily.
"Who told you to come out! Kneel! Hands behind your head!" Guards on both sides immediately shouted angrily!
Gu Ya vanished instantly. When he reappeared, the two guards on his left and right had also disappeared without a trace.
Dealing with these guards, whose combat power was infinitely close to zero, required no great effort.
He instantly closed the distance, deployed his unique isolation space, and pushed them in to fend for themselves, leaving no trace.
Knowing the principle of invisible surveillance, finding them was no trouble at all.
Several metal detectors were attached to ultra-miniature mechs, which dispersed throughout the Supervision Department, searching for invisible surveillance executing missions there.
Once precisely located, Gu Ya and Hei Yang would arrive immediately and capture them.
The entire Supervision Department was like a haunted house, with employees disappearing one after another for no reason.
Fifteen minutes later, the head of the Supervision Department finally received the unusual report from his subordinate.
But soon, this employee who had sent the message to the head of the Supervision Department also vanished.
When the head of the Supervision Department stepped out of his office and looked at the long, quiet corridor, he shouted loudly, but no one responded.
In the next second, he felt a strong push from behind!
Immediately after, a black flat surface instantly expanded in front of him.
Alas, this minister, without even understanding the reason, completely disappeared from this world.
Gu Ya appeared in the position where the head of the Supervision Department had been standing, indifferently glanced at the empty, deserted corridor, and turned to enter the office.
Behind him, five invisible surveillance monsters hovered, following Gu Ya as they slowly entered the office.