Due to the unknown signal interference at the black dot's location, the information team's cracking point was set up in a small tent over two hundred meters away.

Although the place looks a bit basic, the process of code-breaking doesn't really depend on the environment but on solid skills.

Yu Xiuhong's information team is from the Modu Information Center. The capability of its members... well, just look at their hairlines, comparable to Lin Li's.

What, you say there's an odd one out with thick hair?—Remember Ye Xu from Liu Xiangqian's team?

Ahem...

After entering the tent, Yu Xiuhong led Lin Li and another to an operation table and pointed at the screen, saying:

"Captain Lin, Academician Pan, this is the footage we've decoded and separated."

After saying this, he glanced at Lin Li, and upon getting a signal, he pressed the play button. Lin Li and Pan Jianwei then moved closer to watch intently.

The footage recorded is not very long, with the total progress bar being less than two minutes.

The beginning of the video shows an open area, not directly facing where the black dot appeared.

Based on a low slope a few dozen meters away in the footage, it can be roughly judged that this aspect should be about ten degrees south of the black dot mark.

At this point in the video, the conversation between Shi Yalong and Fei Qiu can be heard clearly, filled with technical jargon that baffles most listeners yet sounds incomprehensible even when hearing it clearly.

But quickly, as Fei Qiu's exclamation sounded, the footage rapidly turned to the position of the small black dot.

As the main person in charge of the coal mine, Fei Qiu is equipped with a high-quality recorder, as survey footage often requires high magnification playback after completion.

This recorder's footage is in 4K quality, so after transcoding, the details of the small black dot can be seen very clearly.

The small black dot is approximately two meters above the ground and about twelve or thirteen meters from Fei Qiu's line of sight.

The small black dot was indeed as Fei Qiu described, inactive for the first second or two.

But then it suddenly began to expand slowly, widening up to the size of a basin, when Fei Qiu's shout was clearly heard in the recorder:

"... Run quickly!"

Then came the image shake brought by running, but after about one or two seconds, the footage suddenly stopped.

Next was Fei Qiu's actions of turning back, throwing a timed explosive, and fitting a recorder.

Along with this, Fei Qiu's lowered voice was heard as he threw the explosive:

"Damn you, Emperor of Luck, damn you accursed Europeans!"

Lin Li and Pan Jianwei: "..."

About twenty seconds after Fei Qiu left, the black dot gradually solidified into a large black hole about two meters in diameter, deep and bottomless.

After a moment.

A long, black, soft thing slid out from the hole, accompanied by a trace of transparent mucus.

Yes, it was the Black Wind Serpent, a total of five in number.

However, after the last Black Wind Serpent crawled out of the hole, there was no further activity inside for a while.

A few seconds later, the black hole suddenly vanished with a whoosh, disappearing as quickly as a fickle-hearted scoundrel's changing face.

This scene not only astounded Lin Li and others but even the leading four-meter-long Black Wind Serpent in the footage showed significant hesitation in its actions.

It was seen twisting its neck backward, its stiff appearance seeming almost incredulous.

Then came a boom, heralding the arrival of justice.

That was the explosive used for blasting mines, and considering the previously detected geological structure, an extra portion was specifically added by the rabbits.

The power was much stronger than the set of point explosives Yao Rong and the others threw before, at least four to five times higher.

Plus, these five Black Wind Serpents didn't even reach the first tier level, their defense far from the strength of the second-tier giant snake they dealt with before.

So naturally, these five creatures were downed, all five were done for.

After watching the video, Lin Li and Pan Jianwei both had somewhat complex expressions.

It must be said, Fei Qiu is indeed a very capable and decisive officer; what he did solved a considerable number of problems for the rabbits—especially in analyzing the black hole aspect.

Then Lin Li looked at Pan Jianwei and asked:

"Academician Pan, do you have any thoughts?"

Pan Jianwei nodded, actually having had some related suspicions earlier but refraining from mentioning them out of caution.

Now with video evidence, plus many information nodes captured in it, he could boldly share his opinions:

"Academician Lin, did you notice? The black hole… I'll just call it a portal, the disappearance of the portal happens before the explosion by the explosives."

Lin Li nodded:

"Noticed it."

Pan Jianwei pulled a chair over, signaling him to sit down while he explained:

"Before, I considered that the interference from the explosives was the primary reason for the portal's disappearance. Although the kinetic energy from explosives might seem unrelated to space, in the standard transmission four-dimensional axis, kinetic energy or momentum is actually a crucial component of the Y-axis.

For instance, in the widely propagated cosmology, the Big Bang of the universe is the concept of space generated by momentum expansion—except this explosion is to an extreme magnitude.

Mining explosives, although its impact on stable space portals like those from Ziqiong City is relatively unlikely, such abruptly appearing space portals, if located exactly at the core of the explosion region, could indeed result in some unknown outcomes.

It's just unexpected that... the portal's disappearance wasn't due to the explosive blast but rather it disappeared proactively, which is very thought-provoking."

He paused for a moment and then continued:

"The behavior of the Black Wind Serpent involves subjective psychological speculation—essentially a projection from an observer's perspective, so let's not discuss that for now.

Let's talk about one issue alone: speed."

"Speed?"

Lin Li glanced at him with some confusion and then quickly caught on:

"Academician Pan, are you referring to the speed of the portal's appearance and disappearance?"

Pan Jianwei nodded, immediately using a phrase he often used with students:

"Bingo, the portal took a total of seventeen seconds to appear and expand, indicating its expansion comes with time and costs.

But its disappearance? It was barely half a second, on a sixty frame rate scale probably just ten frames or so.

Therefore, the appearance and disappearance of this portal do not abide by the conservation laws, indicating its disappearance surely involves some external force!"

Just as Pan Jianwei said.

General relativity describes gravity as a curvature of space-time, indicating that space also possesses tension, and its stretch and contraction should inherently be the same due to the presence of extremum problems.

The portal, as its name suggests, is a 'pipeline' linking the space between two worlds.

In other words, when it connects two worlds, the Damo Realm and Demon Realm, it forms a direct sum concept in terms of regional properties.

If the space of two physical quantities can form a direct sum space, it often indicates that these two physical quantities are essentially identical.

For instance, the Dirac spinor is the direct sum of a left-handed Weyl spinor and a right-handed Weyl spinor, and the spin operator is the direct sum of left-handed and right-handed spin operators (the direct sum of matrices is placing two matrices on the diagonal in block matrix form), and they are both spins, the same physical quantity.

Thus, the trajectory of a portal's appearance and disappearance must inherently be identical; that is, the time taken for its appearance should equate to that of its disappearance.

In other words, if the portal vanishes much faster than its appearance, some unknown external force must be at play!

Then Pan Jianwei glanced at Lin Li again and continued:

"Moreover, Academician Lin, don't you find it strange that a space portal would appear here? You should know there's already a light gate nearby."

Lin Li quickly nodded, as this was undeniably a troubling issue for him as well.

As the main leader of the camp, he had been overwhelmed by the analysis reports on the light gate during this time.

The light gate phenomenon is currently represented in a way that coincides with string theory.

To meet the needs of listeners who aren't familiar, it can be directly explained that this area has already been claimed by the light gate's 'territory,' so other space portals are almost impossible to appear nearby.

Much like when you're receiving an IV, a needle hole inserted with a catheter is impossible to puncture again in that area.

This involves the 'structure' problem of space concepts, meaning opening a portal in this area is several times harder than in other areas.

Even Lin Li, a biology expert, understands this concept, let alone Pan Jianwei, a physics expert.

He raised a finger straightforwardly to Lin Li and said:

"So my hypothesis is, regardless of what external anomalies occurred during the portal's closing and opening phase, something must certainly have happened on the side of the Demon Realm—at a macro-world scale, that is.

Is it possible that...

The barriers between the Damo Realm and the Demon Realm are thinning, and the two sides are drawing closer to each other?"

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