The Invincible Player of Survival in the Wilderness

But under Lin Feng's beating, the rock wall made a muffled sound.

"This is...ancient cement?" Gasol asked in surprise.

No wonder Gasol was surprised. To know that the earliest cement appeared on the earth, it has to be traced back [-] years ago, when the most primitive cement was calcined with red volcanic ash.

But how did prehistoric humans discover the properties of cement?This is definitely a mystery.

Seeing Lin Feng knocking on the wall with a serious face, Gasol became somewhat disapproving after the initial surprise.

Isn't it just ancient cement, so it is necessary to be so cautious and make such a fuss?

Facing the abyss in front of him and the humanoid creature that suddenly disappeared just now, Lin Feng didn't pay attention to anything else, but seriously and single-mindedly knocked on the wall.

The walls are very thick, and with Lin Feng's beating, there are "dong dong dong" and "knock knock" sounds from time to time.

Gasol quickly understood the meaning behind the sound—the wall is hollow!

Following these different sounds, Lin Feng pressed his hands against the stone wall and began to grope inch by inch.

………… ..

-------------Chapter Dividing Line---------------

Sure enough, most of the stone walls are hollow.

And every other distance, the octagonal prism embedded in the wall will appear on the wall, and these small things are arranged very regularly, as if they are parallel to several straight lines, arranged in six lines from top to bottom Wire.

It was impossible to determine what material these gadgets were made of for a while, although under the illumination of the light, they shone brightly, a bit like quartz stone.

However, the uneven carvings well convey the regular arrangement of these little things and their brilliance. If Lin Feng didn't touch them by chance, he wouldn't even notice them.

Groping all the way, Lin Feng went farther and farther.

Gasol didn't dare to leave the door of the crypt, thinking of the "light coma" phenomenon that occurred in the creatures in the crypt just now, he quickly turned on the power of the headlights to the maximum.

After turning it on, he still felt that it was not bright enough, so he turned on the other two spare flashlights, then hid in the darkness, quietly listening to the movement in the abyss.

After an unknown amount of time, Lin Feng came back quietly.

Through the heat tracker, Gasol found strangely that Lin Feng's influence was very, very dim, as if he had just returned from a world of ice and snow, and his questions were very low.

He thought about it, maybe it was Lin Feng himself who used some special ability to control the shrinkage of the pores and minimize the leakage of heat in the body.

Gasol knew how strong Lin Feng's body was, so he was not surprised or surprised when he showed this ability.

"Sure enough, this ring corridor has protective facilities, and it completely surrounds the ring corridor."

Lin Feng spread his hands, and a few shiny pebbles appeared in his palm, he continued, "I have already discovered where the inexplicable light net comes from, it is from these pebbles. "

Gasol took the small stones and observed them, and Lin Feng continued to explain, "I just picked out a few small stones from the wall, and ran back to the passage of the axis of time to observe what was sent out at the beginning. The location of the optical network.

Those light nets that make the metal disappear inexplicably are all emitted from this kind of small stones, and this kind of small stones are embedded in the wall, which is very difficult to detect.

After I picked out these small stones, I found that they were connected to some kind of optical fiber, which is similar to the transmission optical fiber in a laser gun.

Now, we finally figured things out. "

After hearing Lin Feng's words, Gasol closed his hands, pinched a few small stones in his hands, looked at Lin Feng, and waited for Lin Feng's next words.

"When we opened the channel of the Axis of Time, the entire underground protective network was activated, and all the creatures living underground disappeared strangely.

So when we entered the underground flying laboratory, all we saw were clean scenes. "

Lin Feng explained it this way.

At the beginning, the bereaved family put in a lot of effort, and only entered the upper workshop, or the assembly workshop, which was not the core area anyway.

Through the information left at the scene, the bereaved family determined that there was a secret laboratory deeper underground.

It's a pity that the bereaved family spent many years of work and sacrificed many people, but they couldn't open the passage to a deeper level.

After the explosion of the Asian branch, many research materials of the Survivors were lost. Fortunately, this is not the first time that the Survivors have encountered such a thing in their thousands of years of operation.

They have used the most advanced equipment in several important relics around the world to make data backups.

After these data are backed up and encrypted, they are disguised as inconspicuous prehistoric cultural relics. People from the bereaved family expect that even if they suffer a catastrophe one day, they will be able to interpret their research results after the current human science and technology level reaches a certain level. .

The reason why this crypt can become a data storage point for the bereaved family is because opening the crypt requires an unimaginable amount of energy, which is enough to require the energy supply of an entire nuclear power plant.

The survivors thought that no one would build a nuclear power plant to open this crypt, and human beings may not yet be able to find a way to open it.

Even if we take a step back and say that human beings really have the ability to open the door with portable energy containing huge energy, then by that time, the scientific and technological achievements in this crypt will not be enough to affect the balance of the world at that time.

Therefore, the research results of the bereaved family hundreds of years ago are stored here. Once these results are released to the market, they will definitely cause a huge storm.

In other words, these scientific research results are most suitable only if they are placed in such a dangerous place that ordinary people cannot enter at all.

A hundred years ago, when the survivors were active here, there was no record of encountering crypt creatures, so this species must have entered here not long ago.

The species that Lin Feng and others encountered in the upper layer were probably their sentries, or the explorers they sent out to conduct investigations.

From this point of view, perhaps this kind of mysterious house really came here not long ago.

The biggest possibility is that Lin Feng suddenly activated the basement, which fully triggered the protective devices here, making these explorers who arrived in the basement disappear collectively.

And the three burrowers just now may be the first search and rescue personnel sent by their ethnic group to search for their explorers and investigate the reason for their disappearance?

"We now have to race against time."