Everyone hastily ate lunch, dressed up, and came to the pit. They were ready to open the black door according to Master Zhou's request.

Zhou De first entered the room alone to carefully observe the button mechanism on the black door, and after he withdrew, he decided to use the first method to open the door first.

The Engineer entered the room first, and carefully installed a simple mechanical transmission system, which could trigger the buttons on the wall by remote control when no one was there. If this doesn't work, move the four Night Pearls in the room and use a mechanical device to support the open black door. In the process of using both methods, the person always hides outside and monitors the movement through the camera, so as to ensure the safety of the person.

Although Xu Ming and the others were a little dissatisfied with Master Zhou's time-consuming and laborious method of mobilizing the people, Zhou Zhongzhong was now the leader of the expedition, and everyone could not help but obey his arrangement.

It took more than two hours for the engineers to install the equipment, and everyone returned to the ground, far away from the big pit, looking at the monitoring screen. Everyone held their breath, ready to trigger the button to see what was so scary about Black Gate. Nanyang confirmed that all the personnel had been evacuated and no one remained in the ancient ruins, and asked lightly: "Master Zhou, can you act?" ”

Zhou De was very excited and said, "It's okay, press that mechanism!" ”

Nanyang commanded: "Begin!" "The black door was about to be opened, and all the experts and soldiers were nervous, and a pilot activated the high-precision numerical control equipment and operated the hydraulics installed in the house, using very little force to touch the button.

The crowd held their breath and looked at the buttons on the wall through the screen. The pilot manipulates the hydraulics and gradually increases the force.

Several cameras were installed in the house to monitor the situation in the room from all angles, and everyone was sweating, not knowing if the black door would open.

At first, the button on the wall did not move, the hydraulic device gradually strengthened, the button suddenly retracted slightly, everyone was shocked, Nanyang looked at the monitoring screen, the force used by the hydraulic device was not large, I didn't expect the button to move. Nanyang Jian raised his eyebrows and said, "Stop the afterburner." At this time, the hydraulics also reacted, automatically stopped increasing the force, began to move forward with slow and fixed force, pressed the button on the wall all the way to the bottom, and then the hydraulics instantly retracted.

Everyone stared at the screen, and the black door in the room had quietly risen.

Everyone was a little surprised to see the black door open so simply. The black door rose, and it was pitch black behind it, and I don't know where it was. Xiao Gang and the others stared at the screen, and when they saw that after the black door opened, there was no movement, and nothing came out.

Nanyang looked at the test results of the instrument, the air did not change, and there was no radiation or other information from behind the door. Everyone waited quietly, this black door seemed to be normal, and nothing had changed in the room.

Zhou De was stunned when he saw that there was no abnormal phenomenon after the black door was raised, and his face was confused. Everyone was also a little disappointed, thinking that something would happen when the black door was opened, as Master Zhou said, but in fact, the black door was opened so easily.

After about 1 minute, the black door slowly fell, the buttons on the wall returned to normal, and the room was calm as if nothing had happened.

Everyone waited for a while, and Nanyang ordered the pilot to open the black door again, which was still easy and safe. This black door has a hidden self-locking mechanism, which will automatically close after about 1 minute each time it rises.

Xu Ming laughed: "Hehe, this is just an ordinary door, and it's worth making a fuss about?!" It's so easy to open, and it's a waste of time and manpower to get it, what's the danger here, is there any monster running out from behind the door? We are scientists, and we are afraid of some ghosts, snakes, and gods, which is ridiculous! ”

Zhou De's face was very strange, as if something couldn't be figured out.

Xiao Gang said: "Well, no danger is the best, and Master Zhou also puts safety first." He continued: "Now that it has been determined that there is no danger, we can continue our investigation." ”

Xu Ming said: "I just said that this is just a palace built by the ancients, how can there be those messy things, our expedition team can explore this place clearly in one day." ”

Zhou De lowered his head and said, "I can't figure out the matter of the Black Gate for the time being, but those four night pearls must not be touched!" ”

Xu Ming sneered and said, "Yo, what? Master Zhou, there are no ghosts behind this black door, do you want to say that those four orbs will also turn into ghosts? Are there any ancient legends about these four orbs? It's been so long since this ancient site was discovered, who has ever seen a ghost? Isn't this normal? ”

Gao Qin thought for a moment and said, "Senior brother, I think we should not act rashly until we figure out this place. Now I think this palace is a little weird. ”

Xu Ming asked curiously, "Oh? Senior sister, what's weird? ”

Gao Qin stared at Xu Yang with a pair of wonderful eyes, and said: "There are so many treasures hidden here, why is there no protective measures, but it is so easy to enter, as if waiting for others to enter, don't you say this is strange?" ”

Xu Ming was stunned for a moment and said, "Oh...... ......," he defended, "...... Maybe it was guarded before, maybe something happened......"

The sky seemed to be darkened, Nanyang looked up, the originally bright sunny sky suddenly overcast, became cloudy, the sky came out of nowhere, the sun disappeared quickly, and a strong wind blew in the mountains, blowing the leaves rustling.

Zhou De saw the change in the weather, and suddenly had a sense of déjà vu.

The people gathered their equipment and went into the house again. Nanyang has arranged for people to move away the cultural relics in the corner, and only the crystal cabinets in the four corners have not been moved. Because of Master Zhou's warning, Xiao Gang decided that these four mysterious night pearls could not be moved for the time being.

Xiao Gang and Nanyang have prepared enough manpower and material resources to store and protect the precious cultural relics that have been transported, and the action of the expedition team is to continue to march into the interior of the ancient ruins.

After the house was cleaned up, the soldiers all retreated, leaving only Gao Qin and his party standing in front of the black door. This black door seems to be made of some kind of metal, and the surface is black and smooth, with fine frosted grains, which are not reflective, and look very heavy. Gao Qin looked at the switch on the wall, and with just a light touch, the black door quietly rose, and this mechanism must be very exquisite.

Everyone got ready, Nanyang nodded to Ah Hu and the pillar, Ah Hu took a mechanical lookout glass, Nanyang and the pillar both raised their guns, Zhou De gently pressed the button, and the black door immediately rose silently, and it was dark behind the door. As soon as the black door rose, Ah Hu had already stretched out the visitation realm in his hand into the back of the door, and there was a large piece of reflective lens with a good angle on the visitation mirror, and a searchlight was installed underneath, as soon as the light was turned on, the environment in front of him was immediately illuminated, and the experts also saw the situation on one side directly from the reflection of the mirror.

It turned out that behind the black door was a pitch-black circular corridor, and the left and right directions did not know where to lead, and the searchlight did not shine too far, and the corridor had already turned a corner, and it was pitch black at the end.

Ah Hu turned the lookout mirror and looked at the sides carefully, Nanyang looked at the time and said, "It's okay." Ah Hu retracted the lookout glass, and after a while, the black door fell.

Everyone confirmed through the lookout mirror that there was no ambush in the corridor behind the black door, and Nanyang asked Zhou De, "Can we enter?" ”

Xu Ming smiled and said, "What's there, it's just a corridor, of course you can go in." ”

Nanyang looked at the black door and said, "This door always closes automatically, there will be potential safety hazards, do you need to stop it first?" He turned around and asked Gao Qin, "When it rises, can you use a tool to resist it?" ”

Zhou De said angrily: "No! Doing so will destroy the monument, and it may damage the mechanisms here, to the point of destroying or triggering more mechanisms in the ancient ruins. ”

Gao Qin looked at the thick walls and the heavy black door, there must be an ingenious design of the mechanism, if it is carelessly stopped, it is likely to destroy these mechanisms, she said: "We can go first and take a look, if there is a real need, then stop the mechanism of this door." And there's a button here, so you can arrange someone to control the door. In the unlikely event that the door fails to close, it will not be difficult to open it with the existing equipment. ”

Nanyang said: "Okay. He informed the ground and sent another person to take control of the Black Gate. Everyone held their breath, everyone turned on the lighting, Zhou De opened the black door again, and everyone immediately walked in.