When Yan Hua was studying how to open the door of Zhongxian, the staff behind him was sad and started the testing work.

They wondered, this place has always been fine, it has always been a low-oxygen environment, how could the oxygen level suddenly rise enough to cause the two door gods to oxidize and fade?

This doubt was revealed when strings of data popped up one after another.

Right now, the oxygen level here is very low, even lower than what has been detected in the outside world.

In other words, the oxygen that has just invaded is also swept away by the pigment when it is poured out after oxidizing the pigment.

This is probably a kind of hidden mechanism, which is specially designed to expel oxygen, so that the tomb is always in an anaerobic environment, so as to protect everything in the tomb is basically in a frozen state, and the embalming of corpses and the preservation of burial goods need to be maintained by the environment.

Part of the oxygen that swept in came from the direction of the grave keeper's chamber that they had opened.

After the withered vines retreated, the entrance and exit were open again, and fresh air naturally poured in.

However, fresh air may not permeate too much, as long as there is no major movement in the tunnel.

But just now they did make a lot of noise, and almost destroyed all the mechanisms in that section of the tomb.

What deserves attention in front of us is not the crisis just now, although it is still fresh in everyone's minds.

It's just that the other point it brings to the table is the key point that touches the hidden mechanism.

When countless spears are released from the dome, the air from the upper layer is also brought down.

The confluence of the two streams of air, through the chaos, was smoothly carried deeper into the depths, touching the passive protection mechanism here, which was the hidden mechanism they saw.

The ghost appeared, and when Nitrox was expelled, he almost expelled them together.

Everyone couldn't help but look at Professor Hao and the three of them, if it weren't for these three people standing indifferently in front, they would have run back long ago.

That scene just now was really scary.

Everyone was still apprehensive, and Yan Hua had already operated continuously on the protruding stone of the stone gate, breaking a few times and twisting the last button.

There were no more terrible traps around, but there was a sound of "Kerala" turning from the inside of the stone gate.

The stone gate divides to the left and right.

They finally succeeded in opening the door of Zhongxian.

Everyone wanted to cheer, but they had just been "educated" by Professor Hao.

At this time, if you shout and scream, I am afraid that you will be repaired by Professor Hao.

There is no one here who does not respect Professor Hao, of course, most of them are still a little afraid of him in addition to respect.

Professor Hao ignored the little caution of the crowd, and focused all his attention on the stone door that was slowly opening.

The inside of the stone gate is still a blue and green lantern.

It's just that there are more ever-bright lights in it.

Professor Hao narrowed his eyes and instructed Yan Hua: "Be careful, this place is unusual." ”

His unusual was a hint that there was more to this than just a tomb mechanism.

Yan Hua nodded with a solemn expression, and took the lead in walking in.

She can do the math, and she doesn't use divination.

After coming in for so long, she had only used two divination techniques, one was when she was dividing the gold and fixing the acupoints, and the other was when she had just chosen the road on the left.

There are only three hexagrams a day, and there are only two chances left today.

Yan Hua will not use it easily, as long as she opens her eyes to the sky, she can see all kinds of qi, and she can see the location of many auspicious and evil positions.

These landing points are all formed by combining the evil energy of the mechanism.

Yan Hua stopped when he entered the Zhongxian Gate.

The drop point here was very chaotic, she couldn't help but let the staff behind her look at the instrument in her hand, and she also took out her mobile phone herself.

Time stood still on the phone.

The staff also said that all the instruments were out of order.

Very good, and extremely strong magnetic interference.

It seems that this piece has not been detected either.

Under the ever-bright light of the shadow shadow of the inner envy door, many abnormal shadows are beating.

Yan Hua frowned slightly, and said softly: "Be careful, it's a living thing." ”

Professor Hao also looked carefully, and his face became extremely ugly for a moment: "Corpse cockroaches, they should all be in the wall." ”

Yan Hua nodded lightly, raised his head slightly, and added: "I'm afraid there is also above." ”

"Everyone put all the maximum protection on their bodies. The further you go inside, the temperature gets cooler, the cuffs of the trousers are all tied up, and the gloves are all on. In the previous paragraph, we should be surrounded by corpse cockroaches, and if you don't want to be a corpse cockroach afternoon tea, hurry up and do it. ”

Qin Shuya was the first to do so, and Professor Hao was already fully armed, and there was no need for further packages.

A group of staff members in the back were carrying large bags and small bags all the way, and they all weighed at least fifty or sixty pounds.

Up to now, everyone is steaming, and if you can wear more, you can try to make yourself as cool and breathable as possible.

Now that they heard the words of Yan Hua and Professor Hao, and the fact that they were frightened a lot before, everyone felt cold on their bodies, let alone obey the order to get dressed at this time.

Even if they don't have this order, they also want to add some protective clothing or something to their bodies, and try to isolate them until they are completely isolated.

Scare the SKR people, they really want to go home.

However, the unknown dangers are carried by someone in front of them, and they are still young and beautiful girls, and this group of old men can't say anything to retreat on the spot.

It's a shame.

After a busy day, everyone was fully armed.

Yan Hua continued to walk forward.

There are no traps on the soles of your feet in this section.

Presumably, the corpse moths on the walls and dome are already lethal enough.

Or maybe these things like to drill holes, there is a good chance that they will damage the mechanism.

So the builder simply gave up wasting time and feelings here, and simply gave up this section of the road completely to the corpse cockroach to occupy.

This also shows how lethal this thing is.

Yan Hua's spirit finally began to tense.

In the past, she felt that it would be very simple to take on the task of "no one is missing", but it was just to reach the end of the mortal tomb.

The big guy thinks that even if there are big pits behind her, she should be able to move.

It wasn't until she walked up the grave keeper's stone chamber that her thoughts gradually changed.

She didn't want to admit that she was worried, worried that she was pitting her teammates too much.

In the face of such indiscriminate attacks, she is really helpless, and there is no way to ensure everyone's safety.

If you want to ensure that no one is missing, you must have the full cooperation of these staff.

It's a daunting task.

When people are in great danger, their minds are blank, and they cannot listen to anyone.

If you can't follow the command and start running for your life, after this distance, I'm afraid you will have to fold into most of the staff.

This is not good news, Yan Hua is not blindly optimistic, she is racking her brains, thinking about how to bring everyone through here safely.

At this time, the last thing she wanted to see happened......