It's a large, self-contained space, and when you look at it, it's like you're looking at a well-planned city.

There are only four floors of small buildings at most, the streets are clean and wide, and the ghosts in uniform seem to be busy with something, and they are all in a hurry, and they are not interested in glancing at the patrolling guards.

The old city is hundreds of meters deep into the soil layer of the seabed, about 100 meters high up and down, and the dome is cast out of unknown metal, and the entire space has no other light except for some ghostly fires that glow with green and blue light, and is basically shrouded in darkness.

This is the environment that ghosts are most familiar with, and the darkness does not have much effect on their lives.

The yin qi is thick, but it seems to be controlled by some means, and there is no ghost qi permeating everywhere, so my yin and yang eyes suddenly widen up, just like a city in the yang world, and I can see the distance when I raise my eyes.

Deep underground, or deep in the strata below the river, the gravity is too strong!

Both the four ghosts and I can feel that it is very difficult to move, and the other party is also affected by this terrifying gravity, so the speed of action will also be affected.

According to the 'deputy commander's explanation, I have a good understanding of the old city, and I interrogated the location of the research room where the senior sister was being held, and also learned where the core hub of the city's Yin air flow scanning is.

It's like having a map of the old city in our heads, thanks to the 'honesty' of the deputy commander.

The two positions were in opposite directions to the old city, and from this moment on, we had less than twenty minutes to complete two things, and our shoulders were heavy, heavy, and overwhelming.

"Xiaoxian, Bao'er, Hena, you immediately go to the location where the control core is, whether you use ghost arts, or form a three-talent array to bombard, in short, you must destroy the control hub before twenty minutes, otherwise, we will soon show our tracks, and the ghost guards of the entire old city will follow the guidance of the Yin airflow to surround and kill us accurately and quickly."

"After destroying that thing, they will become headless flies, it is impossible to find us easily, your task is very heavy, you have to be improvised, remember, protecting yourself is the criterion, no matter who stops you, there will be no mercy!"

I give an order to the three female ghosts.

"Understood." The little fairies nodded solemnly, and they were about to do things separately.

"Wait a minute." I was about to leave, when suddenly, a light crossed my mind inexplicably, and I remembered something in a flash of inspiration.

"What's wrong?"

The little fairies who were about to move stopped their movements and looked at me suspiciously.

"Xiaoxian, I thought of one thing, and it was also a loophole in the bold reasoning you made against Chu Nianqian and his party before, at that time, after listening to your reasoning, I felt that something was not quite right, and I finally figured it out at this moment."

"What's wrong?" Xiaoxian asked.

Time was of the essence, so I told her directly.

"Xiaoxian, the reasoning you made, in fact, is based on the 'ghost small world preferential treatment of visitors from the burial door world' that we deduced in advance, and from this, many speculations have been extended."

"But the problem is, strictly speaking, Chu Nianque's person is not actually an indigenous human in the Sealed Burial Gate World, but a mage who ran from our world to the Sealed Burial Gate World, the laws of heaven and earth should be able to understand this, right? From this point of view, he should not belong to the world of the Burial Gate, so why should the laws of heaven and earth give him preferential treatment? ”

"Huh? Hey......? Brother Fang, if you don't say it, I forgot about it, something is wrong, it is indeed wrong. ”

The little fairies and the three ghosts were all taken aback.

Indeed, the biggest basis for our reasoning is that the rules of heaven and earth give preferential treatment to the invaders of the Sealed Burial Gate World, but if you think about Chu Nianque's origin, it seems that that reasoning is untenable.

"That's right, because we first deduced that Chu Nianque had mixed into the Kunzang Dao Sect, so we subconsciously regarded Chu Nianque as a mage in the world of the Sealing Burial Gate, in fact, he was born in the original world."

"This kind of thing, it is impossible for the will of heaven and earth in the ghost small world not to judge. In this case, the reasoning does not hold water. According to this logic, the ghost small world should not give Chu Nian the right to preferential treatment. ”

"But then it's a big problem. Why is it that his mind can be locked and can extend more than 15,000 kilometers with an unrestricted amplitude of hundreds of times? Could it be that he really possessed some kind of anti-heaven magic weapon? Convoluted....... ”

Xiaoxian blinked, her face full of puzzlement.

"Don't think about it yet, but I suddenly thought of this, and immediately reminded you, I'm afraid that I will forget about it as soon as I toss, everyone knows this'deduction loophole', and when you have the effort, help me figure it out, because, I feel that there seems to be something great hidden here, and maybe, it will help the next step."

"Now, concentrate all your forces, act separately, and do your own thing well." I hurriedly spoke.

"Understood, Brother Fang, you two should also pay attention to safety." Xiao Bao'er answered, and turned her head to look at Fang Rou who was wearing battle armor.

Fang Rou nodded in response.

After the immortals destroyed the core hub of the Yin Airflow of the Old City, they would join us at the designated location in the city.

Everyone knows this plan, but they also understand that the plan has not changed quickly, so on the way to infiltrate the old city, I discussed with the three female ghosts and came up with two backup plans.

If something goes wrong and we can't meet at the predetermined location of the old city as originally planned, we still have a second or even a third meeting point.

The mind is suppressed in the body and cannot be extended, once it is separated from the three female ghosts, it will be impossible to contact, so a backup plan is necessary.

I have fully considered all kinds of accidents, and arranged a backup plan for accidents, I just hope that everything will go smoothly and the backup plan will not be used.

"Protect yourself." I was very uneasy, and repeatedly told the three female ghosts.

Xiaoxian was a little impatient, waved his hand, and walked away with Jin Hena.

They all use concealment spells, and the ghost guards patrolling the streets can't spot us for the time being.

My sister and I turned around and walked into the opposite direction of the fairy and the others, sneaking towards the Xenomorph Species Research Room, carefully avoiding the growing number of shadow guards.

Gradually, a domed, massively built building came into view.

According to the deputy commander's account, this is where the alien species research laboratory where the invaders of various alien worlds are imprisoned, and the captured alien creatures are all sent here for the 'research and development masters' to experiment.

The guards were extremely tight, and not only the familiar Servant Guards, but also the Shadow Legion wearing other styles of uniforms.

Their weapons are different from those of the Yin Rhino Country, and the markings on their bodies are obviously different, the Yin Rhino Country guards have blue flame marks on their clothes, while the Yin Soul Guards of the Tomb Country, the marking pattern on their clothes is a white tombstone, yes, it looks like a shrunken white tombstone is firmly marked on their uniforms, this aesthetic really makes me speechless.

The number of guards marked by the white tombstone is more than that of the guards of the Yin Rhino Country, which shows that both countries are very concerned about the safety work here in the research laboratory, and at the same time, it can be felt that the Yin air flow scanning in this area is more intensive and stronger, and the guards entering and leaving are subject to layers of scrutiny, and the supervision is unprecedented!

Fortunately, my little sister and I have clever concealment spells, even with such a means of protection, we can resist more than ten minutes ......, yes, there is only about fifteen minutes of safe time left, I hope that Xiaoxian and they can successfully find the target and destroy it.

Following a certain group of guards of the Tomb Hidden Kingdom, after a series of checkpoints, my sister and I have walked into the dome building.

I have repeatedly confirmed that the information given by the deputy command post is true, otherwise, how dare I reverse the plan according to the intelligence?

The floor of the research room is paved with metal materials, and when you enter it, you feel that your mana and thoughts are suppressed and shrunk deeper into your body, and every inch of space in this place is filled with invisible energy, which makes people feel suffocated, and it is indeed where the control is super strong.

There are a lot of staff members walking back and forth.

They were dressed in coats that covered their entire bodies, and the coats were not white, but dark gray.

With a transparent helmet on his head and gloves of the same color on his hands, he looks as if he is a human scientist studying radioactive dangerous substances.