Moreover, the Yin Rhino Country also has an extreme reconnaissance method, which is a Yin Soul Magic Weapon that has been passed down from generation to generation by the royal family and used to suppress the country.

If a member of the royal family sacrifices some of their souls, they can activate the Zhenguo magic weapon, which can quickly collect the little breath left by the enemy's actions within a kilometer around, so as to reverse lock the fleeing enemy.

As long as the enemy is within 30,000 meters of the 'Zhenguo Magic Weapon' at this time, then it can be found, and if it exceeds this distance, the Zhenguo Magic Weapon will not be able to catch it.

There is also a time limit, the Zhenguo magic weapon can only retain the enemy's breath for one hour, and after the time limit, even if the enemy appears within ten meters of this object, the Zhenguo magic weapon will not react at all.

With that pillar of black and gray light, it only takes a few clicks to destroy a strong enemy.

I have estimated that with the kind of big means used, it is difficult for a half-step flying immortal powerhouse to retreat when encountered, which shows the power of the royal family of the Yin Rhino Country.

The Imperial Family's methods of suppressing the Kingdom are even ......more terrifying than those of the Yin Rhino Country, but they have not yet confronted the Tomb Country, so I can ignore the threat from the Tomb Kingdom for now.

Just say that the royal family of the Yin Rhino Country is already a real overlord-level existence in the ghost small world.

Unless, as Xiao Xian said, I can control the ancient ruins and have the authority to modify the rules of heaven and earth, otherwise, I can't resist the force of the royal family at all.

In addition to the long-range pillar of light bombardment, the most terrifying thing is actually the three super hoverboats hidden under the palace.

The deputy commander explained that the three suspension boats, each of which is more than a kilometer long, and these three suspension boats are filled with the 'Yin Qi Crystal' unique to the ghost world, which can provide a large amount of energy, and the energy attack released after compression is more than 100 times that of a small suspension boat!

Hearing this kind of information, I gasped at the time, and secretly shouted that I was lucky that I didn't encounter the super hoverboat, otherwise, I would have been caught and sent to the research laboratory in the old city at this moment, and used as a guinea pig for experiments!

In short, just talking about force, the royal family of the Yin Rhino Country is too scary to confront it head-on.

"Ready, let's go down." He commanded in a deep voice, and turned his head to look at the little junior sister wearing battle armor.

I have to say that the high-quality battle armor created by the Yin Rhino Country is a cow, this set of battle armor with a big cloak is worn on the little junior sister, and it is automatically adjusted according to the shape of the little junior sister, it looks like a particularly fitting women's battle armor, if it weren't for the Yin Fire logo on this thing, I would have thought that the battle armor had been replaced.

The peachwood sword and the war knife were both behind her back, and the little junior sister who buckled her helmet and pulled off her transparent mask looked majestic.

In our squad, the little junior sister is forcibly promoted, although the spell foundation is solid, but the combat experience is the least, to put it bluntly, she is the weakest link in us, and it is appropriate to enhance her strength, so, this set of equipment is the most suitable for the little junior sister to use, and the little fairy and the three female ghosts have no objection to this.

I nodded with satisfaction, turned my head to look at the warships patrolling in the distance, estimated the position, jumped forward, rowed a graceful arc, and fell into the water almost silently, at the same time, a great witchcraft in the 'water witchcraft' has been urged.

It was like a transparent bubble wrapped around me.

This is ancient sorcery, much more clever than the water amulets and other methods I used before, not to mention breathing, just flexibility, I feel like I have become a shark, and I am very comfortable when I fall into the water, I can swim at high speed, and I am not resisted by the water at all.

Even if you dive thousands of meters, it is estimated that you will not feel tired, and sure enough, ancient witchcraft is powerful.

Xiaoxian, Fang Rou, Jin Hena, and Xiao Bao'er all followed closely behind me, diving rapidly in the dark and lightless river water, where visibility was particularly low.......

There are a lot of strange-shaped creatures in the river, some of them are very large, and I have the feeling of returning to the Yin Si Styx again, and the images of the creatures here are not far behind those hideous guys in the Styx, and they are all heart-palpitating.

My ghost companions and I both have hidden breath fluctuations, and the creatures in the river can't easily spot us.

This river is very deep, it doesn't feel like a river, there is a feeling of sinking into the abyss of the seabed, fortunately, after ten minutes, we fell to the bottom of the river down-to-earth.

The concentration of yin qi in this position is more than ten times that on the ground, and streams of black currents are permeating the cold water, even if the little fairies have their ghost eyes, the visibility is only about 100 meters, and my yin and yang eyes are in this environment, and the visibility is pressed to about ten meters.

The gravity aspect is even more terrifying, it is much higher than on the shore, and it feels much more difficult to move.

"What a horrible environment!"

I looked left and right, muttering in my heart, I had already identified the direction before I came down, and my face was always facing the direction that was locked, so I wouldn't lose my way after falling to the bottom of the river.

Pointing to the direction of his face, the four yin spirits nodded at the same time, and then, step by step, we approached the target at the bottom of the river.

This process is extremely careful, the deputy commander of the guard regiment said that the reconnaissance means of the old city are comparable to the imperial palace, it is a reconnaissance network of yin air currents that covers the old city alone, the density and intensity are the highest, and it will react to the creatures in the river that are close to the old city.

Even if the Yin Airflow Monitoring Network covering the Ghost Country was destroyed, it could not affect the defense of the old city.

This kind of reconnaissance method is also used in the tomb of the country, and the method of reconnaissance of the Yin air flow was originally successfully studied in the research laboratory of the old city, and the two countries have invested too much effort in it, and this achievement is shared by the two countries.

It is very difficult to avoid such a high level of Yin flow monitoring.

It is certain that yang energy and anger cannot leak at all, and it is also necessary to use the invisible concealment spell to the extreme.

In addition, you also need to pay attention to the movement speed, once the speed is too fast, it will be monitored, even if you cast a concealment spell, if you are taken care of, it will be seen through for a long time.

Therefore, the movement speed of the four girls and I at the moment is basically the same as the swimming speed of the creatures in the river, so that even if we are swept away by the keen yin current, we will be misjudged as the creatures in the river, and we will not raise the alarm to the guards in the old city.

This is only the periphery, the reconnaissance intensity is not the largest, once you arrive in the old city, the density of the yin air flow is higher, and the advanced concealment technique can also ensure that it will not be destroyed for twenty minutes in the old city, once the time is too long, it will definitely be discovered.

Therefore, if you want to move freely in the old city, the first thing you need to do is to destroy the control core of the Yin airflow monitoring system here.

Just like what Chu Nianqian and his party did to the palace of the Yin Rhino Country.

But after destroying the monitoring core, it is easy to go wrong if you turn your head to save the senior sister and them.

After destroying the monitoring core, a large alarm will be issued in the old city, and the ghost guards will gather and block the small cities under the river, and the detained felons may be transferred immediately, so my plan is to divide the troops into two ways, one way to destroy the monitoring core, and all the way to rescue the left makeup and them.

These two things must be carried out at the same time, and then, meeting halfway, and then there is a hard-fought breakout battle, which is no way to do it, and it is impossible to save the target without alarming the other party.

Fortunately, the change was sudden, and their reaction could not be so fast, and there were only guards and 'R&D masters' sent by the two countries in the old city, and there were no levitation boats, which was an opportunity for us.

The city is built under the river, in fact, there is not much room for movement up and down, and the gravity is much stronger than on the shore.

For these reasons, it is not suitable for the flight of the suspension boat, so there is no suspension boat cruising in the old city, but don't forget that there is a suspension boat over the river.

The good news is that the alarm in the old city is more difficult to notify the outside world due to the stronger gravity, and the speed of information transmission will be delayed by gravity, so the suspension boat above the river will not immediately know that there is a change below, which can be regarded as a defensive loophole.

Because of this, I dare to carry out the current plan.

"It's time to get to the tunnel at the bottom of the river." Fairy pointed ahead.

It looked like a small hill at the bottom of the river, with a large hole in it, which was the entrance to the tunnel leading to the underground city.

Without saying a word, I led the fairies down the tunnel.

In the tunnel where the black water flowed, there were bands of Yin Guards patrolling through from time to time, but they couldn't detect us at the slightest point of cultivation, and finally, a metal gate appeared at the end of the tunnel.

We stopped by the gate and waited.

At a certain moment, a patrol of guards returned, and five or six purple lights came out of the gate, and after scanning the guards in the black water, a circular hole opened in the door.

The Yin energy blocked the river from pouring in, and the Yin Soul Guards returned to the old city from here.

And the five of us silently followed this group of guards and blended into the old city.