Rock King Zun was thinking about it, even if he couldn't kill the Heavenly Skull and the Blood Demon Boy, he had to find a way to make it impossible for the other party to invade the city in a short period of time.

At this moment, a figure hurriedly came, with a solemn expression on his face, and even a deep worry.

"Rock King, the Heavenly Thorn is injured. ”

The person who came was a resurrection king, and he had only recently come to this city to take charge.

"Skythorn injured?"

Rock King Zun was shocked in his heart, the strength of the Heavenly Thorn Sword King was a little stronger than him, especially his attack power, which was very fierce, and he was the main powerhouse to deal with the Chai Dove Lord.

The Rock King Venerable is actually good at defense, and when it comes to attack, it is actually inferior to the Heavenly Thorn Sword King.

"Was it Lord Wood Dove who hurt him?"

Yan Wang Zun frowned.

Could it be that the Lord of the Chai Dove has made a big breakthrough in his strength recently, and he injured the Heavenly Thorn Sword King?

If it weren't for that, with the strength of the Heavenly Thorn Sword King, he would not be afraid of the Chai Dove Lord at all, after all, the two of them had not fought once or twice.

Even, the Heavenly Thorn Sword King actually has some faint upper hand.

"It's not a wood dove, it's an underworld!"

The resurrection king's face was ugly.

"Hades?"

Rock King Zun's heart sank.

If the wood dove injured the Heavenly Thorn Knife King, it is still under control, after all, they all know more about the wood dove.

Unless he breaks through to the spirit realm, even if he has a breakthrough in strength, he may be able to injure the Heavenly Thorn Knife King, but he will not be able to severely damage the Heavenly Thorn Knife King, if he really wants to fight together, the Heavenly Thorn Sword King will be able to contain him.

Unexpectedly, it turned out to be an underworld.

He knew very well that the strange and powerful demons of the underworld were a bunch of crazy people.

"It's the Hades Demon that appeared last time, his strength has skyrocketed, and he fought with Tianthorn, directly hitting Tianthorn, if it weren't for others to come to the aid and forced away the Hades Demon, I'm afraid that Tianthorn will be more auspicious!"

The resurrected king had a gloomy face.

"Activate the city protection array, you are here to take charge, don't go out of the city to fight. ”

Yan Wangzun's face was solemn, and after giving a command, he left in a hurry.

When the city protection array is opened, it consumes the energy of the spiritual vein, and it has been opened, and after a long time, the spiritual vein will be damaged.

Therefore, when the Rock King Venerable was sitting here, he did not open the big array at all times, and only when the Blood Demon Boy attacked to prevent him from breaking out of the containment and entering the city, the big array of protecting the city would be opened.

After the departure of the Rock King, with the strength of the resurrected king, I am afraid that he will not be able to detect the actions of the Blood Demon Boy and the Heavenly Skull, and will be killed by the other party into the city.

Even if it was only a short time in the city, it would be enough to cause huge casualties.

Because of this, before leaving, the rock king ordered the opening of the city protection array.

......

After Xu Yang severely injured the Heavenly Thorn Sword King, he ran to another Blue Demon Lord Territory, directly attacked the opponent's Lord City, robbed a large number of resources, and injured several Extraordinary Green Demons.

Not only injured the Heavenly Thorn Knife King, but also attacked a certain Green Demon Lord, which can be regarded as balancing the two sides.

When the goal was achieved, Xu Yang did not continue to stay, as before, as if he disappeared out of thin air, no matter how the ancestors and the green demon searched, they could not find any trace of him.

The more you can't find it, the more stress it can cause.

Tianshan City has been expanded, and ten kilometers away from the periphery of Tianshan City, a series of formations have been arranged to defend Tianshan City.

In the past month, several of the ancestral warriors who were stranded in the Wangcheng region broke into the big array, and finally fell.

The difference between the great array of Huaxia and the ancestors is partly from ancient times, partly from the obtained ancestral arrays, and more importantly, the formations opened by Xu Yang in the small game.

After arranging the formation, your warriors will be equipped with a formation talisman that can enter and exit the formation freely, and each formation talisman is bound, even if others obtain it, they cannot use it.

When it came to the subtlety and mystery of the formation, Xu Yang felt that it was much better than the ancestral clan's city protection array.

In particular, it uses some formations in ancient China, which has the effect of being a maze, and after entering, you will not be able to find the direction, and you can't get out of it, or you will return to the original point and cannot pass through the large array.

The arrangement of this kind of formation is mainly psychedelic, and the attack is not the main effect, after all, such a large-scale formation, in order to play an effective attack, it needs to provide a lot of energy.

It is generally arranged on the spiritual vein, so that it can exert its powerful attack power.

Therefore, the formations on the periphery of Tianshan City are all based on psychedelia, supplemented by attacks.

It's not that there is no attack power, in fact, it has reserved an attack circle, and when needed, you can consume spirit stones and demon cores to attack.

If it weren't for the use of demon cores and spirit stones, the energy that was slowly accumulated by the formation alone would not be able to sustain the attack for long.

The original intention of the design of the formation is to cooperate with the martial artists of the previous side, and use the advantages of the formation to kill the enemy who breaks into the formation.

If used properly, a five-star level martial artist is likely to kill a six-star level martial artist who breaks in, which is a big help.

At present, the research of the formation is still ongoing, constantly improving, and developing a variety of formations with different functions, and even miniaturizing the formation.

Just like that, create a formation plate, array flag, etc., and you can arrange a killing array with a wave of your hand.

The formations that rely on energy to urge are all low-level formations, as long as the formations that directly communicate the laws are truly powerful formations.

The research institute is working on such a powerful formation.

And in order to study this powerful formation, it is necessary to have a certain understanding and cognition of the law.

Therefore, it involves the study of laws.

And the study of the law involves more fields, after all, on the way of cultivation, the law is very mysterious.

The foundation of the law of study is related to cultivation, so if you want to study a more powerful formation, you must improve your cultivation.

The research institute has begun to cultivate a group of martial artists who specialize in cultivating the law, studying how to touch the edge of the law with a lower cultivation, not expecting to be able to use the power of the law, just to be able to have a sense of it, and then apply it to the formation and weapons.

The purpose is to lower the threshold for understanding the law.

Xu Yang is very supportive of this.

In fact, the spiritual realm is the perception of the law.

Generally speaking, only the spiritual realm will come into contact with the law.

It would be a great step forward if the institute could take a shortcut and be able to touch the law when it was extraordinary.

Xu Yang feels that nothing will be perfect.

If the cultivation of touching the law is really reduced, then there will inevitably be another problem in it.

That is, just touching the law and seeing the law, but not being able to apply it.

The spiritual realm is not only in contact with the law, but also able to use the power of the law.

Being able to contact but not being able to use it is actually a kind of progress, and you can apply your perception to formations, forging divine weapons, and so on.

This is also the purpose of the Institute, which started this research.

Through the outer formation, Xu Yang appeared in front of Tianshan City.

At this time, Tianshan City had already arranged a heavy formation, and the defense was impregnable.