Through Tianshu's narration, Feng Qi gained a detailed understanding of the reason why he chose to self-seal the underground prison.

Tianshu, who was out of control at that time, was chasing the beings in the realm back to the human world, but he did not have the ability to return to Tongtian Road like Mu Zi did.

At this time, he was undoubtedly a time bomb.

A state of out-of-control may appear at any time, and during the period of out-of-control, he cannot control his own behavior at all.

More importantly, the time of loss of control is completely unknown.

It may only be a few hours, or it may be a few days, and it may not be safe anywhere.

Maybe it will enter a human city out of control.

This would be a terrible disaster for major cities that had just established their cultivation systems at that time.

Faced with this situation, Tianshu, who could never find Mu Jun, could only choose to seal himself.

Only in this way can we solve a series of crises that may bring to human civilization.

After understanding the reason, Feng Qi couldn't help but ask:

"Uncle Tianshu, I can understand your choice to seal yourself, but can the metal used to make this prison withstand the power that explodes when you lose control? Did humans have the ability to make such special metals at that time?"

As he spoke, Feng Qi turned his attention to the metal railing.

"The origin of this special metal is not simple. It is a precious treasure I obtained while guarding Main Road No. 32. It can not only absorb power, but also has the property of sealing power."

Having said this, Tianshu looked at Feng Qi and said:

"You can try to get in touch and you will understand what I mean."

When Feng Qi heard this, he didn't hesitate. He immediately took a few steps forward and reached out to touch the metal railing.

Suddenly he felt an icy coldness stirring in his heart, and the purple soul imprinted on his bones was automatically activated and began to resist the invasion of this power with a sealing effect.

"In addition to this metal that seals the activity of spiritual energy, the handcuffs and legcuffs on my body are made of Hunyuan black iron, which has extremely strong hardness and toughness." As he spoke, Tianshu stretched out his hands, revealing the handcuffs.

black metal on.

While looking around, Feng Qi accidentally discovered that this metal seemed very familiar.

After thinking carefully, he felt that this metal seemed very similar to the metal monument outside the Star City shelter.

Thinking of this, he immediately asked:

"Uncle Tianshu, I know that you harvested many precious treasures (relics) while guarding Tongtian Road, such as these special metals, but what I am confused about is how you brought them back to the human world. At that time, you were always out of control.

You can't just take these treasures with you."

Facing the inquiry, a smile appeared on Tianshu's face, and he turned around to reveal the divine pattern on his back again.

As the divine patterns flashed, the black hole in space slowly emerged.

I saw a black iron block the size of my palm falling from the black hole in space and hitting the ground with a loud noise.

"The divine pattern given to me by the old woman also has a special function. It can create a small space that can be carried with me to store various items, and the size of the space will gradually expand as the divine pattern grows. After I return to the human world,

He once handed over a large amount of treasures he brought to Star City Military Headquarters for use."

"hiss!"

After understanding the reason, Feng Qi looked surprised.

He had only heard the narrator talk about the space ability, but he had never seen it before.

But I didn't expect Tianshu to have such abilities.

This also explains why Tianshu, who was out of control, was able to bring back these precious metals.

I think that when we build a shelter in Star City in the future, we will use the special metals given by Tianshu.

The strength of this special metal is evident.

It has limited effect against Xiaohei, but its effect on blocking creatures in other fields is excellent.

A kind of metal sealing power, a kind of metal binding the body. This cage is obviously a sealing place built by Tianshu for himself, it can even be said to be a coffin.

He has been waiting for Mu Jun.

If Mu Zhen didn't show up in the end, he would probably end up here.

From a historical perspective, this may be the final outcome of Tianshu.

During the chat, Tianshu continued to tell relevant information about Tongtian Road.

In Tianshu's eyes, all Tongtian warriors are like frontier warriors, guarding all the main roads leading to the human world and resisting most of the domain forces that want to invade the human world.

An old fan said it in the description of the previous timeline.

Before he led his tribe to open a road to the human world, he was blocked by Tongtian warriors. In the end, he was the only one who survived.

But judging from the time point, it is obvious that what the old fans encountered was not Tianshu.

After all, Tianshu has been self-sealed for more than 400 years. During this period, he has never returned to Tongtian Road, let alone contacted the outside world.

It can be seen from this that there are not many strong human beings on the road to heaven.

But Tianshu couldn't describe how many strongest human beings there were on Tongtian Road.

He is only responsible for guarding the No. 32 main road and the surrounding branch roads, and has very little contact with the Tongtian warriors on other main roads.

For the last 30 years, he was alone and had no contact with any other human beings.

So he didn't know much about the subsequent construction of Tongtian Road.

As for why the Tongtian warriors guarding the border between the two worlds did not choose to return to build the human world, through Tianshu's explanation, Feng Qi had a clear answer in his mind.

The first reason is that the Tongtian warriors obviously do not know the numerous crises facing human civilization.

For example, in Tianshu's eyes, the challenges facing human civilization are gradually weakening, and the construction of major cities has been on the right track. As long as we continue to persist for a period of time and survive the most difficult period, human beings will be able to compete with the forces in the field.

Gradually regain the disadvantage.

Apparently the other Tongtian warriors had the same idea as Tianshu.

Fighting on humanity's first line of defense, they did not know that the challenges facing the rear were far more difficult than they imagined.

It is even believed that as long as the Tongtian Road is guarded well, human beings' advantages will gradually expand.

The second reason is that if the Tongtian Warriors return to the human world, the level of disaster faced by human civilization will be greatly increased.

This problem is actually easy to understand.

Tongtian warriors guard the first line of defense and only need to hunt down the domain forces that dare to come and clear the level.

But once they choose to return to the human world and build human civilization together with all mankind, the challenges they face will greatly increase.

The emergence of a large number of domain forces will definitely be a disaster for ordinary people.

The human world is far larger than Tongtian Road, and the workload of Tongtian warriors will also be greatly increased. In addition to dispersing the domain field, they also need to protect human cities from attacks by domain creatures.

Protecting these two words seems simple, but the price you have to pay is by no means as easy as imagined.

After all, the number of Tongtian warriors is limited. Choosing to leave the main battlefield in the human world is undoubtedly a disaster for all mankind.

Choose to guard Tongtian Road, although there will still be domain forces to pass the level.

One type is like the Lord of the Mist, whose vitality is severely damaged even if he clears the level, and his tribe suffers heavy losses.

The second type is Xiao Can who was lucky enough to choose a hidden route and finally successfully led the whole clan through the border.

But after all, the forces in the field that can pass the customs are only in the minority.

In the eyes of Tongtian warriors, these cleared domain forces are a difficult challenge to human civilization, but they believe that the human warriors behind the scenes will solve these problems.

In order to relieve the pressure in this area, children who grew up on Tongtian Road will be sent back to the human world to join the frontline training in the supply area against the domain forces, and eventually return to Tongtian Road.

While these children were sent back for training, they were also meant to help the Tongtian warriors collect intelligence about the human world.

Just like Lu Yue.

As a descendant of the Lu family's swordsmanship, he was obviously taken to Tongtian Road by Mu Zhen.

When he was about to reach adulthood, he was sent back to the human world.

According to Lu Yue's normal growth trajectory, he will eventually join the front line of the supply area, become a frontline soldier, and then return to Tongtian Road after completing his training.

During his training, he was able to bring a lot of information about the human world to Tongtian Road.

But this intelligence obviously does not contain relevant information about the latent forces in the field.

After all, ordinary frontline soldiers have no access to relevant information in this area.

If the Tongtian warriors knew that major cities had been corrupted by domain forces, they would obviously not continue to guard the front line and would inevitably withdraw some of their strength.

To sum up, all human forces are unaware of the existence of the Road to Heaven.

But in contrast, Tongtian warriors can only see the surface of the development of human civilization, but cannot see the rough waves behind it.

In fact, if it weren't for his ability to travel through time lines.

He would have never imagined that there were a lot of dark sides hidden under the surface of the steady development of major cities.

So he could understand why the Tongtian warriors did not retreat to the human world.
To be continued...