Yang Tian's flame ability was raised to the general level, but the level was still at the peak of level 3, not level 4. However, Yang Tian absorbed the Flame Heart Earth Fire and already possessed the ability to advance to the fourth level.

To advance to level 4, the flame ability needs to reach more than 1,000 degrees Celsius, and this limit will also change depending on the individual's constitution, some abilities are below this limit, and some abilities are above this limit, but most of them remain at this value.

On the surface, it seems that fire-type abilities are easier to advance, but they are not. The Fire Ability is the hardest and most dangerous of all the Abilities. How many of the Level 3 Peak Abilities can withstand 1000°C heat?

Therefore, those who can reach level 4 or above are very powerful.

And Yang Tian wanted to reach the fourth-level fire ability, so there was an extra limit. Yang Tian's martial arts level must be increased to level four before the fire ability can be promoted.

When a martial artist is promoted to the fourth level, two types of martial artists will appear. One is an internal martial artist, and the other is an external martial artist.

In fact, it is also obvious that one is a cultivation of internal strength, and the other is a cultivation that focuses on physical strength. For martial artists before the fourth level, the two must progress together, just like Yang Tian who was in the Fire City at the beginning, if he wants to be promoted to a third-level high-level martial artist by relying on his physical strength, then the Lion's Roar Gong must also reach the third-level high-level. Both are indispensable.

Internal martial artists, who can also be called qigong martial artists, are good at controlling qi and have a variety of attack methods. Generally, when a martial artist has reached the fourth level of cultivation, he will choose to cultivate internal strength.

Martial arts warriors, cultivating the physical body. The attack is simple, but the destructive power is amazing. But the martial artists who can persist in the cultivation of external skills know very little. In the eyes of many, the effort and reward of a martial artist can never be equated.

But the cultivation direction that Yang Tian wanted to choose was an external martial artist. Yang Tian's idea is very simple, as a martial artist, he is also an animal trainer. The beast trainer is most afraid of being close, but after becoming an external martial artist, do you still need to worry about melee combat?

The road to cultivating a martial artist is very difficult, but it also varies from person to person.

"There are other people on the premises"

Yang Tian opened the spiritual exploration and found that there were still a few human beings in several factories. They were supposed to be the masters of the factory, but now they are just prisoners.

The Blazing Flame King and the others had already been killed by Yang Tian, which was equivalent to helping them.

Yang Tian continued on the road, and this time he did not encounter any danger on the road. After a detour from the edge of F City, Yang Tian quickly saw the way back to the Tiange River Basin.

The Tyrannosaurus rex also stopped shrinking its size and reverted to its original behemoth.

It didn't take long to return to the Tiange River Basin from F City, and as he got closer and closer to the Tiange River Basin, the King Spirit in Yang Tian's mind was already becoming more and more active.

The summoned beasts far away on the Tiange Wangzhuang seemed to sense Yang Tian's return, and they all flocked to the northern city of the Tiange River Valley.

At this moment, Yang Tian has appeared in the northern city of the Tiange River Basin, a very eye-catching sign of the Tyrannosaurus Rex, the city lord of the northern city will not admit it at all, but after he opened the city gate, he saw a different Yang Tian.

If it weren't for the existence of the Tyrannosaurus Rex and the Dark Red Fire Wolf, the City Lord of Beicheng wouldn't have recognized Yang Tian at all. Becoming a blank elf, Yang Tian's appearance and body shape have changed. In the past, Yang Tian could only be described as ordinary, but now Yang Tian is full of masculinity and domineering.

"Domain Master, is it really you?"

The city lord of Beicheng still didn't believe it, after all, the appearance was too different, and the aura exuded from his body was also extremely different.

At the beginning, the aura exuded from Yang Tian's body was dark and cold, but now in addition to masculinity, there is also a sense of intimacy, which is also thanks to the light power in Yang Tian's body.

"Of course it's me"

Yang Tian retracted the power of light and revealed the aura of dark power, and the suppression attached to the aura of darkness dispelled the concerns of the city lord of the northern city.

"Domain Master, forgive your subordinates for being presumptuous"

After confirming Yang Tian's identity, the city lord of Beicheng immediately knelt in front of Yang Tian, mainly because Yang Tian's dark aura left them with too strong a psychological shadow.

"Let's go back to the city first!"

After the construction of Beicheng, the scale is already very spectacular, several times larger than the original, and the area alone is enough to cover tens of thousands of square meters.

"Good"

The strangers of Beicheng were already surprised when they heard the name of the Beicheng City Lord to Yang Tian, they had never met the mysterious domain lord, and they did not expect to see the true face of the domain lord today.

Yang Tian had already entered the North City with the City Lord of the North City, and the Strange Powers of the North City reacted. The tamers and golems also entered the group.

The lord of Beicheng also built a large hall in Beicheng, although it is not atmospheric, but it is also quite stylish. The four major beasts and the two puppets were outside the main hall, and Lina followed Yang Tian into the main hall. Originally, the main seat of the main hall was the position of the city lord of the North City, but when Yang Tian came, this position belonged to Yang Tian, and the city lord of the North City could only sit in the deputy seat closest to Yang Tian.

"Tell me what happened during my absence!"

"Good"

Under Yang Tian's instructions, the City Lord of Beicheng told everything that had happened during Yang Tian's absence.

"At the beginning, there was a huge change in the surface, and our nine camps were arranged by Lord Wang Yu to recover the wounded first. But within a few days, the insects began to attack our Tiange River Basin on a large scale, but fortunately, everyone had almost recovered by then, and Lord Wang Yu also sent a lot of biological troops to support us. Our nine camps also survived. ”

"But at that time, the domain master was not in the Tiange River Basin, and once he faced a powerful creature, Lord Xu Dafu and Lord Lei Xing could only be killed together, and they also suffered a lot of injuries as a result."

"Fortunately, we seem to have encountered far fewer bugs in the Tiange River Valley than the outside world, so we are very safe when they fight, which also gives us the opportunity to build a city. We didn't fight much, so naturally there were a lot of humans who were willing to take refuge in us, and it just so happened that we needed their help, so we took them all and helped us build the city, and we also gave them plenty of food."

When Yang Tian heard this, his brows furrowed slightly, it is very easy for accidents to happen with such a large recruitment, sometimes. But seeing the complete nine cities now, presumably Wang Yu and they also have a way to deal with it.