With the migration of time, more and more creatures invaded the Tiange River Basin, and many of them were powerful.

Yang Tian was in retreat, and the big and small things in the Tiange River Basin were basically handled by Wang Yu and the three of them, while Lena stayed in the Tiange Palace, basically not going out. Except for Wang Yu in the Tiange River Basin, the rest of the people had never seen Lina.

And today, Lena actually appeared on the wall of Tiange Wangzhuang, looking solemnly at a certain direction in the sky.

This is the third month that Lena has come to Tiange Wangzhuang, and it is the first time she has appeared alone on Tiange Wangzhuang, except for Yang Tian who brought her to take Tiange Wangzhuang.

"Sister Wang Yu, where is that direction?"

The only person Lina knows is Wang Yu, and Wang Yu, who is on the city wall at the moment, also said generously, anyway, it's not a secret.

"That's the northern city of our Tiange River Basin, what's wrong?"

"The North City is dangerous right now"

Lina's words made Wang Yuleng pause, and just as he wanted to ask Lina, he suddenly saw a strange person riding a bird-type dark ghost mud monster came to the city wall of Tiange Wangzhuang in a panic.

"This is the Anomaly of the North City?"

Wang Yu recognized the identity at a glance, and looked at Lina with some surprise.

How did she know?

"My lord, my lord is not good"

There were several very clear blood stains on the body of the North City Ability, and the dark ghost mud monster under his feet was not lightly injured.

"What's wrong?"

Wang Yu saw the tragic situation of the stranger in Beicheng and asked loudly.

The strength of Beicheng is not weak, and with the support of Northeast City and Northwest City, it is still reduced to asking Tiange City for help, and in this case, it must be an unsolvable trouble.

"Outside the northern city, a large number of invasive creatures suddenly appeared, and their strength was so strong that even if we had the support of the other two cities, we would not be able to resist it."

"What"

Wang Yu had to be surprised, there were a hundred third-level high-level dark ghost mud monsters in Beicheng, and even if they touched the creature of the third-level peak, they could maneuver.

"Isn't it possible that a hundred third-level high-level dark ghost mud monsters can't resist it?"

"Lord Wang Yu, the dark ghost mud monster somehow, after seeing the invading creatures, actually lost the desire to fight, this is the main reason why we came to ask for help. Without the help of the Dark Ghost Mud, we can't stop the invading creatures."

Wang Yu didn't understand why this was happening, but Yang Tian was also in retreat now, and she had to go to help.

Wang Yu brought Xu Dafu and Lei Xing, as well as two powerful creatures, the Brain-Eating Dire Pig and the Tyrannosaurus Rex, as well as a hundred third-level high-level dark ghost mud monsters, Wang Yu still didn't believe it, and wanted to see if the dark ghost mud monsters brought by Tiange City would have the same situation.

Wang Yu brought the Beicheng Stranger and rushed to Beicheng at a faster speed.

As soon as he approached Beicheng, Wang Yu felt the oncoming dark aura. The terrifying dark aura made Wang Yu's heart palpitate, and he even had the urge to retreat, as did Xu Dafu and Lei Xing. To their surprise, the dark ghostly mud monsters all cowered in place, not taking a step forward.

"This is the case with our Dark Ghost Slim in the North City, and no matter how much we call it, it won't make any difference."

Wang Yu looked a little overwhelmed, when Yang Tian was not in the Tiange River Basin before, Wang Yu at least had the control of the dark ghost mud monsters, which could make her feel at ease, but now the dark ghost mud monsters were all paralyzed. At this moment, Wang Yu looked a little flustered.

When Lei Xing saw Wang Yu's appearance, he said:

"Now, let's go to Beicheng first, and we'll talk about the rest later."

They could only leave a hundred dark ghost mud monsters in place first, and the four of them and two beasts rushed to the northern city first.

After entering the North City, they realized how terrifying the creatures they had to face were.

Level 3 pinnacle dark creature, dark night monitor lizard

Level 3 pinnacle dark creature, Shadow Ice Serpent

There are also dozens of dark mid-tier creatures, black-shelled ants.

The strength of the city lord of the northern city is only a third-level high-level, and without the dark ghost mud monster, even if he hits the full strength of the three cities, I am afraid it will be difficult to defeat the enemy in front of him.

The good thing is that after these dark creatures launched their first attack, they never attacked again, which also gave the Northern City Adepts the opportunity to go to Tiango City to support.

"Beicheng City Lord, when did these monsters appear" Wang Yu asked.

When the city lord of Beicheng saw the arrival of Wang Yu and the others, his face finally looked a little better.

"I suddenly appeared outside the gate of Beicheng this morning, and I didn't even have the slightest motive, as if I appeared out of thin air."

Especially the two dark creatures at the top of the third level, just standing there would give people a huge pressure. The Dark Ghost Mud Monster can't be used, and that's the biggest headache.

Fortunately, the brain-eating dinosaur has reached the third-level peak, which can withstand a dark creature at the third-level peak, while the Tyrannosaurus rex can barely hold off the other one, and the remaining third-level mid-level dark creatures need to be solved by them.

That's the only way they can do it at the moment.

And after a few of them left, a very powerful aura suddenly appeared in the Tiange Palace. Lena, who was at the head of the city, had a surprised look on her face when she felt this aura appear.

Yang Tian, who was in retreat, finally came out of the customs today, a fourth-level external martial artist. Along with the fire ability, they have reached level 4, and the earth and wind abilities are still at the peak of level 3, and the earth and wind abilities do not meet the requirements to advance to level 4, even if the ability increases with the level of the warrior, but it cannot be improved in this regard.

The promotion of wind and earth abilities requires refining a level 4 energy crystal of the same attribute, which is the most common and easiest way to advance. And Yang Tian's main combat power is not the wind type Yin En and the earth type ability, so Yang Tian will use the easiest way to absorb energy crystals in terms of advancing these two attributes.

As soon as Yang Tian came out, he saw Lina, and looking at Lina's happy face, Yang Tian's mood involuntarily improved.

"You're finally out"

"What's wrong? Miss me so much? Yang Tian couldn't help but quip.

But Lina quickly retracted her happy face, and solemnly told Yang Tian about the previous Beicheng Ability.

"You hate this breath?"

"Hmm"

The breath that can make Lena annoying is darkness in addition to the undead, and Yang Tian is more right to favor undead creatures, so dark creatures basically will not appear on the earth during this time period.

"Let's go check it out!"

Yang Tian took Lina to the direction of Beicheng. After advancing to the fourth level, Yang Tian's movement speed was very fast, more than double the speed before.