Gao Han jumped off the high city wall and landed inside the city. Everyone on the wall was working hard, and the people below were also not idle, with people constantly going up to support.

General Shen's adjutant was giving orders, which prevented everyone from falling into panic.

Seeing Gao Han's serious expression, Adjutant Chen immediately came over and asked, "Gao Han, what's wrong?"

"I suspect that mutant creatures will drill into the city from underground." Gao Han told him without any hesitation.

City No. 1 is the largest of all Chinese cities, and he would definitely not be able to find it alone.

Adjutant Chen's expression immediately changed. "Are you telling the truth?"

"Of course, I wouldn't joke about this. I want to know where the soil is weaker and where mutant creatures might be able to get in." Gao Han asked calmly.

Adjutant Chen thought for a moment, "When the city was first built, the military also took this into consideration, so the ground was paved with the hardest stones. However, after countless wars over the years, there must be some damage. I will immediately order everyone to look for it."

"That's troublesome." Gao Han said.

"Student Gao Han is joking. This is also my duty." Adjutant Chen said and left anxiously.

Gao Han was not idle either. If those advanced mutant creatures placed their hopes of turning the tide of the battle on this, then the mutant creatures responsible for entering the city must have something special.

He searched while wondering what kind of mutant creature would dig holes.

After thinking for a long time, I found that there are indeed quite a few mutant creatures that can dig holes.

There is extremely hard steel outside the city wall, and the mutant creatures can only choose to escape from underground.

Gao Han turned around but didn't notice anything.

Adjutant Chen also sent a message saying that they also did not find anything.

Gao Han asked them to look for it again.

Although he didn't find it the first time, Adjutant Chen didn't dare to ignore it. Even if Gao Han's source of information was not very accurate, it was better than ignoring it and letting something big happen in the end.

There was a busy movement in the city, and the sound of footsteps was everywhere.

Gao Han stood on the steps, watching teams of soldiers running past him, when suddenly an idea flashed in his mind.

He grabbed Fugui and said, "Son, can't you find mineral veins? Can you hear the movement underground?"

Fugui understood what he said and felt a little reluctant because he was a silver lizard, not a mole.

"If you find anything, I will give you fifteen intermediate crystal cores and five advanced crystal cores afterwards."

Fugui immediately raised three fingers.

"Okay, then thirty." Gao Han agreed straightforwardly.

Fugui suddenly felt that he was missing something. If he had known it earlier, he would have added another finger.

He sighed and said, as a man, one should keep his word.

It jumped out of Gao Han's arms, walked on four legs, sniffed the ground for a while, and ran in one direction.

Gao Han followed him, passing through walls. Fugui sped up, and he also sped up.

Adjutant Chen saw him running so fast and guessed that he might have made a discovery, so he immediately called a small group of soldiers to follow him.

A minute later, Gao Han followed Fugui to a place, and when he looked up, he found that the person looked familiar.

"Isn't this where injured soldiers are treated and recuperated?"

Gao Han's heart tightened. In addition to the wounded soldiers, there were also some water and wood spirit refiners in charge of treatment. If something happened to them, there would definitely be big problems for the subsequent injured soldiers without anyone to help treat them.

"Student Gao Han, have you discovered something?" Adjutant Chen chased after him.

"I suspect that those mutant creatures might come out from somewhere inside." Gao Han explained immediately.

Adjutant Chen took a deep breath. He also thought of what Gao Han had thought of.

"Then I'll go in with you."

I hope it's not too late.

Gao Han did not refuse and immediately lifted the curtain and walked in. A smell of blood hit him in the face, as well as the sound of injured soldiers wailing while lying on the hospital beds.

Seeing this scene, Adjutant Chen immediately breathed a sigh of relief, as if nothing had happened.

A group of water and wood spirit refiners were urgently treating the seriously injured soldiers and were unaware of anything.

Adjutant Chen looked at Gao Han with an inquiring look.

Gao Han looked at Fugui, who shook his head in one direction and then nodded affirmatively, immediately becoming certain.

"Adjutant Chen, take your men to evacuate this place immediately. I have confirmed that those mutant creatures will come out from here." Gao Han immediately said to Adjutant Chen.

Adjutant Chen did not dare to be careless. With the attitude of "it is better to believe it than not to believe it", he listened to him and called two more teams of soldiers in to carry out the seriously injured who could not walk.

The wounded soldiers didn't know what was going on, but seeing Adjutant Chen's serious expression, they didn't dare to delay and only asked a few questions.

The few people who were questioned were all officers of high rank.

Adjutant Chen also wanted them to help comfort other wounded soldiers, so he told them the situation.

"We suspect the mutants have a backup plan, and it will start from here."

Several officers suddenly became serious and did not dare to be careless.

With their help, the retreat went smoothly.

Gao Han followed Fugui to the backyard of the treatment area. Few people came to the backyard, especially during the battle. Everyone was busy in the front, so even fewer people came.

Fugui stopped on the steps, jumped back into Gao Han's arms, and pointed his claws at a corner in the backyard.

Before Gao Han could say anything, the ground in the backyard suddenly cracked, and these cracks spread to the surroundings at an extremely fast speed.

Soon half of the backyard collapsed in front of him and the ground collapsed.

A mutant creature's two whiskers were exposed.

When Gao Han saw the two whiskers, an image of a mutant creature immediately emerged in his mind, and he finally understood what the advanced mutant creature outside was preparing.

Several talismans immediately appeared between his fingers and were thrown towards the collapsed pit without hesitation.

Gao Han quickly retreated, followed by several explosions.

The ground shook violently for a moment, and the other half of the backyard that hadn't collapsed was blown down, but the effect was significant.

Adjutant Chen heard the explosion and rushed over with his men, and saw this scene.

A large hole was blown out in the backyard, and at the bottom and edge of the hole lay the broken limbs of dozens of mutant creatures, and blue blood was splattered everywhere.

"Man-eating ants!" Adjutant Chen blurted out in horror.

If there was one mutant creature they least wanted to encounter, man-eating ants would definitely be on the list.

They are not big in size, but they are extremely powerful and eat everything. The most terrifying thing is that they like to eat soul refiners, whether they are living people or corpses. If man-eating ants appear on the battlefield, there will never be a single corpse left, and most of them will be completely destroyed.

Not only that, after the corpse of the soul refiner is eaten by them, the remaining energy will be absorbed by them and then converted into their own strength.

If Gao Han hadn't discovered it in advance and reminded them, it would have been a big trouble once these man-eating ants entered the city and spread in all directions.

Not only will many people die, but once the man-eating ants attack from behind, with wolves in front and tigers behind, they will have finally taken the initiative and may collapse completely.

At this moment, Adjutant Chen was extremely grateful to Gao Han.

The soldiers who came later were also very grateful to him. Just looking at so many corpses of man-eating ants made their scalps tingle.

"Everyone be careful, this is not over yet." Gao Han warned loudly.

There are not just dozens of man-eating ants killed in the explosion underground, there are many more.

Gao Han wanted to throw a few more attack talismans down, but this was inside the city and he was afraid that the ground would collapse, giving more man-eating ants an opportunity to take advantage. After thinking about it, he put the talisman back in his hand.

After the man-eating ants at the back of the underground ate the corpses of their companions, they crawled out from the back, and their heads appeared in the pit again.

Gao Han's spiritual energy had recovered a little, and he swung the knife in his hand out without hesitation.

The blade hit the heads of the two man-eating ants, and blue blood splattered out.

Adjutant Chen, who had been worried that they could not deal with so many man-eating ants, suddenly brightened up when he saw this scene.

Yes, these man-eating ants are still underground. They can guard this pit and kill any man-eating ants that emerge immediately.

Gao Han said to him, "Adjutant Chen, take a few teams outside to prevent the man-eating ants from attacking from other places. Just leave some people to guard here with me."

"Yes, yes, yes, we must not neglect other places either." Adjutant Chen looked at Gao Han with gratitude again.

I was just frightened by these man-eating ants and didn't think too much about it.

He immediately arranged for a team of people to stay and took the rest away.

Gao Han breathed a sigh of relief. He was not actually worried. With Fugui around, he should be able to find the man-eating ants if they really drilled into other places. The only thing he was afraid of was that it would be too late.

There is no need to worry too much about these man-eating ants as long as they are blocked in the holes.

The plans of those higher mutant creatures will not work either.

After Adjutant Chen went out, he obviously realized this and immediately mobilized most of the people, and some lightly injured soldiers also volunteered to join.

At the same time, the sound of the talismans thrown by Gao Han also exploded outside.

For no apparent reason, an explosion occurred in the city, causing the faces of the human warriors who were fighting to change, and they worried that something had happened in the city.

"Tingzhou, take care of the Crowned Flycatcher immediately. Something big might have happened in the city." Zhongli He was dealing with the leader of the Giant Shield Mantis, a particularly tough opponent, and he couldn't spare the time.

Zhongli Tingzhou obviously thought of the sound waves just emitted by the peregrine falcon. He glanced at the city wall and found that Gao Han was no longer there.

He found out so quickly, most likely it was Fugui who informed him.

Apart from those explosions, there was no other major noise in the city, so he guessed that Gao Han might be able to suppress the situation temporarily.

Zhongli Tingzhou did not take any chances. The sword in his hand began to emit black gas, and the black gas was stirring on the tip of the sword.

In public, he didn't use any overly conspicuous moves, but that didn't mean he didn't dare.

At this moment, his bloodthirsty mood was transmitted to the black air, and the black air no longer suppressed itself and began to unscrupulously attract the surrounding spiritual energy.

With it as the center of the vortex, spiritual energy gathered towards Zhongli Tingzhou, like a large black hole, madly devouring its surroundings.

This scene attracted the attention of people and mutant creatures from all directions.

The mutant creatures didn't know Zhongli Tingzhou's situation, but they were very afraid of him.

The humans who knew about this all showed surprised expressions.

In fact, from the very beginning, some people have already realized that Zhongli Tingzhou is clearly a light vein spirit, but the strength he now shows and the moves he uses are different from those of a light vein spirit.

The biggest difference is that the white sword light has turned into black sword light.

The black air that absorbed enough spiritual energy quickly condensed into a huge sword, with black light rolling and releasing endless pressure, which frightened people far away and made their scalps numb. They looked at the sword in horror.

The Crowned Flycatcher suddenly felt a huge crisis looming over his head. He had a premonition that if he didn't dodge the sword, he would die!

Zhongli Tingzhou looked down at the Crowned Flycatcher; the hurricane blew up his clothes, making them rustle.

His tiny body was barely worth mentioning in this world, but at this moment, he was unusually tall and mighty, emitting a powerful pressure, like a world-destroying killing god. He held down the long sword and uttered a murderous word from his thin lips, "Kill!"

The illusory black sword suddenly burst out with a violent gust of wind, tearing through the void and slashing directly down from the top of the crowned flycatcher's head.

"I don't believe it!" The pupils of the Crowned Flycatcher widened, his eyes turned red, the hurricane lifted his feathers, and he let out a long cry with his beak raised to the sky. A ball of light quickly condensed and drained all his strength.

Behind him was the gradually rising sun. The sunlight rushed out, but it could not stop the power of the black sword and the light ball. The sky was reflected with only two colors left.

The earth was shaking violently.