After half an hour, just as two floors of the building had been excavated and the bottom floor began to appear, a roar and fierce fighting sound came faintly in the tunnel located in the air of the underground city.

"You demons, hand over the people, otherwise you will be killed completely!" A rough roar came from the tunnel.

"Hurry up and block the passage!"

The next moment, a violent energy fluctuation came from the cave above, and I felt the top of my head vibrating.

Ling Li and Dan Tai Muye looked at each other. This should be the strong men from the Eastern Region attacked him.

Now is a good opportunity. The evil cultivators and demons stopped digging, and some of them jumped into the air and began to reinforce the defenders in the passage.

The raid from behind is the most convenient way to avoid raiding from behind.

Ling Li was about to take action, but saw seven or eight guys in black robes walking out from the ground from the opposite side of the square.

"Humal, you will take the people from Yingshan Hall to continue digging, don't worry about the affairs there." A cold, slightly hoarse voice said.

"Yes, Lord Holy Envoy!" An evil cultivator with a big beard covered in face stroked his chest with his right hand and bowed.

Some people continued to start digging, and the men in black also soared into the air and entered the tunnel.

Ling Li suspected that the missing Eastern Region practitioners were at the place where these people came out, so he did not take action for the time being.

Before raiding the enemy, he still wanted to rescue the robbed people first, otherwise in the battle, these evil cultivators would regret it if they used these people as hostages or committed suicide in a crazy way.

Thinking of this, he continued to hide his body in the shadow behind the wall. While observing the movements of the enemy, he carefully considered the rescue plan in his heart...

Standing in a dilapidated building with more than ten floors left, looking down at everything in front of you. Although there are ruins everywhere, the excavated building turned out to be a square of considerable size, and there was not much to block their view.

The battle in the tunnel above seemed to be getting more and more intense, with violent rumbling sounds coming out through the mountain, and there were still vaguely mixed with shouts and scoldings.

The battle continues and is getting closer. It seems that the personnel of the Eastern Region have the upper hand.

As the original guards around the square entered the passage and provided reinforcements, there were not even a few people standing guard besides excavating and cleaning up the ruins.

Ling Li and Dan Tai Muye came down from the collapsed high building, walked half a circle along the outside of the square, and with the help of the ruins, they came to the place where the black-robed men appeared just opposite the square in a hidden way.

This is a very solid monolithic five-story building with elevators and emergency pedestrian passages deep into the ground, and there are several floors underground, some similar to underground air defense facilities.

The passage to enter this underground air defense facility is located on both sides of the lobby on the first floor of the building. There are stairs and elevators, but the elevator has been damaged long ago, and a large hole has been broken in the metal door of the elevator shaft. The traces of the hole are very new, and it is likely that the cultists were breaking while cleaning up alien insects or other creatures.

There was no defense on the passage entrances on both sides. Ling Li thought about it, but chose the elevator shaft on the right.

Since the other party was very relieved not to send someone to guard the situation, there must be many protective and surveillance methods arranged in the stairway passage.

The two walked to the abandoned elevator shaft and radiated their spiritual senses to check them. They found that although the structure was a little distorted and deformed, the overall preservation was still intact. The depth inside was about 60 meters, and it seemed that they were blocked further down.

"It seems that this can also reach the bottom." Ling Li said.

Tan Tai Muye said, "I'll go down and take a look first!" After that, his body twisted, and he had already flew into the elevator shaft and jumped directly.

Ling Li thought to himself that this guy is very skilled and brave, and others can't learn it, otherwise he wouldn't have enough to have ten lives.

Even so, he followed suit and jumped down with Dan Tai Muye.

Anyway, he was cushioning underneath, even if he fell down, he would hit this guy first.

Dan Tai Muye is indeed strong. He only opened the domain field when he was about to land. His body suddenly stopped falling and then fell steadily on the ground. Unlike Ling Li, he let his body float on a high place and slowly descend.

The elevator alloy steel door at the exit has been severely deformed, twisted and embedded between the wall columns of the exit. If the door breaks out, there will definitely be a lot of noise.

Dan Tai Muye's eyes fell on the ventilation and maintenance entrance of the elevator shaft, "They arranged small protective formations there."

This time it was Ling Li's turn to show his skills. He approached the maintenance window and put his hand on the wall. At the prompt of the system, he absorbed the energy of several source energy crystals that provided energy to the formation.

Without energy, the formation will be scrapped and has no effect.

Even Dan Tai Muye couldn't do this trick.

"This ability is very powerful. If you have the chance in the future, I will take you to the treasure house of the Dark King or the Blood Demon Old Monster's house..." He also looked at Ling Li with some envy and said.

The two of them crawled out of the maintenance window and came to the passage of the underground air raid shelter.

"Be vigilant and defend your country!"

Ling Li saw the dark red slogans sprayed on the elevator wall, and felt like he had the illusion of visiting an underground arsenal on Blue Star.

There were no people on this floor. Ling Li and Dan Tai Muye were preparing to search up the passage. When passing through the corridor, they saw a few scattered human bones in the room. The surface of these bones was a little weathered. It seemed that these people should be ancient humans who died in the disaster.

This underground air defense facility is a tight reinforced concrete fortress. Although some places are severely distorted due to changes in the earth's crust, revealing thick steel bars, the overall situation is basically intact.

There is no light at the lower level, and there is no trace or breath of evil cultivators after their activities. It seems that they have just checked it slightly and have not used it for a long time.

The two of them went up two floors along the stairs in the darkness, and then they felt the little dim light coming through the corridor outside.

Turning to the corridor, you can see a small power source lamp embedded on the wall at the corner more than ten meters away, emitting a pale yellow light. The walls of the corridor are covered with large areas of mulachedness, revealing the gray concrete wall. On the other side of the corner, the light seemed to become much brighter, and you could hear the sound of some people talking.

As he approached the corner, Ling Li suddenly smelled the aroma of wine and meat and came over.

It must be someone!
Chapter completed!