After no longer hiding, the speed of the search between the two was significantly accelerated, but the people from the research institute did not show up at all, which made Yan Zhengfeng feel a little bottomless.

After all, in the current situation, he and Zhao Yi's situation is very passive, the number and location of the enemy are not clear, and they are very unfamiliar with the terrain here, so they may encounter some sudden danger.

Therefore, although they are searching, they are also very careful, always keeping an eye out for any possible places in the vicinity.

This caution was not in vain, about half an hour later, when they searched a room as before, a sudden change occurred, and a dense crowd of zombies suddenly poured out of the next room, silently, blocking the two of them in the house in an instant.

It seems that these zombies are the ones I saw from the outside before, the zombies are still carrying rain, and their clothes are soaked, but the strange thing is that these zombies seem to be controlled by people, they are well in advance and retreat, and they don't make a sound from beginning to end.

If you hadn't been on high alert, you might have been able to sneak up on them.

Yan Zhengfeng held the dagger with his backhand, and easily eliminated the corpse group with Zhao Yi, it was just an ordinary zombie, and the two of them were very simple to deal with.

The temporary victory did not make him relax his vigilance, this was just the advance of the research institute, a place that even Lu Ming cared about very much, and should not only encounter this danger.

"Since there are corpses, the entrance to the institute should be near here, let's look carefully and don't miss anything suspicious."

After solving the zombies, Yan Zhengfeng turned his head and said a few words to Zhao Yi, and then the two searched the house very carefully, not even under the bed and the wardrobe.

But after studying for more than half an hour, he didn't find anything wrong, which made him more and more anxious.

"Go to the backyard."

As if sensing that something was wrong, Lu Ming's figure also appeared beside Yan Zhengfeng, looking at the layout of the house, a flash of clarity flashed in his eyes.

Although he hadn't been there, he had heard about it, and a few years later it was made into a city settlement, though it didn't seem to accept outsiders.

Now that I think about it, this gathering place should be related to the power of the institute, but it has just not been established yet.

"Yes."

Yan Zhengfeng nodded, didn't ask anything, obediently followed behind Lu Ming, and came to the backyard together.

It's a small yard, the space is very limited, and there are some tattered household utensils, which don't seem to be too special.

But he knew very well in his heart that since Lu Ming had specially asked him to come to this place, he must have discovered something.

"I think it's here, but I don't know where the entrance is." Lu Ming frowned, looked around in the backyard, and his tone was slightly impatient: "Is there some mechanism, it should be underground......

Yan Zhengfeng looked at him and helped to find him, but he didn't have a clue for a long time.

"Found it."

Soon there was news from Lu Ming's side, Yan Zhengfeng hurriedly followed, and saw a few stone bricks lifted in front of Lu Ming.

Underneath the stone bricks is a passage that extends downward, wooden steps, and the passage is so long that it is not clear where it leads.

"Go in and have a look."

A gleam flashed in Lu Ming's eyes, and he took the lead in walking in, Yan Zhengfeng looked at the dark passage in front of him, and was a little stunned in his heart, but he still stubbornly followed.

As he descended the stairs, the space around him began to widen, and there were lit wall lamps on the surrounding walls, as he had guessed before, there was no power outage here.

After walking for about ten minutes, several people came to a hall underground, which was a very large space, and there were several wall lamps in the hall to dispel the dimness that should have been.

In front of them, a heavy metal door crouched like a monster, shut, and next to the door was a cipher, with a slight tinge of technology.

"Stop!"

Just a few steps forward, the strong light above the metal door suddenly lit up, shining on several people, and the dazzling white light made Yan Zhengfeng and Zhao Yi both squint their eyes.

As if he hadn't received any influence, Lu Ming stepped forward and gently pressed his hand on the metal door.

"Boom!"

Immediately afterwards, the metal door weighing dozens of tons collapsed in an instant, and the broken metal collapsed all over the ground, and a heavily armed soldier stood behind the door, led by an officer holding a walkie-talkie, staring blankly at the empty space in front of him.

Yan Zhengfeng was also a little stunned, but soon he reacted, pulled Zhao Yi to the side, and immediately after, a dense gunfire rang out, and the bullets fell on the ground behind the two, leaving a series of sparks and dirt chips.

In fact, Zhao Yi's reaction was also very fast, and when Yan Zhengfeng pulled him to dodge, he held up an ice shield, and most of the bullets were blocked by the ice shield.

Stranger!

The situation in front of him made the leading officer's face gloomy, holding the walkie-talkie in his hand, desperately contacting the command center, but he still couldn't figure out how the enemy broke through the metal door.

Obviously, the two supernatural beings in the distance didn't make any moves, and this gate that had been carefully transformed by them was actually broken open inexplicably.

"Let them in."

Unexpectedly, a deep male voice came from the walkie-talkie, and the leading officer froze slightly, he didn't expect to receive such an order.

But soon he reacted and stopped his men's attack, and all the soldiers stopped firing, but instead of putting their guns down, they looked at the officer with a blank expression.

"The boss said let them in."

Glancing at Yan Zhengfeng and Zhao Yi who were hiding in the distance, the officer was also a little confused about the current situation, but the voice on the walkie-talkie made him dare not have any thoughts of opposition at all.

This was the first time that the Boss had contacted him personally, a voice he had only occasionally heard in the Institute.

The hall fell silent for a moment, Yan Zhengfeng looked at the strange scene inside the door, a little confused, he didn't know why the other party stopped attacking, but this also gave him and Zhao Yi a little respite.

"What should I do?"

Zhao Yi's arm was grabbed by Yan Zhengfeng, his face was a little nervous, he was startled when the metal door collapsed just now, and he still couldn't figure it out.

These guys, in order to attack them, there is no need to destroy the barrier, and even the door to hinder them has been automatically opened.

He couldn't see Lu Ming, so he just thought that the metal door was opened by the survivors inside the door themselves.

"Let's ...... first Let's go inside. ”

I wanted to say wait a minute, but when Yan Zhengfeng saw Lu Ming, who was walking in as if no one was walking in, he suddenly had a headache and was forced to change his words.