In this way, it will inevitably cause everyone on the defensive line to be exhausted, but there is still no way to delay the attack of the living dead, or it will not be long before there will be new places broken through by the living dead.

Lin Song didn't think well at all, in fact, it was only less than an hour later, and another place was broken through by the living dead. At this time, the snow wolf suddenly stood up, put his two front paws on Lin Song's shoulders, and couldn't stop whining.

Lin Song was distressed, this time the place where the defense was broken, there was no place to retreat, how could he block the opponent's attack? You know, it's not wise to fight with the living dead now. The effect is generally not to mention, if you are scratched by the living dead casually, you may also be infected and become the living dead, so you can't collide with the living dead head-on.

But the snow wolf's reaction gave Lin Song a hint, and Lin Song suddenly realized. Many viruses are not zoonotic, let's just say that African swine fever, which was once epidemic before, once a pig is sick, it is basically equivalent to a death sentence.

But what if it was human? This African swine fever virus is simply not possible to spread between humans, because humans simply cannot be infected with such a virus.

Thinking of this, Lin Song suddenly realized that he had only been in the Callaway Basin and had never seen a canine infected by the Boyka virus.

That's right, even the Tamu Mountain hyenas that I had fought before had never been infected. In other words, the gambling card virus is likely to not work for canines at all.

Right! It must be like this, when fighting before, the snow wolf was also wounded. At the beginning, Lin Song was worried, but the battle was tense later, and Lin Song himself actually forgot about this stubble. Now the snow wolves are still fine, which means that the snow wolves will not be infected!

Lin Song looked at it, and on the roof behind, there were about forty steppe wolves, these steppe wolves were waiting for the snow wolf's order, and the snow wolf was waiting for Lin Song's signal!

Lin Song immediately understood, and said directly: "Snow wolf, since this is the case, it depends on you, please trouble us, help us plug the gap!" ”

The snow wolf nodded directly, and immediately took the remaining steppe wolves and rushed directly to the front. Soon, news came from the front, and the snow wolf collided directly with more than forty steppe wolves, successfully blocking the living dead.

"We can hold on a little longer!" "That way, the second line of defense will hold out until ......," Wood said.

Without waiting for Wood to finish speaking, this time Lin Song said directly: "Forget it, Wood, I don't think we can expect the second line of defense to hold out for too long." We don't have that condition at all, and now it's the snow wolves who are buying us time with their lives!

Don't forget the mercenaries who fought on the outer walls, what were the results. Give the order to retreat, everyone retreats to the main building, the main building has only four exits in total, and it is obviously more realistic to hold the main building. ’

But once we retreat into the main building, we will be surrounded by the other side." Wood said.

"We've been surrounded by these living dead from the beginning." Lin Song said: "More than four hours have passed since the first shot was fired before. No less than three hundred of the living dead have been killed by us, and I don't believe they can continue to be so ferocious.

The number of the living dead is not very large, as long as we can find a way to persevere, we will definitely be able to find a way to deal with them, in this case, survival first is the first priority! ”

Hearing Lin Song say this, Wood no longer insisted, but sighed and said, "I know, in that case, let's withdraw now." ”

In the end, Wood also gave the order to retreat, and soon, the people next to him began to retreat under Wood's order, seeing that when the vast majority of people had withdrawn to the main building, the snow wolves had also fought to the last moment.

Of the more than forty steppe wolves, nearly thirty have been torn apart by those living dead, considering that the physical strength of these steppe wolves is quite strong, it is conceivable how fierce these living dead are.

Lin Song took the remaining members of the snow wolf team, as well as a few recruited members of the blue water team, and stood in the rear to shoot at the living dead at the breach of defense, while Lin Song sent a signal to the snow wolf to retreat.

The snow wolf immediately took the remaining steppe wolves and retreated to the rear. Lin Song led his men to the front and continued to shoot to meet the snow wolves.

After ten minutes, everyone finally retreated into the main building. At the same time, the living dead rushed to the gate like maggots on tarsal bones.

The main building has long since been remodeled. Except for the front door and the back door, and the two entrances on the side, all the doors and windows have been welded with thumb-thick steel bars, and the inside has been reinforced with steel pipes against the cement walls. It can be said that it is absolutely impossible for these living dead to break in if they had not gnawed all the concrete façade of the building.

As for the two side doors, Lin Song has also made arrangements, the bottom of the side doors has been poured with concrete and temporary abrasives, and a small door has been opened on the second floor.

As for the back door, Lin Song commanded the people here to make a small push-pull door, the small door was covered with spikes such as thistles, and the most ruthless thing was that Lin Song connected a generator behind the iron door, as long as the generator rotated, it could generate a voltage of thousands of volts, not to mention that the other party was a living dead, even if the other party was a superman, he had to make his hands and feet smoke.

The most important thing is the front door, the front door before is just a glass door, of course Lin Song knows very well that with the glass door, it will definitely not be able to stop the attack of those living dead, so he has already discussed with Wood, and the high voltage electricity is also connected to the main entrance, and at the same time, a layer of iron fence is added. But it didn't add too many other obstacles.

Lin Song didn't know that this would affect the stability of the front door, but Lin Song knew very well that once he entered the main building, he must leave a passage for everyone to leave here, a passage to leave here, otherwise he would be locked in a cell with no exit.

Although the living dead outside can't get in, the people inside can't get out either, so it's absolutely not okay. After all, there are more than a thousand people here!