Doomsday Rebirth: The heroine comes back with the system

More than ten helicopters arrived above the second group of collapses.

Giant searchlights the size of bowls shone downward, illuminating the collapsed area that had been shattered into large stone walls and piles of rubble with extreme clarity.

The collapse stretched for several kilometers, and the rubble was crowded with swarms of zombies.

As the zombies surged and ran, the rubble and collapsed stone walls shook horribly and could collapse again at any time.

Bai Jinghe: "According to the location, they are right below."

Yin An glanced at the endless zombie swarm that stretched for several kilometers nearby, and looked at the building structure expert and search and rescue expert beside him:

"Thank you for your hard work, both of you."

The two of them immediately observed the situation below.

After a moment, they all looked at Yin An with serious expressions:

"The difficulty level is too high. There are too many zombies. It is extremely difficult to drain them away."

Yin An's eyes darkened a little: "Is there no solution at all?"

"It's not that there is no way, but the success rate is extremely low."

"Go ahead, give it a try no matter how low it goes."

"Okay, does the base commander have a pen and paper?"

Yin An took out paper and pen from the space and handed them to the two of them.

Soon, more helicopters flew over.

Under the guidance of professionals, helicopters began to fly in all directions.

The first step in launching a rescue operation - large-scale zombie drainage.

This time the drainage range is very large, almost leading away all the zombies in this area prone to collapse.

Helicopters and drones form an aerial drainage network.

They hung large amounts of fresh pork and repeatedly dispersed batches to drain the zombies.

The second step of the rescue operation is to dig a buffer tunnel through the basin over a large area over a long distance.

Reconstruct the lowest point of the collapsed area, let the surrounding rubble and soil tilt towards the basin, gather the surrounding zombies, and reduce the pressure on the trapped area.

Digging a large basin in the collapse area is a very difficult operation, and any carelessness may accelerate the arrival of secondary collapse.

But Yin An chose to gamble.

A large number of people with special abilities were hanging under the helicopter, hacking and killing zombies to avoid the violent vibration caused by landing.

At the same time, civil engineering experts cooperated to build a temporary defense wall.

Another group of psychics quickly landed and dug up stones.

Half a day later, the area above where the trapped people were was finally successfully surrounded, and all the zombies were led away and killed.

All the superpowers launched the third step of the rescue operation - digging.

They surrounded the rubble of the trapped people and quickly moved stones.

Many people's hands were bleeding.

But no one dared to stop for a moment.

Each of them was doing their best to rescue their companions.

But by the time the sky gradually turned white, only one-third of the pile of stones had been moved away.

Yin An, who was so tired that his whole body ached, glanced at his companions who were also very tired, and was just about to tell them to hold on a little longer.

The ground began to shake violently!

The crazy roars of zombies came from underground.

Everyone was shocked.

There are actually a large number of zombies in this collapsed ground? !

Yin An immediately opened his bracelet: "Ding Zhaoshu, there is a wave of zombies below, how are you doing now?"

In the bracelet, Ding Zhaoshu's voice was urgent and hoarse:

"They are right next to us, base commander. It seems that there is a huge space and zombie tide in this underground place that is beyond our imagination. They are trying to break through the pile of rocks to attack us!"

At the same time, on the ground, waves of zombies from all directions began to pour in here.

Yin An took out a telescope and looked, only to see that each zombie tide was followed by a zombie king.

With the leadership of the Zombie King, it is difficult for them to be diverted by human intervention.

The Zombie King’s appeal is ahead of everything else.

Yin An's eyes gradually turned cold: "Call Shi Yan and Bu Fu over, the people from Teams 1, 2 and 3 will hold off the zombie tide, and the others will continue digging!"

"Yes, base commander!"

Everyone speeded up. At the same time, Ding Zhaoshu's anxious voice came from the bracelet:

"Base commander, the zombie tide has broken through the stone pile, and we are fighting hard?"

“How many are there?”

"Base Commander, there's no end in sight!"

The ground shook violently.

Immediately afterwards, a secondary collapse occurred!

Everyone ran out quickly, and a small number of people who failed to escape were

"There are deep underground buildings here, perhaps several hundred meters deep!"

Following the rescue expert's words, Yin An's heart sank.

But she made a quick judgment and first contacted Yan Mo to inquire about the terrain structure of C1 City. After confirming that this huge underground building of unknown depth was not built by the Midnight Base, Yin An could only think of one possibility.

This is the secret underground zombie pool that RT United Nations once built to raise zombies.

"Base Commander, they are coming!"

Yin An looked up and saw a helicopter slowly landing.

There were banquets and ambush.

Qi Ye also walked down at the same time.

Qi Ye, who was going to the division, was surprised to suddenly appear here, but Yin An didn't have time to ask more questions.

She looked at Bai Jinghe and said, "Notify everyone to disperse and search for the exit of the underground building."

"Base Commander, do you mean this is an underground building?"

"The base commander is right. There is a high possibility that there is a huge underground building here."

Bai Jinghe understood: "I'll take people to look for it."

He quickly summoned the psychics to search for an exit in all directions.

At this moment, a large number of zombies have become much more well-behaved under Shi Yan's control, but after all, one zombie king cannot fight against so many zombie kings, so it can only play a alleviating role.

"I can take someone into the crack in the ground and dig in."

Qi Ye's voice suddenly came from behind.

Yin An turned around and met his dark eyes.

"But the distance is limited, and we need to find the right direction."

The rescue expert at the side came over immediately and said, "I know there is a weak spot. Although there is a large stone wall stuck outside, there must be space underneath, enough to accommodate two people!"

"Take us there."

"it is good!"

Several people walked quickly towards a ruin.

"That's it!"

Following the direction he pointed, Yin An looked and saw an entire collapsed wall of a high-rise building surrounded by many stone pillars and rubble.

"Take me down."

Yin An looked at Qi Ye.

"Base Commander!"

Kong Nianchen rushed over and said, "It must be very dangerous down there, let me go!"

"This is an order."

Yin An's tone became colder. She looked at Qi Ye with serious eyes: "Take me down. I have the space and experience."

In her previous life, she had encountered two floor collapses. Although they were not as serious as this time, she still had some valuable experience of escaping death.

Qi Ye did not refuse, he just hugged her and said in a low and hoarse voice: "Ready."

Yin An nodded.

The next moment, black fog filled the air.

Dark ability activated.

The two of them appeared in the crevice.