Li Ling faintly could see a silver-white iron door from behind the dense walking corpses, in order not to startle the snakes, Li Ling quickly disappeared behind a pile of dead corpses, and those walking corpses stopped in place and shook their heads after losing their traces of Li Ling.

Stepping back to Tranquility and Mandala, Li Ling looked behind him, turned his head, and said to Mandala and Tranquility in an extremely subtle voice: "There is an iron door ahead, which must lead to the deeper part of this cave. ”

"Then we'll go over now." Mandala's eyes lit up, and when he heard an iron door, he immediately relaxed.

"However, this iron gate is blocked by a large number of walking corpses, and in order to pass through there, you must destroy all the walking corpses at the door." Li Ling grabbed the mandala road that was about to rush out.

Mandala also felt that he was too excited, and said calmly: "How many walking corpses are there at the door?" ”

"As far as I can see, there are about a dozen." Li Ling looked at the mandala road.

"There are more than a dozen, the number is not huge, and it shouldn't be difficult to deal with it." Mandala looked into the darkness and said with an unusually murderous aura.

"Where would that be behind the door? Will there be more walking corpses waiting for us? Quiet asked about this suddenly.

"It's not impossible. So, be extra careful when opening the door. Li Ling replied thoughtfully.

"In addition to this passage, there is another passage, if this door is opened and the passage is a dead end, we will immediately turn back to the passage on the right." Mandala said as he pulled out the Desert Eagle's reload, and pulled out a silencer device that was attached to the barrel of the Desert Eagle's gun.

"You even brought a silencer. It's really well prepared! Li Ling opened his mouth and stammered, after all, who would have thought that there would be a current situation at that time.

"Sorry, but I've always had this silencer with me." The mandala inserted the Desert Eagle with the silencer in his pouch at his waist.

Li Ling shrugged helplessly, saying that he could use a gun for a mandala, but he couldn't use a gun, expressing that he was very aggrieved.

"When I shot the dozen or so walking corpses for a while, I didn't notice the dead corners behind me, and I was afraid that there were other corners hiding the walking corpses. When the time comes, there will be a gap behind you, and the task will be handed over to you. "Mandala is very thoughtful.

"Yes. It's good. Li Ling and Jing Jing responded, and the three of them formed a triangular battle formation.

The mandala was moving forward, and Li Ling and Jing Jing had their backs to the mandala, and the two looked at the left and right angles, just in case. However, due to the limited light of the quiet flashlight and the fact that she is a weak girl, Li Ling needs to take care of it.

After the three of them walked out of the corpse pile, the walking corpses that were dangling at the door turned their heads to this side, as if they smelled the smell of fresh flesh and blood, and seemed to be extremely excited.

Mandala's eyes were extremely sharp, and in the dark, he flicked the Desert Eagle and pulled the trigger, the silenced Desert Eagle's voice was unusually slight, and a bullet directly exploded the head of the walking corpse rushing towards him like a watermelon.

With the first one, there will be a second, and the third, and the mandala has two more shots, both of which explode the heads of the walking corpses with great accuracy.

Probably due to the sound of the barrel vibrating, and the slight sound of gunfire, it caused the walking corpses lurking in the darkness around them, and some of the dead bodies that were lying on the ground actually started fighting.

"Wouldn't it, among these dead bodies, there are walking corpses pretending to be dead?" Li Ling felt a hint of incredibleness and inexplicability.

Looking at the walking corpses that got up one by one, the number was constantly increasing dramatically, even in front of Li Ling, there were three walking corpses with broken arms and legs, moving towards him, and there were two walking corpses lying on the ground on the quiet side and began to squirm.

Li Ling held the handle of the knife, his body moved, shuttled back and forth between the three walking corpses, using the knife technique was extremely simple and fast, instantly chopped off the heads of the three walking corpses, and returned to Quiet's side, just right, the two walking corpses in front of Quiet also just stood up, staggering towards Quiet.

Li Ling flashed again, his hand rose and fell, and the two walking corpses that were approaching silence were instantly blasted by Li Ling, and they both knelt down and fell to the ground and died.

Li Ling grabbed the quiet hand, and in the pile of corpses in front of him, there were a large number of walking corpses, pulling out the upper corpses from the corpse pile, one by one, like a devil drilled out of the pile of dead corpses, densely and gradually forming a huge army of walking corpses.

Looking at the huge number of walking corpses, after sealing the entrance of the cave, Li Ling simply felt a sense of tragedy.

"I'll go, I'm happy now." Li Ling sighed at the rapidly increasing number of walking corpses in front of him, and was indescribably depressed.

After changing the magazine, the mandala quickly disposed of the remaining walking corpses, and the iron gate was in front of him.

"What's the situation?" Mandala was so focused on shooting the walking corpses in front of him that he didn't have time to care about his back, and at this moment he turned to look at the pile of corpses, a large group of almost dozens of walking corpses moved towards this side.

"According to speculation, it should be those walking corpses, burrowing into those dead corpses, getting something for nothing every day, sitting and eating nothing." Li Ling was still in the mood to joke at this time, but unfortunately, no one could laugh.

"Help keep those walking corpses at bay, and I'll open this iron door as soon as possible." The mandala grabbed the doorknob and pulled sharply, but the iron door was too heavy, and the strength of a person was limited at all.

And the walking corpses that moved towards this direction were only less than five meters away from the three of them.

"Okay, no." Li Ling was always focused on the walking corpses moving towards the three of them, and he didn't have time to care about whether the door behind him was open or not.

"The door is too heavy and it's pulling." The mandala is a different race, and the strength is very strong, and even the mandala said that the door is heavy, which shows how strong the defense of this iron door is.

The two walking corpses closest stretched out their claws and pounced towards Li Ling, Li Ling saw the head of the walking corpse, and stabbed it violently, as fast as lightning, half of the head of the walking corpse was pierced by Li Ling's knife A huge hole, and then fell to the ground.

Li Ling held the saber full of brains, and he felt disgusted, but there was no way, and he didn't dare to use the gun, after all, his gun was not silenced, and it would attract more walking corpses.

"Brother Li Ling, give you this." Quiet held a black cylinder in her hand, apparently a silencer.

When Li Ling saw the silencer, he immediately breathed a sigh of relief, cut through his shirt with a knife full of brains, took the cloth, wiped the knife clean, wiped it into the scabbard hanging on his waist, pulled out the desert eagle on his waist, installed the silencer, and smiled in high spirits.

"You're finished." Li Ling fired two shots in a row, and the two walking corpses that rushed to the front were instantly shot in the head, their brains exploded to the ground, and they fell down.

Then, there were more walking corpses, rushing over, and even some walking corpses, after the two walking corpses fell to the ground, actually leaned down and began to devour the internal organs of the two walking corpses, and the other walking corpses stepped over the two walking corpses and crawled towards Li Ling and the three of them.

Although the walking corpse moves slowly, the space here is too narrow, which just creates a good environment for the walking corpse to catch turtles in an urn.

Therefore, the current situation of the three of them is not optimistic, and they are completely confined in a small space.

Li Ling's sand eagle shot faster and faster, and the number of walking corpses in front of him became more and more huge, and even Li Ling had changed three magazines and killed nearly twenty walking corpses, but the number of walking corpses only increased.

This also led to Li Ling, while using the sand eagle, he also pulled out the saber again, the gun and the knife played an effect at the same time, the gun shot at the walking corpse ten meters away, and the knife slashed and killed the walking corpse that rushed very close.

Three minutes later, a large pile of corpses had already piled up in front of Li Ling.

"Is it on?" Li Ling urged again.

Snorted, the iron door was finally pulled open by a brute force of the mandala, there was a bright light behind the door, due to the urgency, the walking corpses in front of them kept rushing over, the three of them did not care what was going on behind the door, they got into the back of the door, Li Ling shot two shots accurately again, the two walking corpses running in front of the ground, and suddenly fell to the ground, Li Ling filled with a kick of true qi, kicked on the doorknob, only to hear a bang, the iron door closed, and there was a sound of knocking the door outside.

Whew...... Li Ling gasped slightly, his spirit just now was simply highly nervous, and he didn't dare to relax at all, after all, he couldn't be bitten in battle, so while fighting, Li Ling could be said to have no flaws left in the walking corpse door, which was more focused than usual when fighting with other things, after all, fighting with other things is allowed to be injured.

Li Ling leaned against the iron door, gasping for breath, and then remembered that the three of them had arrived at a mysterious and huge place that resembled a scientific research studio.

This place, with its bright lights and a large spatial scope, can almost catch up with the size of three football fields, and the most amazing thing in this large space is that there is not a single corpse in the empty space.

But there are a lot of chemical and physical facilities here, such as various tables, chairs, and petri dishes, test tubes, and some scattered materials that are still on the table, and some, huge petri dishes, and some liquid in them, but due to age, some scale has grown in them.

"Here?" Li Ling said in surprise.

"This is supposed to be the research base of the Oriental people back then." The mandala looked around carefully.

"It's a huge underground project. Are you sure there are no walking corpses here? After all those things, the silence seemed to be nervous, leaning on the railing, looking at the environment below, rows of rusted iron tables and chairs, and complicated scientific equipment.

"Doesn't it look like it on the surface?" Li Ling glanced around and said.

"Let's look and see if there's a passage to the underground research institute." Mandala's mind was all about the underground research institute and he headed down the stairs.