Just as I was thinking, the heads of the two zombies next to me were still opening and closing, trying to bite us.

I stared coldly at the two zombies on the ground with only their heads left.

It's sad.

Their bodies have been blown to pieces, but as long as their heads are not damaged, they still want to eat human flesh.

Drawing my dagger and leaning over slightly, I stabbed the dagger into the zombie's mouth.

It howled, and then stopped moving.

Seeing this, Wang Yi also took out a dagger and completely killed the other zombie with only a head left.

"These zombies are so strange, just like Wang Guangyuan and the others we met in the 'School of Despair', the surface of the skin is like it has been strengthened, invulnerable, and it can only be killed if it is destroyed from the inside of the body." Wang Yi looked down at the zombie head on the ground and muttered to himself.

"When you say that, it seems to be true. Hey, no, no, shouldn't we think about what these keys are all about? Zhang Qiang said, looking towards my left hand.

When I heard this, I spread my hand, and the keys inside the five corpses appeared in front of everyone.

Zhao Qiqi glanced at the key in my hand: "I'm thinking." Could it be that this cave is not as simple as we imagined, and I think it has other mechanisms, or secret passages or something? ”

My eyes sparkled: "It's very likely." Or, to be on the safe side, let's search again before leaving! ”

When everyone heard this, they all nodded.

The crowd began to search all over the cave.

For some reason, I suddenly had a strong premonition in my heart.

I don't know what it is, but there is an inexplicable feeling that it pulls me back to the location of the first giant zombie that Zhang Qiang and I found before.

Looking up, I squinted at the stone wall in front of me.

At this moment, a large groove appeared in the wall, which was exactly the same shape as the zombie just now.

It is also unknown who embedded the zombie in the stone.

But this ...... And for what?

Just as I was thinking about it, I accidentally caught a glimpse of a small, metallic hole in the groove that the zombie had made.

The hole looked like a keyhole.

Don't......

Thinking of a possibility, I immediately turned around with some excitement: "Hurry up and come and see, here!" ”

"What's wrong?"

"What did you find?" When Zhang Qiang, Wang Yi and others heard this, they quickly walked over.

I pointed to the small hole and turned my head to look at Zhang Qiang: "Don't you think this small hole looks like a keyhole?" ”

"Let me take a look!" When Zhang Qiang heard this, he immediately took two steps forward.

He tilted his head and looked at it for a few seconds, then snapped his fingers: "That's right! This is the keyhole. ”

As he spoke, Zhang Qiang turned his head to look at me: "Gao Wei, I think you should try all the six keys from the corpse and the six keys we found in the wooden box just now to see if you can open them?" ”

I smiled, "I think so too." ”

While speaking, Zhang Qiang had already turned sideways and gave up his position.

I walked over to the keyhole again and inserted the keys I had found into the keyhole one by one.

Just as I was trying the fourth, I finally heard a click.

Immediately after, the stone wall in front of him began to shake slightly.

Seeing this, everyone hurriedly took a few steps back.

I quickly withdrew the key and retreated into the crowd.

After a few seconds, the stone wall in front of us actually opened from the middle of the keyhole to the left and right, revealing a gap of about one meter.

It's dark inside, and I can't see the specifics clearly.

"There's a cave in there?" Seeing this, Du Deming's mouth opened wide in surprise.

"No wonder, I said how could there be nothing in this cave. It turns out that there is a hole in the cave! Zhang Qiang probed inside and said with a sigh.

"That'...... Shall we go in and have a look? I asked, licking my somewhat dry lips.

"It's all here, I'm definitely going to go in and have a look. And aren't you still looking for the last potion recipe fragment in the Forest of No Return? Sammy said, her eyes lit up with excitement.

It seems that this girl is also quite adventurous!

Looking down at the key that had been unlocked.

It's the one that comes in the wooden box.

And what about the other five?

What are they used for?

After thinking about it, I clutched the key in my hand.

Looking up at the crowd: "In that case, then let's go in and have a look!" But it's still the same sentence, I don't know what dangers are inside, everyone must be cautious and pay attention to safety! If something happens, be sure to tell someone else! ”

"Understood!"

They smiled at me and replied.

Although it has been decided to enter this mysterious cave within a hole to find out.

However, to be on the safe side, everyone checked their equipment in place and refilled their guns.

Just as we were about to get up and enter the cave inside, Situ Cao suddenly stopped us.

"Wait a minute, everyone! It occurred to me that it was time to inject the antidote. As she spoke, she had already taken out the syringe and needle from her backpack.

I was stunned.

"Really, I almost forgot about it. Then let's inject it before we go in! ”

In this way, with the help of Situ Cao, several of us were injected with antidote potion.

After the injection, Situ Cao retrieved the sterilized needle and needle into the backpack.

"Let's go! If you don't go, the sun will go down. We strive to end today's exploration before sunset. ”

With that, I held the lamp and was the first to step inside.

The others looked at each other and walked in.

The space inside was even more spacious than I expected.

It looks like it's at least more than 200 square meters.

The temperature inside the cave is very low, much lower than the cave outside.

As soon as he walked in, a cold aura rushed from all directions, instantly hitting every corner of his body.

Everyone subconsciously shuddered.

The six of them used their own lamps to shine around the cave, trying to see the whole place.

However, when we looked around, we realized that there was nothing else here except that it was a little more spacious.

"Here...... It doesn't seem like anything, right? Hey, I'm so excited just now, but nothing turned out. Zhang Qiang sighed, and his tone seemed to be a little disappointed.

I looked at him with some amusement: "Is it difficult, do you still hope to make a monster?" When the time comes, you'll have to cry again! ”

"Ahem. What a cry, I'm not a zombie, no! When did I cry? When Zhang Qiang heard this, he immediately glared at me angrily.

I smiled and ignored Zhang Qiang.

After a few minutes or so, we searched the cavern inside, but found nothing unusual.

"Since we haven't found out, let's go out first! The sun is about to go down, so go outside and set up your tent first. Wang Yi saw that there was no suspicion, so he proposed.

I was about to nod.

But at that moment, the light of the lamp inadvertently hit the corner of the upper left corner of the cave.

Over there.

A pair of green eyes are staring at us.