\"Professor Fei, where do you want to go?\" the old beggar asked.

He didn't know when he got here, because all the previous information was discarded.

Professor Fei said: "Why is there no way? You follow me!"

Speaking of Professor Fei, he walked to the edge of the cliff, and there was an abyss below.

\"Be careful, professor!\" everyone shouted.

But Professor Fei still didn't listen. He stood there, closed his eyes and stretched out his horns, only to find that his feet were in the air. Professor Fei was already standing outside the cliff in mid-air.

Everyone was surprised, how could this be? It's too mysterious.

\"Professor Fei, this...\" The old beggar was also surprised.

Professor Fei smiled and said: \"It is true. It is recorded in the scriptures that there is a stone bridge, but here is an iron bridge. The iron bridge leads to the left and right sides of the original crossroads. Dangerous!\"

\"So it is!\" The old beggar nodded.

Li Jian asked: "But why don't you see the stone bridge?"

Professor Fei said: "Don't worry, you still need a little weight, come on, big man, come up!"

Caldera went up without hesitation, and indeed there was a stone under his feet, and the stone slowly appeared until it reached the opposite mountain.

\"It's amazing, how did it happen?\" Others can't help but sigh!

Professor Fei said: "From here, we can see that our destination is a prehistoric civilization!"

\"This……\"

When everyone saw Professor Fei's excitement, they also became excited. Everyone went to the stone bridge, which was not very wide, only two or three meters.

Looking at the vast abyss below, their hearts were raised in their throats, and they walked carefully one by one.

Those experts talked a lot.

\"Really a prehistoric civilization?\"

\"I believe Professor Fei is right!\"

\"It seems that there is no record of these in the scriptures, I also read the scriptures, but there are many can not understand!\"

\"These things you don't understand are the most useful!\"

\"Professor Fei can understand!\"

\"Yes, Professor Fei has a lot of knowledge, you don't know that he was a student of Xiao Lao!\"

\"No way? Hidden deep!\"

Zhang Feng at this time was also very confused, is it really a prehistoric civilization? Can you get a lot of high-tech things from there?

If this is the case, it would be exciting to think about it.

Seeing Erha walking calmly, Zhang Feng was relieved that there was no danger around him.

Especially the air here is very good, because the amount of oxygen is very high, the trees behind will grow so tall. Wouldn't it be great if you could come here to exercise every day?

Haha, Zhang Feng unexpectedly had such an idea. This is a place of adventure, but he wants to come here to exercise, weird idea.

It’s not far to see the opposite mountain up close. Now it’s very far to walk past. It takes a long time to walk. The bridge is empty.

\"Actually, I want to study the structure of this bridge. It's amazing. If this is used in our country, hehe, it would be amazing!\" An expert said excitedly.

\"Think too much, how do you study it?\" Another said: \"I think the material on this bridge is unusual!\"

\"If there is a chance to come in the future, I will definitely come to study!\"

\"come on……\"

...

\"Is there a hidden mountain in front?\"

They walked for half an hour before they could clearly see the opposite mountain, which was huge.

No one answered him, because everyone was looking at this mountain.

\"Abudu, is this mountain the same as you saw the hidden mountain?\" Zhang Feng asked. .

Abu Du said: "How to say it, the same, but also different. At that time, we also passed an iron bridge. There were a lot of bones on the iron bridge. And when we approached the hidden mountain, there were a lot of huge bugs crawling down from the mountain. Bugs can’t be killed by bullets, but they move very slowly...\"

Howl...

Erha suddenly howled.

\"Be careful...\" Zhang Feng shouted.

I saw a lot of bugs like Abudu said that suddenly appeared on the mountain and climbed down. Just when everyone was about to shoot, Zhang Feng shouted again: "Don't shoot! Don't move."

The worm is very big, with black fangs and squirming around.

Everyone is nervous.

\"Erha, don't make a sound...\"

When the crawling insects approached the stone bridge, they suddenly turned to both sides, and countless insects crawled down, all to one side.

\"What is going on?\" Li Jian asked.

Professor Fei said: \"We are on the right path. These bugs think we are the masters here, because there is a master to take the right way!\"

\"Master? Master of the tomb?\"

\"possible!\"

\"How can it be possible? Isn't this a tomb?\"

Professor Fei said: "What we know is only the two roads taken by the expedition before, as well as the two paths taken by Abu, both sides are tombs, so it is very likely that the one going in from here is not the tomb!"

\"what is that?\"

\"It is very likely to be the residence of a prehistoric civilization!\"

\"how come?\"

Professor Fei said: "Also, look at all the insects on this hidden mountain, here is the insect den, the whole mountain is there!"

\"That's it! In the records of previous expeditions, there are descriptions of encountering big bugs, and that should be it.\"

Professor Fei said: "There is a big hole at the end of the bridge, let's go over quickly!"

Everyone just passed, but they were scared when they looked up at the mountain, worried that they would jump down and eat people.

Zhang Feng is very puzzled. Could it be that this time is a surprise? Just kidding, there are so many prepared, so many weapons are useless, so you can come many times in the future?

I thought I was going to die here this time, so boring!

No, there are still many roads inside, but don't be too optimistic and underestimate the enemy.

Zhang Feng stood at the entrance of the cave, it was dark inside, there was no unusual smell, and Erha was also very stable.

\"Is it okay inside, Erha?\" Zhang Feng asked.

Huh...

Erha whispered.

Zhang Feng said: "It's okay! Let's go."

Erha walked in front, Zhang Feng followed, Caldera was also nearby, and a group of people followed closely.

Everyone consciously turned on the flashlight, and there were many murals in the cave.

The old beggar said loudly: "Don't move around, don't touch anything, don't touch the walls!"

In the course of expeditions in the past, most of the dangers were death and chaos.

\"Guan Shan, tell the people behind, let people stare at the entrance of the cave!\" said Yan Wang.

\"Yes!\" Xu Guanshan took someone to the back.

Because there are always so many people who can't control their curiosity.

\"The disobedient, kill!\" Zhang Feng came with such a sentence.

\"Yes!\"

Xu Guanshan responded, listening to what both of them said. He took the person to the entrance of the cave behind, holding a piece of paper and writing: Don’t move anything, follow the steps in front, and kill the offender!

The critical moment requires critical means, otherwise it will kill everyone.

The old beggar acquiesced to this approach, because the old beggar himself had to listen to them if all the security tasks were given to them.