Everyone ran forward like a frightened rabbit. He Gang deliberately slowed down his pace. He suddenly felt the May 4th pistol from his waist and turned around. He banged two shots into the invisible void and darkness. The bullet shell jingled and fell to the bottom of the cave. There was no monster roar or response. Even the sound of bullets hitting the wall did not appear!

It was as if the bullet had hit the thick cotton.

"There's no way!" the geologist running in front suddenly stopped and shouted at the team door behind him.

Everyone gathered forward along the three or four meter wide cave. Only He Gang alertly guarded behind him. It seemed that there were still gravel rolling on the ground in the depths of the seven twists and turns cave that had just come. Something was keeping up, but the speed was slower

Like an animal waiting for hunting, since it has forced its prey to a dead corner, it is no longer in a hurry

Indeed, the cave suddenly had an end. There was a dead cave wall in front, and there was no fork on the left and right. Hao Zhi looked down and saw that there was an exit at the end of the cave!

The cave is not over, but suddenly changes its direction at this position. The original cave slowly up and down suddenly becomes a 90 degree right angle down, that is, at the end of the cave, there is a stone well!

A round stone well with a diameter of four meters! Directly above, there is a vent extending upward. The huge air flow passes through Hao Zhi's position and rushes directly to the vent.

Strange to say, as long as you stand outside the wellhead, you can hardly feel any wind, but once the probe passes, you will immediately feel an upward lift, which is so strong that you can't stand stably.

I wonder if there will be water at the bottom? Hao Zhi thought to himself, seeing that the geologist skillfully grabbed a stone from the ground, threw it into the well, and then listened

There was no sound of water. What followed was the whistling wind. The strong air flow from nowhere poured into the stone well, forming an upward strong wind.

"I don't know how deep it is. It's estimated that nine times out of ten you will fall!" Du Danhua whispered.

"But now it's too late to tie the rope and slide down! The ghost behind will catch up soon!" the geologist urged anxiously.

"There is no way out before, but there are pursuers after. This is not a dead end!" pointed Professor Hou complained strangely.

"If you didn't fall to death, tell us how deep it is below!" a trace of evil spirit flashed in the eyes of the thinner geologist.

"What?" the thin and small Du Danhua didn't hear what he said clearly. She just felt that the collar was grabbed by the guy and pushed hard into the stone well. She screamed and disappeared at the dark bottom of the well. A strong airflow blew up again. The whistling wind made the human skull cold.

"You're killing!" yelled the professor angrily.

"Only in this way can we try. Can we stand here and wait to die?" the geologist retorted discontentedly. "This ghost cave may have some monsters. It's better to fight than wait to feed it!"

"I'll take you to the military court!" He Gang shouted angrily.

"Sorry, I'm not a soldier. I want to go to the civil court, but you'd better catch me alive!"

"I don't need to catch you alive. I'll shoot you here!" He Gang shouted angrily, pointing at him.

"You shoot! Everyone can't live anyway!" the guy's legs trembled and his mouth was still very hard.

Before the quarrel was over, I heard Du Danhua's shrill cry from far to near, like a train driving out of a deep tunnel. Suddenly, with a bang, a figure was "vomited" out of the stone well!

The thin female scientist "jumped" out again! He drew an arc and fell to the edge of the cave. Song Xiaojia moved quickly, picked her up, gently caught her and put her on the ground.

"What's the matter? Why did you fly back? Is there no gravity in this hole?" the geologist asked in confusion.

Du Danhua sat on the ground in shock and gasped, "no... It's not that there is no gravity. It's not a stone well at all, but a wind tunnel!"

"Wind tunnel?" Hao Zhili immediately understood that the air flow under the cave was too strong and poured back into the stone cave, forming a structure similar to the artificial wind tunnel in the aircraft experiment. No one can jump down and die, but he will never reach the bottom of the cave.

Zhu Wei is an engineer. He stretched out his hand and tried on the air outlet. He was blown up involuntarily: "According to this wind force estimation, unless you can completely keep upright in the process of jumping, there are only two results - either a light-weight girl is blown out again by the wind, or a man of similar mass falls in half and floats in the air. He can't come up or go down."

"I'll come!" Hao zhithief smiled and stepped forward, "let you guys be lazy. Now you know you regret it?"

He made a goodbye gesture to everyone, then jumped and disappeared into the dark cave. After a while, he heard him shouting at the bottom of the cave. If he couldn't fall, follow my way!

"That's right!" Professor Naduo patted his thigh. "This guy packed a bag of diamonds. Such a heavy thing just became ballast, so he could fall to the bottom of the cave safely! Ordinary people's weight is not enough to resist the wind. It's strange not to be blown back!"

So they quickly followed suit, emptied their backpacks and loaded them with large stones. If it was too late to load the stones, they simply held them together to increase their weight, and then jumped into the wind tunnel one by one.

Song Xiaojia grabbed a large bag of stones and pulled Du Danhua with his other hand. They jumped into the wind tunnel together. They felt light and fluttering. The whistling wind crossed their ears like ghosts crying and wolves howling. At first, the wind was weak and the falling speed was very fast. In the middle, a strong air flow caught them like a giant palm and fell slowly until they fell out of the bottom of the wind tunnel, Only then did they regain their daily gravity. As soon as the two girls fell, they sat on the ground.

On the side, Zhu Wei, who was silent, quickly reached out and pulled them aside to prevent them from being hurt by the people who came down from behind.

Finally, I counted the number of people. In addition to Professor Lynch and Ma Junjie who were swallowed by the strange shadow, pointed mouth Hou disappeared. I don't know whether he was caught up by the dark shadow or stuck in the middle of the wind tunnel because he was too thin.

"There's no way. Under such harsh conditions, we can't go to the rescue for the time being. In fact, even our way back has been broken. I'm afraid we have to find another new exit to think of this hole!" He Gang calmly looked up at the bottom of the wind tunnel and wondered where the huge air flow gathered. There was no strong wind at the bottom of the hole, It even feels a little muggy.

The professor sighed, turned and swept around with a flashlight, trying to find the next way to go, but suddenly shouted, "look!"

People were attracted by his cry and took photos with their flashlights. Only then did they give a full picture of the scene in front of them

Oh, my God! A vast underground plain!

As if a concentric circle came out under the inner layer of the earth, no one thought that the end of this narrow cave was so vast