A grotto shaped like a tomb.

Professor vernal, squatting beside a square stone, stood up slowly from the ground with his hands on his knees.

Looking at Professor vernal standing up, Schulz, standing aside, put down his arms in front of his chest, and asked with two steps.

"Any clues?"

"Of course The excavation value of the relics here is not small, which can be described as harvest. "With an excited expression on his face, Professor fner looked at Schulz and suddenly asked," have you heard the legend of mummy? "

In the face of this sudden problem, Schulz was slightly shocked, and his face gradually hung with a confused expression.

"I heard a little What's the matter? "

"The ancient Egyptians believed that a person's soul would not be destroyed after death, as long as his body would not be destroyed, he would be able to break through the earth and be reborn one day. So in order to prevent the body from rotting, Pharaohs will order their servants to empty their internal organs after their death, dry them and wrap them with salt, spices, cream, honey and sackcloth to make mummies that will not rot for thousands of years. "

The Adam's Apple moved up and down, and Schulz looked at the square stones with a strange expression and said, "you mean The meaning of these sarcophagus is to prevent the body from rotting. "

"Of course not," Professor vernal continued with a smile. "If it's for corrosion protection, it's obviously the most unwise choice to store corpses in metal containers that are easy to oxidize. We assume that the oxygen resources on Mars billions of years ago are similar to or even more abundant than those on earth, and the civilization here has the technology to drill such a huge project on the ocean floor several kilometers deep, and they can't even understand such basic chemical principles. "

"What do you think it will be here?"

"Obviously, this is a shelter."

"Shelter?"

"That's right," Professor vernal nodded, looking at Schultz, whose face was full of accidents. "They sealed themselves in these iron coffins at a time of irreparable disaster on Mars At least a billion years ago, it was an iron coffin, and then it was dormant with special technology, waiting for one day to wake up. You should have heard that the x-0172 bacteria used in the freezing dormancy technology which is very popular on earth now seems to be those brought back by the Yankees from Mars. "

Schulz nodded, and there was a sudden expression on his face.

Of course, he would not have never heard of it. He even remembered that some dormant bacteria had a lot of trouble at that time.

But now, the x-0172 bacteria has become the hot cake in people's eyes.

Especially for those suffering from terminal illness, it is a blessing. In the case that the current medical technology is not enough to cure them, they have an additional choice that they must be separated from their close relatives, but at least survive

But Schulz still doesn't understand.

If these things are sleeping pods, why do they finally annihilate in the dust of history.

"Obviously, they failed," Professor vernal continued, shrugging his shoulders as if he had guessed what Schultz was thinking. "Although they made some attempts to save themselves, their extinction was almost doomed. Their dormancy on a time scale of 100 years, in front of hundreds of millions of years, was just a dying struggle. The parent star lost the protection of magnetic field, atmosphere and even ocean Even the most developed civilization needs the soil to survive. "

Facing the unimaginable doomsday, Schulz was silent for a while.

After a long time, he asked.

"You say these Martians What might it be? I mean biologically

"I don't know, but first of all, mammals can be excluded. The gravity environment here is not easy to bone development and calcium accumulation. Even if there are mammals in the ecosystem here, their volume should not be large, and it is more difficult to develop a skull wide enough In contrast, invertebrates should have more advantages, especially arthropods, which will be larger than on earth and theoretically have larger brains to accommodate more neurons. "

"The emergence of civilization is marked by fire and the use of tools, but in essence by the ability to process and communicate information."

Professor vernal shrugged and said with a smile.

"Of course, all this is speculation. Even with all the preconditions, the birth of civilization is full of coincidence. It is only from the two samples of ants and bees that it is possible for arthropods to evolve a social system that can coordinate large populations and engage in more intensive production activities. "

As he spoke, Professor vernal's face became more excited.

Squinting eyes around, as if sitting in front of him at the moment is not a random pile of stones, but a gold mine!

“…… Everything here is very interesting. It's like a pyramid of Martian civilization. Through their excavation, we may be able to restore the reason why Mars lost its magnetic field, and what kind of rescue attempts have been made by the Martians living here at the last moment of life. Whether it is to understand the history of billions of years ago or to our own future, these precious relics are of great significance. ""If conditions permit, I want to build a semi permanent investigation station here to study these --"

Professor vernal, who is excited, and Schulz, who is confused, are describing his idea of flying in the sky. Suddenly, the shaking tremor comes from the feet of the two men again.

He reached for the stone beside him and looked at the rubble and dust from the ceiling. The expression on Professor vernal's face changed from ecstasy to horror.

"Falk?! Again? "

"We have to get out of here!"

Standing on his feet, Schulz, who was the first to react, grabbed him by the shoulder and tried to drag him away from here. However, he found that he was vomiting blood. This guy was as mad as crazy and had no intention of leaving at all.

"Wait a minute. I'll get some more samples back..."

He snatched the multi-functional spade in his hand and threw it out.

Schulz used all his strength to shake him out of his stupor.

"What are you thinking?"

"If we stay here any longer, we'll have to be specimens ourselves!"

Say, it is a burst of violent tremor again.

This time, without Schulz's warning, Professor vernal, who had been completely absorbed, realized the seriousness of the problem and rushed to the nearest exit.

Almost as soon as the two men passed through the spacious grottoes and emerged from the hole on the other side, the tunnel behind them closed like an avalanche.

Looking back, Shultz suddenly felt a strange feeling in his heart.

No, to be precise, it's intuitive.

I always think the collapse of these tunnels seems unusual.

However, the current situation does not allow him to think more.

He didn't have much choice but to rush forward with his milk strength

……

Almost at the same time, in another tunnel.

After listening to Professor Aubrey's explanation, Professor romonov touched his chin through the helmet of his spacesuit and nodded his head thoughtfully.

"So it is..."

Aubrey: do you understand

Romonov: " About? "

Hearing the uncertain statement, Professor Aubrey sighed and threw his multifunctional spade aside, leaning against the side of the rock wall, farting and sitting on the ground.

"Shetter It seems that I have spoken for nothing. "

"You don't know what you're talking about," complained professor romonov. "What is the standard Euclid space? And the interference of four-dimensional matter in three-dimensional space What does this have to do with earthquakes? "

"There is no earthquake, the road under our feet has not even changed. If my inference is correct, nothing will happen even if it is swallowed by the collapsed tunnel, but it will move from one 3D coordinate to another with the moving space."

Romonov: is this in line with the law of conservation of energy

"Conservation of energy? Of course, it's conservation, "Professor Aubrey continued with a sigh as he scribbled marks on the ground with his multifunctional spade." the state of motion of matter has not changed, neither has the energy, but the order in three-dimensional space has been disrupted. If you can't understand the standard Euclidean space, you should understand the hamster wheel, right

"Are you what we are now like hamsters on a hamster wheel?"

"It can be said," said Professor Aubrey, "that this space is circular. I'm not sure that the road under our feet is the one we have passed before."

Hearing this cycle, Professor romonov's face suddenly appeared a strange expression.

What he wants to ask is, if this is the case, is it necessary to move on?

However, just when he wanted to ask, the earth suddenly shook violently. Professor Aubrey stood up from the ground, looked at the rubble from the ceiling and the tunnel that might collapse at any time, and ran away.

“WTF?! Isn't it every two hours? How many minutes is it? How come again? "

Romonov ran in front of him with a staggering pace, shouting at the top of his voice.

"Didn't you say it would be ok if you were swallowed by that collapsed tunnel?"

"I said it!"

"What are you doing?!"

"Theory is one thing, experiment is another! What's more, I'm just guessing. Do you dare to take your own life to try!? Shetter, stop talking nonsense and run

Small stones and dust kept falling from the top of the cave, hitting them on their heads and shoulders.

After the collapse of the tunnel more and more close, legs and feet are not very convenient for the two people, their faces coincidentally showed a desperate expression.

However, just at this time, there is a light in front of us.At the moment when he found the light, the expression on Professor Aubrey's face was a little sluggish, and despair turned into ecstasy.

"Exit! The front is the exit! Come on! "

There is not so much left.

Although no clues could be found about extraterrestrial civilization, at least they survived. Perhaps Congress will be disappointed, but Aubrey believes that if he dies in it, he will cause more trouble to his country and the people of the world.

And as long as he's alive, it's all right!

"I will never explore such a place again! Keke - "

finally broke through the hopeless darkness. Professor Aubrey, who ran out of the tunnel, propped his right hand on the stone pillar at the entrance of the cave, gasped desperately for breath, which was relieved for a while.

However, in the moment when he raised his head, the whole person was slightly stunned.

It's not just them.

Beside the rover, including Wang Peng and fan Tong, the two Chinese who had been separated from them before, as well as the English archaeologist and the German mathematician, are also here.

Besides academician Lu

Seeing Professor Aubrey running out of the cave, Wang Peng stepped forward a few steps, reached out and grabbed his shoulder. His eyes were bloodshot and fixed on his eyes.

The creepy feeling made him shudder.

Professor Aubrey, who was staring at him, felt that he had forgotten how to breathe for a while.

"What about the land boat! Where is he?! "

"How do I know?" Trembling, Professor Aubrey replied, "I'm not his bodyguard. Besides, he's with you?!"

“……”

Although he didn't trust the American's words, Wang Peng finally let Professor Aubrey go.

He turned his eyes to the shaking hole. His fist was tightly held. Suddenly, a decisive light flashed in his eyes.

"I'll go to academician Lu."

Like watching a madman, fan Tong stared at him with wide eyes.

"Are you crazy?! As far as the scale of the earthquake is concerned, the whole mountain range may suffer! "

"Then you go back first --"

before you finish, all the people standing at the entrance of the cave were suddenly shaken by the tremor from the bottom of their feet. They were stumbling. The feeling of shaking came from all directions. Even the stone pillar standing at the entrance of the cave began to fall to one side.

Seeing this scene, everyone's face changed, and they rushed madly to the nearby Mars rover.

"Come on! Drive

"Wang Peng hasn't come up yet!"

"Not so much! He's going to die by himself. Are you going to drag everyone to die with him? "

Listening to the roar from the communication channel, fan Tong bit his teeth and looked back at the passengers in the car.

No one wants to die, including himself.

Especially the dead are not clear.

Finally, he made up his mind and said sorry. He grabbed two oxygen tanks and threw them out of the door. Then he started the rover at the fastest speed in his life.

There's no point in staying here other than burying Martians who died billions of years ago.

Dodging the rocks falling from the ridge, fan Tong used his milk strength to step on the accelerator to the bottom, and ran all the way like a life, and finally rushed out of the pass when he came.

And almost at the moment when they just escaped, a huge rock wall about ten meters long, separated from the towering ridge, crashed into the pass they had passed before in a piece of dust.

If it is a second later, they may have been left in it forever

The rolling gravel rises with the dust, not to mention through the window. I'm afraid it can be seen clearly even when I stand at the height of the satellite overlooking.

All the way in the desert, I felt the aftershock coming from under the cushion, looked back at the people behind me, and my face showed the expression of aftershock.

"Grass..."

A fierce blow hit the steering wheel, gradually slowing down the speed of fan Tong, suddenly hit his forehead on it, shoulder twitch like shaking.

Schultz clapped him silently on the shoulder as a sign of comfort.

Everyone in the car was silent, and there was not a word of communication on the way back.

only professor Aubrey whispered "it's like the entrance to hell". After getting no response, he also lowered his head in silence.

June 10th.

This day.

Mars has had the most serious earthquake since human observation. Even the Mars scientific research station several kilometers away can clearly feel the shaking of the earth.

And on the same day.

Mars lost two excellent team members