"Who lit the candle and blew the lamp? Sounds like a pretty powerful thing!" was pulled outside, and the empress was still a little confused.

"It's just a legend, but it's actually a lack of oxygen inside. Ren Baqianpan sat on the ground and said with a smile.

"Oxygen? I seem to have heard of it!" the empress beckoned thoughtfully, and the green kite and red luan carried two chairs.

"There are actually different components in the air, such as nitrogen, hydrogen, ozone, oxygen, carbon monoxide, carbon dioxide, and various inert gases. Among them, oxygen is what living things need to survive. If there is no oxygen, they will suffocate to death. Ren Baqian put his arms on the chair, and the person sat on the ground and didn't bother to get up.

In fact, the shady ground is cooler.

In addition, there are some gases in this world that have different compositions from those of the earth, which is the conclusion of the study through the situation of some microorganisms. However, Ren Baqian didn't go back with a bottle of air, so naturally he didn't verify it.

The empress sat on a chair and beckoned: "Bring the wine!" while letting the eight thousand popular science.

"I don't know how long it has been closed down, some of these microorganisms that are invisible to the naked eye will consume oxygen, and after a long time, they will lack oxygen, and if they go in, ordinary people will die in a few minutes! Ren Baqian explained to the empress, and Tong Zhenye and the officials of the Ministry of Industry next to him felt fresh when they heard it, and couldn't help but ask, "Why did the torch go out?"

They know about this phenomenon, but they don't know why.

"It's because of oxygen, not only living beings need oxygen, but even flames need oxygen. If there is not enough oxygen, the flame will be extinguished. When Ren Baqian said this, they found it even more interesting. This so-called oxygen can really play a lot of roles.

"Under normal circumstances, it takes at least half a day to ventilate before you can go in. A Ministry of Industry official said.

"If you want to be faster, it's easy to find someone in the passage to make a full palm in the direction of the door, which will drive the air flow, speed up the air exchange, and shorten the time a lot. ”

"Heartbreak!" the empress called softly.

"I'll make arrangements, Your Majesty!" Xinzhi has never been slow to react in official affairs, and he immediately understood.

Soon there was a sound of empty palms slapping the air in the pit, bringing a strange sound of breaking the air, like waving a huge object, but there were some differences.

It's so much easier to use than a fan or something!

"Master Tong, what period do you think this left behind?" asked Ren Baqian.

Tong Zhenye shook his head: "The old man doesn't know much about this aspect. ”

Ren Baqian had a faint thought in his heart, this passage was probably left by the Terrans when they were first driven here, or not long after.

Teng Snake ...... Even if it is not as good as the unicorn and the dragon, it is not far behind, and it is also a legendary creature.

Only then will it be most likely.

In that case, there must be someone here who wants to leave something behind.

So what is on the wall, Ren Baqian also has a little guess.

"Your Majesty, what do you think that mural looks like?" Ren Baqian spread out his palm on the empress's lap, and the empress casually put a fruit in his hand.

This action was smooth, and the two of them did not hesitate at all, but it made Tong Zhenye's eyebrows jump.

Inexplicably, I thought of the woman back then.

"Do you have an idea?" said the empress casually.

"Your Majesty also has a guess, right?" Ren Baqian and three mouthfuls gnawed the fruit clean.

"I think it could be the road map. Ren Baqian said bluntly.

"It's the road map of the 60,000 mountains. The first place we saw when we went down was the pillar forest screen. And when we got to the place near the door, there was the depths of the 60,000 mountains. The empress said directly.

"Your Majesty can even recognize the other party's painting skills!" Ren Baqian was greatly admired.

This level of map can be recognized, and it is also a kind of strength.

However, the empress's words also made him clear of his thoughts.

"How can there be a road map of 60,000 mountains here?" Tong Zhenye was slightly stunned.

"Forgot what I said, it's just a guess, and we have to look at it to find out. The empress said to Hongluan: "Go to the Qingxin Palace, there is a map near the Zhulinping left by Haoguo, you go and get it." ”

Then he snorted lightly: "This map was drawn when the Hao Kingdom attacked the cottage. ”

After Hongluan left, Tong Zhenye's face was cloudy. He remembered what His Majesty had said.

The Terrans were driven from afar, numbering less than 100,000, some of whom remained in the 60,000 mountains to defend themselves, while others came to the plains and established the state.

And in the 60,000 mountains, there are many races. At the other end of the 60,000 mountains, there are the so-called ten thousand races.

When the empress said this, everyone in the court was surprised.

It's just that the matter is too unbelievable, and there is no other news, so everyone gradually puts this matter behind them.

The passage below is not simple, and the white jade ground alone is not something that ordinary people can do. If the road map left on the wall is really the road map in the 60,000 mountains, combined with what the empress said, it is indeed likely to be left over from that period.

Waiting for the map to be brought over, Ren Baqian glanced at it, this was much more decent than the things on the wall below, at least he could see that it was a map.

After watching it for a long time, I didn't see why it came, so Ren Baqian had to give up.

After another half an hour, everyone estimated that it was almost over, so they went down to the passage again, and did not hurry to go inside, but first stopped at the beginning of the mural on the wall, and compared it with the map, and then it was easy to see the problem.

"This is Zhulinping, about the same location as on the map, yes, it is indeed there. Ren Baqian pointed to the holes on the wall that he had pointed out with his fingers. A hole is a mountain.

"This is Yufan Mountain, here is Heiling, here is Pingliang Mountain......" Tong Zhenye compared them one by one.

"Your Majesty, that's it on the map, and there is only the range of Zhulinping's half-month journey on the map. Tong Zhenye said while gesturing.

On the wall, however, it's only a meter.

And the murals on this wall are more than 40 meters in total......

If it is true, it means that it will take at least two years to complete the route painted on the wall.

"This is the Trapped Dragon Cliff! They passed through here!" the Empress calculated as she walked, then pointed to one of them.

That position was a strange-shaped sign, and when the empress said this, she could barely guess that it was a dragon head sign if she looked at it carefully.

This logo is so magical!

Ren Baqian was even more convinced that the painting was a piece of with two wooden sticks inserted into it......

Starting from Yacheng, passing through Zhulinping, and arriving at the Sleepy Dragon Cliff, it takes at least a month and a half to walk, and it is the speed of a mount.

And on the wall, it's just a meter and a half away.

Looking at the dozens of meters long wall behind them, everyone gasped.

Now everyone finally has a little idea of how big the 60,000 mountains are.

According to the length of this picture, it will take at least two years to get out.

There is a line on the wall that winds from beginning to end, and that is the route of those people in the first place.

"Let people paint on the wall, this picture is of great value, and it must not be lost. I went inside first, and I became more and more curious about what was inside. The empress made sure that the wall was indeed as she thought, and gave a faint command, turned her head and walked inside.

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