"Why?" Yang Yi asked in surprise,

The atmosphere has a troposphere and stratosphere, and there is an ozone layer in the stratosphere, and the scientific explanation is that the ozone layer is protected from ultraviolet rays, but I don't know that the ozone layer is actually a one-way prohibition, and the aura cannot come in from the outside, but the entity can come in, but it cannot fly out by virtue of cultivation. ”

Tu Nan paused for a moment and continued: "Once we fly to the ozone layer with our physical body or cultivation, we will be frantically extracted by the ozone layer, and in the end, before we can fly out of the ozone layer that is at least ten kilometers away, we will basically run out of spiritual power and become a waste person, and the waste person has only one way at an altitude of tens of thousands of meters, and that is death!"

Yang Yi opened his mouth wide in shock, he had learned about the ozone layer since elementary school, and he had always felt that human beings were protected by the ozone layer, who knew that there was such a saying, how could the ozone layer absorb spiritual power, and also restrict the entry and exit of cultivators.

"But, how did the planes, rockets, satellites, or something get out?" Yang Yi suddenly thought of this and asked directly.

"Because that's the fuel used, not the spiritual power or other energy used. Airplanes generally cruise at an altitude of 10-15 kilometers and basically do not touch the ozone layer, while rockets send satellites to space through fuel, which is naturally unaffected, which is why I do not fly out directly, but have been studying spacecraft. Tunan explained.

"Who set this ban? Why is it so powerful, is there no other way to break it?"

"I don't know who set it up, but it must be a very good power, maybe even higher than those great powers in the ancient era, after all, setting such a ban is just to prevent cultivators from going out of the earth, and all kinds of functions are targeted, this ability is estimated to be able to reach it except for the previous generation of ancestral dragons. ”

"And," Tunan said, "the ban is powerful, but the arranger obviously didn't expect him to underestimate human beings, especially their creativity and destructive power." Without the cultivation of aura, it immediately turned to the development of the science and technology side, and the development of the science and technology side is still very fast, and the result is a large number of chemical gases, and this gas is the nemesis of the ozone layer, especially the ozone hole in Antarctica, but the ban is still firmly supported, almost all of them were broken, and it is estimated that it will be about ten years, and the Antarctic ozone hole will be completely broken, and this ban will be broken. ”

"But without the ozone layer, would humans and life on Earth really be unable to live? After all, research has proven that ozone does block all kinds of cosmic rays, especially ultraviolet rays from the sun. ”

"This is easy to solve, we don't plan to destroy the ozone layer, and the people who set up this ban don't have much malice, it's just to restrict the earth from entering the cultivation era again, we can take a spaceship out, as long as we get out of the solar system, the sea is wide and the fish jumps." If the ozone layer is really broken, just find a spiritual treasure to make a door, which can also play a role, and will not let human beings and the earth enter the mass extinction again. Tunan smiled and explained the solution.

"That's good, we are almost the last group of cultivators on the earth, and the earth is also our home planet, so it is best to let him develop normally. Yang Yi said with relief.

"This is also everyone's wish, the countless epochs of the ancestral star have been traumatized too much, there have been constant invasions of foreign races, from ancient times to the present, I don't know how many times, and how many times life has been extinct, it is indeed not easy to develop to the point where it is today. Tu Nan also agreed that his experience was deeper than Yang Yi's.

"But how is the Dragon King of the North Sea going to take it away, or let him stay here first?" Yang Yi asked, looking at the nine dragon pillars.

"Lord, this space is the Dragon Palace of the North Sea, and all the Dragon Palaces are almost a spiritual treasure, as long as he recognizes the Lord, he can directly receive your Dragon Ball in the space. Ao Xian replied beside him.

"It's as simple as that?"

Yang Yi found that he was a little white again, and he usually considered it according to the thinking of modern ordinary people, and he never thought that such a big place would be the Dragon Palace, but isn't his own Dragon Ball space also very large?

"It's that simple, but the Four Seas Dragon Red must be the direct inheritor of the Dragon Palace, or the bloodline higher than the true dragon to inherit, and the Lord does not have this kind of problem at all, using the ancestral dragon bloodline to subdue the Beihai Dragon Palace, there is nothing worth worrying about at all. Ao Xian replied with a smile.

"I still don't know much, so I'll give it a try, but where do I need to verify the bloodline?"

"Right there, there is a miniature crystal palace, just drop a drop of blood, and after verification, you can control the entire crystal palace. ”

Under the guidance of Ao Xian, Yang Yi walked to a stone, there is a palace made of crystal on this stone, which seems to be a palace model, but the palace, houses, and gardens are all very exquisite, just looking at the model is much more magnificent than Li Chengjun's crystal palace at the beginning, and the area is also a heaven and an underground, no wonder Xia Li said that when he saw the Dragon Palace of the Four Seas, he would know what the real crystal palace looked like.

He didn't delay too long, and directly forced out a drop of golden blood and dripped it, only to see that after the miniature palace absorbed the blood into it, it emitted a brilliant golden light, and this crystal palace directly turned into a ray of light and threw it into Yang Yi's body, and when he looked for it, he found that the phantom of this palace had been printed on the ancestral dragon ball.

Yang Yi felt a very subtle connection with this palace, as if he could control it at will, and his mind only felt that the ground shook slightly, and a palace covering an area of thousands of acres automatically appeared in the Lingshui Lake of the Dragon Ball space, if it weren't for the repeated upgrades, the Lingshui Lake in the earliest days really couldn't let go of this behemoth, but now it only occupies a corner of the Lingshui Lake.

After the White Dragon Change, the Dragon Ball space has expanded many times, and it is not an exaggeration to say that the Dragon Ball space is a continent, with mountains stretching, rippling spiritual water, verdant grasslands, lush forests, at least one million square kilometers, compared to the whole continent of Australia, it is not a little different, and the environment is more beautiful, the climate is more comfortable, and the aura is also very full.

And this space upgrade has also obtained a new kind of spiritual water, that is, the water of destroying the gods, this kind of water is not like the spiritual water, pure water, and origin water, it represents life, but represents destruction, weak water destroys the body, and the water of destroying the gods is aimed at the soul, no matter who gets a little bit of it, the soul will be corroded, it can be said that Yang Yi has added another kind of big killing weapon.

After he took over the Crystal Palace, the group appeared directly in Lake Baikal, Ao Xian opened the water shelter, Shen Da Kilometer's water pressure had no effect on them, and Yang Yi withdrew from the space and several people were waiting for him.

"We have found the Dragon King of the North Sea, let's take a look at the situation of the other passers-by, and then find a place to use as a base, and improve everyone's strength as soon as possible to deal with the alien races that may come at any time. ”

After Yang Yi came out, he said to Ao Xian and Feng Yi that now they and their clansmen were cultivating in the space, and the abundant aura allowed them to recover quickly, and it would not be too long before they returned to their peak state.

"Yes, Lord, when I was looking for the Dragon Palace, I came across something at the bottom of the lake, which may be useful in the world, let's see if we can take it together?" Feng Yi stepped forward and asked for instructions.

"What is it?" Yang Yi asked.

"It's gold, a lot of gold!"

"Gold?"

Yang Yi repeated in surprise, he is really not unfamiliar with gold, in the Java Sea and the Indian Ocean, he has harvested a lot of gold, but it adds up to about 100 tons, and Feng Yi said a lot, it must be a lot of gold, but where does the gold come from here?

"Is there really gold? Let's go over and see if it's a lot of gold, I probably know where these things come from. Tu Nan said with a smile.

"Brother Nan is also interested, then let's go and have a look, Feng Yi, you lead the way in front." Yang Yi commanded.

A few people went underwater to the place Feng Yi said, they went all the way to the south, about a hundred kilometers before they arrived, this is a canyon at the bottom of the lake, the canyon is covered with silt, and there is nothing abnormal from the appearance.

However, Yang Yi and the others were not ordinary people, and they found the gold Feng Yi said through the mud through their different methods.

Of course, Yang Yi also found that five or six meters below the silt, there was a steam train that looked like the nineteenth century, and I don't know why it sank to the bottom of the lake.

The train is composed of carriages, but it is not a carriage for people, but a kind of boxcar for transporting goods, and the carriage is the gold that Feng Yi said, a full 26 carriages, full of piles of gold, this amount is Yang Yi, who has seen the pile of gold, widened his eyes in shock.

Looking at Tu Nan next to him, he was obviously surprised, but he quickly returned to normal, Yang Yi said in his heart that he still had to strengthen his mentality, this Tu Nan is worthy of the second generation of ancient gods, much stronger than him, Feng Yi and Ao Xian don't know the importance of gold to human beings, for them Yang Yi automatically skipped it.

"Brother Nan, there must be thousands of tons of gold, right?" asked Yang Yi.

"1,600 tons to be exact. Tu Nan said as he touched his chin.

"Brother Nan is still very powerful, and he can so accurately determine the amount of this batch of gold. Yang Yi smiled and said.

"Pull it down, I saw this train and happened to hear about the origin of this batch of gold, so I knew the specific amount of this batch of gold, but it was not estimated, and my eyes were not a weigher. Tu Nan replied with a smile.

"Is this batch of gold famous? Then why didn't anyone come to look for it?" Yang Yi couldn't think of what the origin of this gold was.

"Of course it's famous, this is the treasure of the last Tsar, and the entire treasury of Tsar Nicholas II is here, which has been saved for hundreds of years, a total of 1,600 tons, and there are a lot of them. ”