At this time, I saw a long sword shining with cold light in Tong Changsheng's hand, and he inserted this sword into the reef, and then the sword qi burst out and spread out underground.

The majestic sword qi reached five or six kilometers below the ground and began to decay, but he was followed by another wave of sword qi gushing out, expanding the depth and breadth of the previous wave of sword qi again.

Yang Guang quietly sensed Tong Changsheng's actions, and couldn't help but sigh at the sharpness of his technique, this continuous sword qi was actually stronger and stronger wave by wave.

What's more important is that the sword qi emitted later can have an impact on the previous sword qi, causing it to produce new changes, if this kind of exercise is used in actual combat, it is indeed difficult to resist.

Tong Changsheng continuously emitted nine sword qi, which had always caused the detection depth of the sword qi to reach nearly fifty kilometers, and the breadth was close to a radius of one hundred kilometers.

This detection range has far exceeded Yang Guang's ability, and the reason why Yang Guang was able to know exactly the limit of Tong Changsheng's range was because he secretly attached his spiritual power to Tong Changsheng's back and emitted several sword qi.

Therefore, he also knew that Tong Changsheng had not found any traces of civilization relics under this island, and he couldn't help but feel strange in his heart, if there were relics buried under the island, how could they not be found so deeply?

The purpose of preserving these relics of ancient civilization is to preserve the essence of civilization and technology, so that future generations of mankind can excavate and use it.

If you bury it in a place where you can't find it, you won't be able to achieve that purpose.

Tong Changsheng obviously thought of this, with a thoughtful look on his face, and then said to Yang Guang: "Since you have already looked for it, you should have guessed that most of this ruins are not here, and I think it probably won't be in the place where you are excavating."

I have a proposal: why don't you take all the clues you have so far, and we can work together.

If we succeed in finding the ruins, we will only have one thing, and the rest will be yours.

What are your intentions?"

Yang Guang didn't expect this Tong Changsheng to come up with such a plan, he thought for a while, and replied: "We can consider your proposal, provided that you also have to take out all the clues, which will be fairer." ”

"Hmm. ”

Tong Changsheng was stunned for a moment, then nodded noncommittally, and flew away alone.

The bald old man also snorted coldly: "You'd better get acquainted, my apprentice is not very good-tempered." ”

After that, he also disappeared in an instant.

"That Tong Changsheng was murderous to you just now. ”

Lao Lin threw away the cigarette butt, and there was no expression on his face.

Yang Guang nodded, after he said that sentence just now, he had already sensed Tong Changsheng's dangerous murderous aura against him.

Although it was only for a moment, it was very obvious that at that moment, Tong Changsheng didn't know what to think about, and he actually wanted to kill himself.

Probably because his answer was not satisfactory to him, or because he thought that killing him Yang Guang would make it easier for them to find the ruins.

It's just that for some reason, he suddenly changed his mind again.

......

After the master and apprentice joined the team, they explained the situation in general, and Zhang Yuanshan frowned and said, "It would be good if they agreed to exchange information, but now our clues seem to be useless."

If this coordinate is useless, it means that there is a problem with these clues from our previous ones. ”

Yang Guang remembered the feeling that something was wrong before, and said to Zhang Yuanshan: "Can you show me those clues before, sometimes bystanders are clear." ”

Zhang Yuanshan immediately transmitted a series of information to Yang Guang through the chip, and Yang Guang checked them one by one, and he didn't seem to see anything wrong.

In the end, his attention returned to the coordinates, and it didn't take long to find the key, and asked Zhang Jin: "In this underground world, is there no problem of the movement and change of latitude and longitude coordinates?"

Zhang Jin replied: "Generally speaking, there is no drift of the same section of our bottom crust in the underground world, and even if it is older, there will be no changes in longitude and latitude similar to the surface of the earth. ”

Yang Guang immediately asked: "What if the central axis of the earth changes? Isn't there a theory that there may have been a sudden displacement of the north and south poles?"

If there is really a phenomenon of displacement of the North and South poles, the coordinate information where the relics of this ancient civilization are located will definitely lose its meaning. ”

Zhang Jin and Zhang Yuanshan couldn't help but glance at each other when they heard this, and some suddenly understood what they meant.

Obviously, their father and daughter did not think of the possibility that Yang Guang said before, after all, there is no actual evidence of the displacement of the earth's poles, but it is indeed very likely to happen.

Zhang Yuanshan sighed: "Since this is the case, the coordinates of this relic from at least two billion years ago are useless, if the earth really has a sudden change in the central axis, then for so many years, it is impossible to determine how many deviations have occurred." ”

At this time, Jiao Hong said: "This coordinate is the information that we have worked so hard to find, it should not be meaningless, if the technology of the ancient civilization is so developed, they will definitely take into account the factor that the coordinate position will change." ”

Yang Guang's eyes lit up when he heard this: "Unless ......"

"Unless what?" everyone turned their eyes to him.

Yang Guang muttered: "Unless this is a coordinate that will not be offset in any way, that is to say, this coordinate may not be on the surface of the ground above, nor on the surface of this side, nor in between, because the latitude and longitude of these places are likely to change."

If this coordinate is on Earth, then there is only one possibility......"

Yang Guang said and pointed to the core of the huge fireball that seemed to be slowly spinning overhead.

Zhang Yuanshan shook his head and said, "This seems to be even more impossible...... Not to mention that the temperature of that thing is above 5,000 degrees, it is not a good place to preserve relics.

What's more, although the earth's core is solid, it also has the nature of a fluid, and if the ruins are buried in it, won't the position change even more?"

"I think it's a possibility. Zhang Jin put forward a different view.

She said, "You see those man-made rings outside the core of the earth, don't they look like latitude and longitude? If the ruins of this civilization happen to be the civilization that built this ring, they are very likely to preserve their civilization on those rings." ”

Yang Guang nodded, Zhang Jin said everything he guessed in his heart for himself, this senior is worthy of being a liberal arts bully among martial arts students.

After listening to Zhang Jin's analysis, everyone felt that the possibility was very great, and the previous frustration suddenly turned into excitement.

Lao Lin Tou was calmer, and he told everyone: "Let's not rush first, wait until the specific location is determined, and then make good preparations before acting."

This time, the old man Chao also came with his precious apprentice, and this old and young man is not simple. ”