Qiao Yanxue looked at Xu Dong, smiled and asked, "Xu Dong, what do you think this will be." ”

Xu Dong shook his head, just ten large and small circles, Xu Dongzheng didn't know what was going on.

Qiao Yanxue took the piece of paper back from the fat man's hand, spread it out in his hand, took out another eyebrow pencil, and then drew it on the paper, but after a while, Qiao Yanxue handed the piece of paper to Xu Dong again.

Xu Dong looked at the piece of paper at this time, and couldn't help but cry out "ah".

On this picture, the red planet drawn by Qiao Yanxue with lipstick, and the black orbit drawn with the eyebrow pencil are really clear at a glance, and it is actually an extremely intuitive map of the orbits of the planets of the solar system!

Moreover, although it is only a sketch, in terms of proportion, it has an extremely accurate appearance, especially the two celestial bodies "Earth" and "Moon" on the map, as well as the ring on "Saturn", which makes people just look at it and stop thinking about it.

The fat man poked his head out, looked at it for a while, and while wrenching his fingers, he said, "Hey, it shouldn't be, look at this, one, two, three, four, five, six...... According to what you said, apart from the Sun, Mercury, Venus, Earth, Mars, Saturn, Jupiter, Uranus, Neptune, Pluto, one, two, three, four, five, six, seven**, it should be nine, how can there be one less? ”

Mu Siqing said later: "A few years ago, it wasn't Pluto that changed into a dwarf planet, so there are only eight big planets in the solar system......

"That's not right...... the fat man grabbed his hair and said: "Even if this statement is correct, but there are several stars that have only been discovered recently, you previously believed that this mural existed thousands of years ago, and people at that time would also know that there are only eight planets in our solar system, besides, these stars, like a snake, twist and turn, this doesn't make sense!" ”

Qiao Yanxue smiled slightly: "The mural, the age is old, this can be determined, as for why you said that 'they' also know that there are only 'eight planets', I don't know this, but, these stars are arranged like snakes, I think, I have several explanations, first, because the rock has been weathered and cracked, which has caused the entire mural content to be displaced, and secondly, this mural depicts a celestial phenomenon, this kind of celestial image, called 'Nine Stars Lianzhu'." ”

"Nine Stars in a Row!" Xu Dong exclaimed, people thousands of years ago knew that the Nine Stars were aligned! How is this possible, the history of mankind is only a few thousand years!

This question, Xu Dong and the fat man both thought of it at once.

It's a pity that this question, don't talk about Qiao Yanxue and Mu Siqing, I'm afraid that until now, no one can explain it clearly.

Mu Siqing also doesn't understand why people thousands of years ago would know that there are "eight planets" in the solar system, and from the recognized history, the world's earliest "planets" record is only more than 2,000 years, and in addition to comets, there are only five planets of gold, wood, water, fire, and earth, and there is no "eight planets" at all.

Could this be Qiao Yanxue's mistake!

Qiao Yanxue shook her head: "How many years has this mural existed, I can't know for sure now, but this painting of nine stars is a fact, perhaps, this should be painted by the people of the tribe that Qin Shi Huang has been secretly looking for, but not necessarily." ”

mentioned the three words "Qin Shi Huang", especially Qiao Yanxue's "medical skills", Xu Dong immediately thought of magical legends such as "immortal medicine" and "immortality".

Could it be that what Old Man Qiao is looking for is also the legendary "elixir of immortality"!

Thinking of this, Xu Dong shuddered for no reason.

When the fat man heard Xu Dong say this, he was also confused, that is something that only exists in legends! There have been countless emperors and generals in history, and there are too many people to look for the elixir of immortality, but I have never heard of anyone finding it.

"Looking for the 'elixir of immortality'? Why don't you go to find Sun Wukong and the Buddha to seek immortality, otherwise, go to the Queen Mother and ask her to give two peaches that bloom and bear fruit every three thousand years! The fat man said.

"Wrong!" Although Qiao Yanxue did not agree that the old man was looking for the elixir, Qiao Yanxue also firmly believed: "Qin Shi Huang's search for the elixir will definitely not be groundless, at least, let Xu Fu take the boys and girls to the overseas immortal mountains to find the elixir, this is a fact......"

"Whether there is really an elixir of immortality, let's not say, but from the side, the person who asked Qin Shi Huang to search for him should have very clever medical skills, which should be beyond doubt, otherwise, where would the rumors of 'immortal medicine' come from!"

Xu Dong pondered for a long time and asked: "Okay, let's assume that this tunnel was indeed built by that tribe with excellent medical skills, but what does this medical skill and immortal medicine have to do with this nine-star alignment, is it possible that in addition to their medical skills are very high, their astronomical knowledge is also beyond people's imagination, is it possible?" ”

Qiao Yanxue shook her head: "Perhaps, the mystery of the mystery of Yiqiē will be revealed after arriving at that place." ”

Thinking of that "place", there would be such a secret hidden, Xu Dong's heart couldn't help but churn, and then Qiao Yanxue said something, Xu Dong didn't bother to listen to it anymore, and hastily drank two bowls of beef soup boiled by the fat man, and then got into the tent.

It's not that Xu Dong has lost his curiosity, or worried about something, what Old Man Qiao is looking for, although it is a legendary thing, but it will not really exist before it is finished!

Judging from the things in the legends that I have seen and obtained during this period of time, these things should only belong to the legends, but not only have I seen them, but there are also a few things that I have obtained, which shows that the legends may not be the truth, then, almost every legend, there are endless treasures, if you follow these legends to find it, wouldn't it be a very interesting thing.

Therefore, Xu Dong not only didn't have any worries, but felt a little excited, to be precise, Xu Dong's life path unconsciously changed a direction.

-- Compared with staying in the pawnshop to pick up leaks and do business, Xu Dong feels that he prefers and should pursue the excitement of exploration and treasure hunting.

Thinking of these, Xu Dong gradually fell asleep, in a daze, I don't know how long he slept, and was woken up by Mu Siqing, the fat man had already cooked a pot of rice, made a dish, and was waiting for everyone to eat.

After eating hastily, Qiao Yanxue urged everyone to hurry up on the road, because it was in the tunnel, and I don't know how long time has passed, according to the people who entered Death Valley before, it is best not to stay in this area for more than three days, although I don't know when it has come now, in general, it has been more than a day, and the time left for four people is really not much.

It's just that the four of them walked forward, the higher and higher the terrain became, and when they got to the back, it was almost all stairs.

Yesterday, Qiao Yanxue was still a little worried that the mudslide would pour in, but now it seems that there should be no such possibility.

I don't know how many steps I climbed, but the four of them finally saw a glimmer of light, and when they saw the bright light, that is, they were almost at the exit, and the four of them were even more excited.

However, when they arrived at the exit, several people made another astonishing discovery, the exit place, originally a stone gate more than two feet thick, but this stone door was blasted open by someone, and the light was penetrated through the hole that was blown up.

Looking at the hole in the stone door, Qiao Yanxue frowned and said, "Judging from the selected explosion point, this person should be a master who knows how to use explosives very well, and the explosives used should be high explosives such as G4." ”

Xu Dong said curiously: "We didn't see any forks in the road along the way, how could anyone come in front of us." ”

The fat man also shook his head and said: "Brother Dong found that hole, it is said that he has just experienced a mudslide, and it is a newly collapsed hole, so there will be no people rushing to us from behind, besides, the most important thing is that the G4 explosion, that power, that movement, in such a sealed passage, it is impossible for us not to know!" ”

Qiao Yanxue frowned, shook her head, didn't say much, leaned over and got out of the stone door.

Out of this stone gate, the scene in front of them surprised several people again.

A stone bridge five feet wide and dozens of meters long was erected in the air on top of a misty abyss, and on the opposite side of the stone bridge was a stone gate that had been blasted open with a hole!

The fat man almost closed his eyes and stepped on the stone bridge step by step, for fear that the stone bridge would suddenly break.

In fact, it's not just the fat man who is afraid, even Qiao Yanxue, Mu Siqing and Xu Dong are very scared.

This stone bridge, which seems to have been created naturally and then slightly chiseled by hand, is already cracked and mottled in many places, and it is really impossible to tell when it will collapse.

Besides, the abyss is full of clouds and mist, and it is impossible to see the depth at all, and the wind above the abyss is blowing strongly, and people are almost swaying and standing unsteadily when they walk on it, and if they say that they are not afraid, it is simply false.

Fortunately, although the four of them were terrified along the way, they still crossed the stone bridge without danger, but they reached the opposite side.

When they arrived here, a few people realized that this side was definitely not just a stone gate.

On the head of the stone bridge, a platform of nearly 200 square meters was built, and behind the platform, there was a wall that was built five meters high with huge stones according to the mountain, although it had been eroded for countless years, the battlements on the city wall were still sharp and angular.

There are four big characters carved on the lintel of the city wall, however, these four big characters, twisted and twisted, the structure is extremely weird, almost does not belong to any kind of font known, the four people are naturally no one recognizes, Qiao Yanxue looked at it for a while, and then said, these words, should be a type of text that appeared earlier than the oracle bone inscription, belonging to the ancient characters, to this day, there are almost no people who can understand it.

Xu Dong looked at it for a while, and felt that this city wall built by the mountain seemed to be very different from the city walls he had seen, and as for the difference, Xu Dong couldn't say it for a while.

However, judging from the layout of the wall on both sides of the wall, which blends with the mountain and stands proudly on the edge of the abyss, it is clear that it was mainly used to defend against foreign invasions.

"Since it is used to defend against the invasion of foreign enemies, why not directly build the city wall to the edge of the abyss, leaving only one city gate, so that even if there is an invasion of foreign enemies, let them still be on the stone bridge, wouldn't it be better to kill them, why do you have to leave a large piece of flat land outside the city wall, wouldn't this give foreign enemies an opportunity, maybe a charge, all the enemies have come to this platform, wouldn't it be bad for the people who defend the city!"

The fat man asked puzzled.