When he flipped through the booklet, he focused his gaze on the two strange eyes on the back cover. Those two eyes must be meant to bring some kind of mysterious revelation to the reader.

"Will they represent earth and hell?" He asked himself.

The world is prosperous, and hell is hideous, and they are two worlds that have no intersection. Anyone wants to live on earth forever rather than be dragged to hell and tortured by the ghost world.

"What about the broadest of ideas? What touches your heart the most?" Gesang continued the topic just now.

"Nope." Guru Jiayu shook his head.

Gesang asked in surprise: "Really? As a hidden master with a complex identity, hasn't your mind throbbed tremblingly?"

Guru Gyala replied ashamedly, "That's true, I am staying here, my vision is limited, and I have never been able to improve my wisdom and reach a higher level. Maybe this qiē is all due to my mediocre qualifications. ”

Lin Xuan flipped through the booklet, his fingers twisted inadvertently, and the page on his fingertips was effortlessly peeled off and turned into two thin pages. He patiently separated the two pages, revealing a palm-sized gray bay leaf sandwiched in the middle.

Baye, the leaves of the bay leaf tree, can be used to make a fan, or can be used instead of paper to write, also called "Bedo". The bay leaf tree, called "Golan" by the Dai people of Xishuangbanna, is a woody plant of the palm family. Before the ancient Dai people mastered the papermaking technology, they often used bay leaves as paper to engrave Buddhist scriptures. After the leaves are treated with a special process, the scriptures engraved with rope can be preserved for hundreds of years.

Lin Xuan had seen many kinds of Bayleaf Sutras, but those all retained the original appearance of Bayleaves, and the fingertips of this leaf were treated extremely thin, almost transparent, so they were placed in the paper sandwich without being noticed.

He carefully pinched the bay leaf, which was left with a black figure.

Modern people, as long as they have a normal school education, can call out the name of that kind of figure. If this bay leaf is placed in a modern setting, there is certainly not the slightest surprise in it. However, it should never be found in the mezzanine of an ancient booklet because it is a map drawn with contour lines.

Therefore, while pinching the bay leaf and seeing the graphics clearly, Lin Xuan couldn't help but smile bitterly.

"That's," Gesang turned his face.

"A map drawn with contour cartographing and engraved on a bay leaf with an iron pen is incredible!" Lin Xuan held up Nabaya and showed it to Guru Gesang and Master Jiayu.

Judging from the density of the contour lines, the site indicated on the map is steep and valleys are connected, and there is hardly a small piece of decent flat land.

In the Himalayas, there are many such places. There is no text, just look at the illustrations, and it is impossible to match them into the seats.

"I've flipped through that booklet more than a hundred times, but I didn't expect there to be another mystery in the folder!" Gesang sighed.

Things in the world are so strange that if it weren't for Gesang taking the booklet out and accidentally falling into the water, the secret in the folder would have been lost forever.

"What a strange map...... Before the advent of aerial reality maps, contour mapping was indeed the best choice for map experts to depict the terrain of snow-capped mountains. However, who can explain the age of this booklet? How could such scientific cartography have been possible in those days?" Gesang muttered to himself, gradually falling into deep thought.

It is remembered that the way of thinking about the contour method of showing the landform comes from the contour method.

In 1728, the Dutch engineer Krucchi first used the bathymetric method to represent the depth of rivers and the condition of river beds, and later applied it to represent the depth of the ocean. In 1729, Kurghs made the first Zuò contour charts, which were later applied to land to represent the undulating forms of landforms. In 1791, the first topographic map of contours was drawn by Tubuntrier in France. Trielem used the contour method to represent the topography of the realm of the Kingdom of France. In the late 18th and early 19th centuries, the contour line method gradually began to be used in topographic maps. At the end of the 19th century, the contour line method was recognized by the scientific community and finally became the basic law for large-scale topographic maps to show the actual state of the landscape.

To sum up, the earliest date for the appearance of contour maps in the world should be fixed in 1728 AD, and the other is Kluchi.

On the other hand, the ancient scroll of "The Land of Extreme Things" in front of Lin Xuan can be verified as early as 1728, which can be confirmed from the Sanskrit meaning above.

"In Tibet, we have to face a lot of unexplainable things, which are unreasonable, partial and real." Gesang said quietly.

"I couldn't agree more." Lin Xuan nodded.

The Tibetan Plateau is the closest place on Earth to the sky, where the laws of human nature are failing. Far from it, the "10 unsolved mysteries of Tibet" that have attracted the attention of the world alone are enough to make people puzzled.

"I'm going to disassemble it now and see if there are bay leaves hidden in the other folders." Lin Xuan said.

According to the normal procedure, the booklet belongs to the Jiwu Temple, and if you want to perform major surgery on it, you must get the consent of the Jiwu Temple. However, the matter has come to this point, and extraordinary measures can only be adopted so as not to delay the fighter plane.

As he dismantled the folders, Gesang continued to talk to Guru Gyalba.

"Where do you think the crystal ball shows the steam engine?" She asked.

Guru Gyala replied frankly, "I don't know, I understood a long time ago that I am here to show and not to explain."

The display is presented as it is, without making any changes from the subjective will.

Interpretation is to use what you have learned in your life to interpret one thing in detail.

The former will not mislead future generations, and the disadvantage is that it cannot give effective enlightenment to future generations; The latter can lead people astray and go further and further in the wrong direction.

"So, given you time, can you move forward from a half-withered and half-glorious state? I know that this technique of 'mountain and water double rest' originated in the era when Princess Chizun of Nepal married Songtsen Gampo, the king of Tibet, and was founded by Lord Lu Dongzan, the head of the top ten wise men in Tibetan history, and integrated the essence of Nepal's 'mountain prison technique' and Tibet's 'water chasing technique'. From childhood to aging, it is a positive cycle; From aging to childishness, it is a negative cycle; If it can be reciprocated twelve times, then the **mortal fetus will be refined into a humanoid relic with a transparent body, and it will never die. If you think you can do it, I'll go out of my way to help you. Gesang said.

It is precisely because of such outstanding talents as Songtsen Gampo, Princess Wencheng and Princess Qizun that the Qinghai-Tibet Plateau has been well managed, and its economy, culture and agriculture have all developed by leaps and bounds, becoming the border pearl of Chinese mainland.

"I can't do it anymore." Master Jia Hu laughed miserably.

"Can't you try again?" Gesang looked down at the puddle, his lips moved, he counted for a while, his brows furrowed slightly, "Judging from the water wheel, you have already made eleven round-trips, if you return to your childish period from old age this time, you can slowly age effortlessly, complete the twelfth cycle, and become a humanoid relic." Wouldn't it be a pity to give up at this time, for the sake of the mountain, and fall short?"

On the rocks around the puddle, there are dense and tortuous micro-cracks, each of which can be closed around the puddle, which should be the "water wheel" that Gesang said.

Hydraulically speaking, any piece of water will form a water line due to the rise and fall of the seasons, and stay on the shore permanently, which is equivalent to the "annual rings" of big trees. The water in the world follows the principle of "summer is full and winter is dry", and a line represents a year. Then the cycle of Guru Jiahu from birth to death and from death to life will take 200 years. Eleven cycles will take at least 2,200 years, which is a very long and difficult process.

"I've reached the limit of my thoughts." Guru Jiayu replied, "The landslide has dried up, and there is no way to continue. ”

Gesang sighed and stopped asking.

"What would you do?" This time, it was Guru Jiahu who took the initiative to ask.

"All the way forward, no way back." Gesang replied.

"So I'm curious, where did you come from and where are you going?" Guru Jiayu asked again.

"I come from an old mine in Kashmir, which is known in Hindi as 'Furanahaya', which means 'well within a well'. It was a place where the distribution of ore veins was quite chaotic, and in the same cave, sometimes earth gold could be excavated, sometimes agate and jadeite, and sometimes coal and copper ore could be found. I haven't been to the deepest part of the mine, and one of the tunnels is said to be able to go straight into the leylines. It is the lair of the Brahma Society, a chaotic place of blood, violence, and sin. Gesang replied slowly.

"I know that place." Guru Jiahu said.

"I know that you know that place," said Gesang, "that thought knows no boundaries, and it is in that mine that leads to the leylines that I know your save." I have always believed in the saying that the abyss is connected to the abyss, and every life has a struggling heart. You okay? Can you still hold on?"

"I've ......," Guru Jiayu's breathing became rapid, "it's not as calm as it seems, and danger is everywhere...... I tried to study the ghost lake...... Its water quality and sediment at the bottom of the lake contain zài a special ...... Something that in some sources is called 'black hole dark matter'...... Gotta figure out what's in that lake......"

Lin Xuan gave up what he was doing, stepped over to Master Jiahui, took out an iron box from his pocket, poured out two black pills the size of peanuts, and stuffed them into Master Jiahui's mouth.

"He himself said that he had reached the end of his life, and no medicine could save him." Gesang said.

"I'm a doctor, I can't just see death without help, right?" Lin Xuan smiled bitterly.

"The matter here, the medical skills and the medicine stone can no longer be solved." Gesang replied.

Guru Jamba's feet were still submerged in water, but it was clear that the puddle was leaking and the water level was slowly descending. When more stone walls were exposed around the puddle, Lin Xuan discovered that the fine cracks representing the "water wheel" were everywhere, some thinner than a human hair, and denser than the warp and weft threads on the loom.

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