After Professor Sun's explanation, everyone wanted to see with their own eyes what amazing secrets lie at 30 degrees north latitude.

The ground was littered with stagnant water and mud, and from time to time shimmering mayflies flew in front of you.

Ancient islands, which were buried in the ground hundreds of millions of years ago, are too large to be detected, and are full of a large number of ancient tree species that have long been extinct, and the terrain is complex and varied.

The prehistoric plant community is covered with many canyons and caves, most of which are cut and eroded by water flows, and belong to karst landforms, with strange spaces in the caves, strange structures, layered rocks, and circuitous and secluded.

At this time, it was difficult to completely identify the landform just by relying on the rough map in Professor Sun's hand, but fortunately, Hu Bayi used the dragon search alchemy to identify the location, plus the photo comparison obtained by the expedition team, so that he could barely deviate from the route in the depths of this circuitous cave.

In the route, many sections of the road are submerged in underground waters, and everyone has to wade in the cold and biting waters.

Encountering a section where the water was too deep, the Nine Deaths Tomb Armor, which had been hidden underground, stretched out its bronze blood erosion and sent everyone to the other side of the river.

Wading through the river, looking for a route into a deep valley overgrown with horsetail mushrooms, first found a hidden and dry tree hole, blocked the hole, and gathered a fire to dry clothes.

Looking at Song Xing's appearance without dripping water, Wang Fatzi only felt amazing: "Master Song, is this set of clothes on your body a daffodil that is invulnerable to water and fire in mythological stories?" ”

Along the way, when encountering shallow water, Song Xing directly tread water and crossed the river, which shocked the treasure hunting trio and Professor Sun again.

It is a real treading water to cross the river, as if the feet are not stepping on the water, but hard mud and stones, after crossing the river, the soles of the shoes do not even have a wet mark, so Wang Fatzi is particularly curious.

Song Xing looked at Wang Fatzi and smiled and said: Water and Fire Immortal Clothes, Golden Muscle and Jade Lotus, Mercury Blood and Silver Chalcedony, Zhou Tian Tuna, several realms of martial arts, according to your qualifications, practice diligently, and you can enter the realm of Water and Fire Immortal Clothes in five years. ”

Wang Fatzi was suddenly excited, "I can also cultivate to this point?" ”

Song Xing didn't lie to him, Wang Fatzi's own qualifications are okay, the martial arts that Song Xing taught him, although the name is mediocre, but they are all tailor-made for him, the most suitable martial arts, plus with the guidance of a great master like Song Xing, it takes five years to cultivate into a water and fire immortal clothes, which is still conservative.

When Wang Fatzi thought of seeing Song Xing riding the waves just now, and thought that he could also reach such an immortal realm in the future, he was suddenly overjoyed.

Song Xing taught him a lesson: "The way of martial arts is like sailing against the current, you can't slack off for a day, you must cultivate your mind before cultivating yourself, otherwise you will never be able to find your own martial arts." ”

Wang Fatzi's heart sank: "Master Song, I know." ”

After resting, the group followed the map and headed deeper into a canyon that had once been the peak of an ancient island, and had been eroded by geological movements and wind and rain to turn it into countless giant rocks.

The mountain peaks are staggered and undulating, the tubular wood fungus grows denser than the jungle, the environment is humid and depressing, the clouds and fog are wrapped in the deep valley, even the compass in Hu Bayi's hand has lost its direction several times, making it impossible to distinguish between north and south.

Fortunately, Hu Bayi's sixteen-character yin and yang secret technique is really excellent, and in this place where ordinary people are completely disoriented, he stubbornly relied on the compass in his hand to find the most obvious location marked by Professor Sun's map.

That mysterious cave that leads to Shennong Tiankuang!

Song Xing came to the cave and saw two headless stone turtles, both weighing a thousand catties, with no negative monuments on the turtles, and they were bare and covered with moss marks.

Aside from the wood fungus in front of the stone turtle, it is a circular deep pit that sinks vertically from the mountain, the scale is terrifying, and the terrain is also very abrupt and weird.

Professor Sun used a compass rangefinder to observe that the cave was at least 100 meters in diameter, and there was fog inside, so that the bottom could not be seen.

Above the crypt is a towering ancient tree, the shape of the crypt is very neat, each layer has countless sizes of connected caves, swallow nests like clinging to the mountain wall, the hole of the chisel marks and speckled axe marks are still faintly visible.

The roots of the ancient trees hanging down from the heights spiral down the terrain, obscuring most of the entrance, and the atmosphere of claustrophobic mystery is indescribable.

Professor Sun looked up at the huge tree wall in front of him, which was as huge as a mountain and could not be seen, and there was a hint of shock in his eyes: "Such a huge tree, is it a building tree that connects heaven and earth in myths and legends?" ”

Legend has it that Jianmu is a bridge between heaven, earth, man and god, and that emperors such as Fuxi and the Yellow Emperor all used this sacred ladder to go up and down the heavenly court on earth.

A few years ago, on the bronze god tree unearthed in Sanxingdui, Guanghan, there are branches and leaves, flowers, fruits, birds, beasts, hanging dragons, divine bells, etc., experts believe that the prototype of this sacred tree may be a building wood.

"The Classic of Mountains and Seas, the South of the Sea": "There is wood, its shape is like a cow, and it has skin, such as tassels and yellow snakes. Its leaves are like Luo, in fact, such as the wood, its wood is like a tree, and its name is Jianmu. ”

Hu Bayi felt that Professor Sun had become more and more chattering since his trip to the Earth Immortal Tomb, so he refuted: "Deep underground, the environment still maintains a prehistoric environment, and it seems that there is nothing strange about this ancient tree growing into its current scale, haven't you seen the creatures here are much larger than the outside world?" ”

Professor Sun disagreed: "It is rumored that in ancient times, Fuxi observed the periodic changes of the shadows left on the ground by the sun, the changes in the cold and heat of the four seasons of the weather, and the changes in the prosperity and withering of plants in spring and autumn, and invented the innate gossip, which is the cornerstone of the Book of Changes. Later, Shennong got Fuxi gossip, went to the capital of Guangzhiye to climb the Jianmu to the Heavenly Emperor's Garden to take Yao grass and mistakenly ate the broken intestine grass and sat under the Jianmu. ”

"According to ancient records, the place where Shennong sits should be Shennongjia, so it is possible that this giant tree may really be a building tree."

Speaking of this, he couldn't hide the excitement in his heart, the green tomb has been looking for two thousand years of Shennong Tiankuang, but he didn't expect it to be found so easily, as long as he follows the roots of this ancient tree down to the outside of the crypt, you can see the mysterious Tiankuang that has disappeared for two thousand years, and see the civilization that has disappeared in the long river of history.

Hu Bayi shook his head: "I may not believe all the things recorded in ancient books, but the map has been interrupted here, maybe there is really something we are looking for underground." ”

Song Xing pondered for a moment and said: "The end point shown on the two maps is here, no matter what, you have to go to this underground to explore, there are nine deaths and horror tombs, and there is no need to care about the general danger." ”

Everyone had seen the terrifying power of the Nine Deaths Horror Armor, but they didn't doubt what Song Xing said, so they straightened out their equipment and began to climb down these huge tree roots that spread to the ground, towards the bottomless cave below.

(End of chapter)