The tree vine lifted Zhang Jiabao to the bend of the cave road, and after he climbed firmly, he shrank back like a swimming snake.

Following the original road, Zhang Jiabao returned to the stalactite cave on the upper floor. The source seed in his body gave him insight into some of the memories of the tree god, and the underground caves opened up by the Thousand Branches were only a few as large as the tree god's location, and the small caves were thousands of them, interconnected with each other by underground passages that extended in all directions.

Several large caves are more than 500 kilometers in diameter, and are powered by geothermal energy generated by magma, and are the main inhabited countries of ancient remnants. In addition to the Tree God Cave, several major caves have thousands of huge stone pillars to support the weight of the rock layer at the top, and the stone pillars of the Tree God Cave have been dismantled one by one for tens of millions of years because they hinder the growth of the tree god, and the tree god has supported the entire cave roof by himself.

And the diameter of small caves varies from hundreds of meters to tens of kilometers. Those who can obtain energy grow vegetation, and occasionally a group of nomadic organisms will pass by, and when the vegetation is almost eaten, they will migrate to other caves, and when the vegetation grows again, a new group of creatures will visit.

Underground caves and passages are mostly in the dark, in order to survive and continue the race, for tens of millions of years, all kinds of creatures have evolved their own housekeeping skills, some have sharp claws, some have rough skin and thick flesh, some run fast, some have a keen sense of smell or hearing, and some have all kinds of "weapons" on their heads, backs and even tails, and some have no other advantages, that is, they are born more and reproduce quickly.

Tens of millions of years of history have also evolved a kind of "lantern dragon" with the ability to illuminate - a herbivorous creature larger than an elephant and resembling a rhinoceros, with a single horn on its head and a lantern-like white light on its end. They use the ball of light on their head to search for food, and they can also emit a rapid flickering light to warn them, when they fight, they use a strong light to show anger, and when they are courting, they emit a soft and textured halo to exude their charm and create a romantic atmosphere......

This "lantern dragon" is one of the kings of underground creatures, and if anyone dares to provoke them, the light one will be smashed by the light ball, and the heavy one will be stunned or even die by the electric light emitted by the light ball. But their temperament is usually mild, whenever the magma activity is regular and violent, that is, when they are in estrus, thousands of "lantern dragons" gather from various caves to the bottom of the giant trees in the Tree God Cave, the waterfall of magma, the beating red light, the sea of circular "lanterns", the harmonic sound of the earth beasts, and the singing of the birds, constitute an image of the underground prosperity.

Small caves may also be dens of solitary carnivores, like wolves that follow their flocks, where they follow herds of herds, kill one when they are hungry, and then continue to hide.

Of course, there are also "death holes" in small caves, and the cave that Zhang Jiabao first entered at the bottom of the abyss is a death hole without any living creatures. This kind of dead hole is mostly a cave that was once filled with magma and was abandoned by the Thousand Tribes to dig it.

If large caves are compared to kingdoms, then thousands of small caves are villages and towns, in which a wide variety of creatures form a vast system of fluidity and balance.

The Thousand Ancient Gods who led the people to dig holes in the ground at the beginning seemed to be a great architect, calculating all the causes and effects like the God of Creation. Each large cavern is located under a layer with abundant magma flows, digging paths to divert magma and forming waterfalls that flow into the caves through the gaps, bringing energy to the creatures, but also leaving an outlet for the magma flows to the surface to prevent the cave from collapsing when the magma erupts.

When the underground world was first created, the Thousand Tribes did not know how many people were killed or injured. After the dryad opened his mind, he also discovered that sooner or later magma would fill the underground caverns, often causing some of the more spiritual creatures to remove the wasteland from the caverns and fill the dead caverns.

Now Zhang Jiabao is in the stalactite cave, the five caves he saw are actually the channels where magma flows into the Shushen Cave to form a waterfall, and there are many such passages, but now the magma activity is relatively slow, and all the passages are not full.

There is only one passage to the surface, and that is the hole above the magma lake, which is more than ten meters high. How do you go up? Zhang Jiabao is in a difficult situation.

"Plant trees. ”

A thought came to his mind that the tree god had left on the source seed.

Zhang Jiabao thoughtfully put a shrub branch on the ground, and stuck the branch with the wound in his right palm, imagining that it would grow into a big tree and reach the hole. I saw that the blood from the wound was flowing out at an accelerated pace, glowing with a little green fluorescence, which was absorbed by the bush branches. The surrounding space seems to have an invisible substance flooded into the shrub branches. It grew roots, pierced through the rock, and then grew along the stone wall at a terrifying rate, growing roots and tendrils digging into it, and finally reaching the hole.

"Muketu. Zhang Jiabao immediately realized the magic principle contained in this, and it seemed that the source species gifted to him by the tree god had the ability to mobilize the free wood elements in the space.

Carefully climb along the wooden trunk into the passage at the entrance of the cave, but fortunately this passage is not vertical, but diagonally upward. Looking back, there are some black semi-lava blocks floating on the dark red magma lake, which seem to form a devil's face, which makes people palpitate. Look at the trunk of the shrub branch, which is gradually withering, and finally turning into a soft veneer.

The passage is sometimes curved and sometimes straight, sometimes steep and sometimes gentle. Although it was still dark, Zhang Jiabao was used to walking in the dark. After walking for two days, there was nothing to eat, and even the water in the gourd was saved and drunk in small sips.

Temperatures are getting colder, which means getting closer to the ground. When he saw the light again, Zhang Jiabao was sure that it was the sunshine. Falling into the abyss for almost a year, he finally returned to the surface.

When you come out, you will see a huge funnel-shaped crater, which looks like it is surrounded by a ring of hills, and down is a slope that falls into a black hole-like crater with a diameter of several hundred meters. This crater is actually the entrance to the ground where the Thousand Tribes went underground. The crevice behind him that led to the underworld was about the height of the middle of the crater.

When he finally climbed to the top of the volcanic cone, Zhang Jiabao had a feeling of seeing the mountains at a glance. Surrounded by lush black forests, the distant fog is a majestic projection of mountain ranges. The volcanic rocks under your feet are gorgeously colored, strangely shaped, some are red, yellow, white, black, gray, some are like ghostly cutting, some are arranged in a disorderly manner, some are striped, some are sharp, and some are mottled in color.

The huge crater seems to open the mind a little, dotted with puddles of blue-white hot springs, and the smell of sulfur fills the steam wafting from it.

"Who are you, and why are you here?" Behind him came two young men of his age, holding large bone clubs and wearing animal skin dresses, frowning at him.

The two are a man and a woman, both about 1.6 meters tall, both have black hair that hangs down to their waists, and there are gray hairs on their faces. The man's expression is resolute, and the woman's pretty face has a heroic spirit.

If you look closely, no, one shoulder and arm of the two are connected together, and one leg is also connected from the crotch to the foot, and there is only a gap in the waist in the middle. In the middle of them were the same trousers tied with straw rope, and they shared the sleeves of an animal skin. Such a weird and beautiful bisexual conjoined person, Zhang Jiabao has never seen it.