Ten Thousand Caves Mountain. The deeper one went, the more humid it became.

Fang Zishu frowned, the yin energy in his body was intensifying. It seemed that the Ten Thousand Caves Mountain really wasn't a good place.

Now that he had reached the middle section of the One Line Cliff, he still could not see the shadow of the Ten Thousand Caves Mountain.

The Ten Thousand Caves Mountain was behind the one word cliff, but it wasn't close together. Coupled with the light, it was very normal that it couldn't be seen.

He made a simple torch from the cloth bag in his backpack. The light from the fire illuminated the surroundings, and when their vision widened, the two of them continued onward.

Gui Zhi tightly held onto Fang Zishu, his face somewhat pale. Even though there was no pure white snow here, there was an indescribable coldness that seeped deep into his bones.

He knew that it was not cold but an aura of death. The deeper he went, the more aura of death he would feel. Worried that Gui Zhi wouldn't be able to take it, he took off his clothes and let the Gui Zhi wear.

Fang Zishu's unwavering gaze made Gui Zhi unable to reject it. He obediently put it on, and the temperature of the outer coat made Gui Qi's heart feel as if it was on fire. The chilliness instantly disappeared.

His steps never stopped, and after half a quarter of an hour, he finally walked out of the perimeter of the cliff. His field of vision became even wider, but Fang Zhoushu still stood in place, not moving at all.

Gui Qi was curious. Why did he stop? In front of him was the Ten Thousand Caves Mountain. However, when he saw Fang Zishu's serious expression, he seemed to be deep in thought, so he did not inquire.

He turned around and looked at the cliff behind him. Fang Zishu seemed to be lost in thought. The probing feeling that had suddenly appeared was now gone.

"When the aura of death is concentrated, ordinary beasts would find it hard to survive. It must be some strange beast." As Fang Zishu thought of this, he connected that probing experience from before with the strange beasts of the Ten Thousand Caves Mountain.

"Walk behind me."

The words of Fang Zishu had some charm to them, and Gui Zhi obediently followed them. In fact, she also felt a bit uneasy. She had heard all the legends of the Myriad Caves Mountain, and now that she saw it with her own eyes, her heart began to thump loudly.

If it weren't for the fact that he was tightly holding onto the prescription, Gui Qi's legs would have been too weak to walk. It was too dark and quiet here.

The torch was dancing in the air, and the flame was yellow with a tinge of green, indicating that the air was breathable. However, Fang Zhoushu was still walking very slowly. He had to be on guard against any unknown beast.

He was afraid of more than ten thousand, but he had to be careful not to make any mistakes. Fang Zhushu's nerves tensed up, and he started to pay close attention to his surroundings.

Gui Zhi held tightly onto Fang Zhisu's hand, looking nervous as he followed suit.

When he reached a tree, the book stopped and looked at it closely. It was an unusual locust tree. A locust tree was a left wood and right ghost. Its nature was cold and sinister, and it was very easy to provoke ghosts. Judging by the diameter of the trunk, this tree should be at least a hundred years old. Even if a hundred-year-old locust tree was not refined, it could still attract some creatures that were gathered in a place filled with aura of death.

The locust tree had no branches, only a bare trunk that was about six meters high and burnt black …

It should have been burnt by lightning and fire. Thunder and fire were flames formed from direct lightning striking against trees. The temperature at the center was terrifyingly high.

All of a sudden, the flame of the torch disappeared. He pinched the fire velvet, and the fire velvet instantly turned into powder. The fire oil had been burnt out.

Before he could add any more oil to the fire, he saw the fog start to gather around the locust tree. It was as if something was driving it away, but there was no sound.

With a solemn expression and a gaze like a sword, Zi Shu looked like he was about to pierce through the fog and see what was going on.

The surroundings were completely silent, without even the sound of insects. This silence made Gui Zhi involuntarily grip the book tightly.

The fog seemed to have its own consciousness. It stopped three meters away from the locust tree and surrounded the two.

At this time, the book found that there was something wrong with the fog, something big.

With the dagger in his hand, he dug out a piece of wood from the trunk of the locust tree and sniffed at it. Then, he threw it into the thick fog.

Gui Zhi saw that the fog had dispersed from both sides. That piece of wood was lying quietly on the ground, as if it was afraid of something and did not dare to approach.

Seeing this, Fang Zishu frowned. He now knew the reason why the Ten Thousand Caves Mountain was so hard to enter.

This was not a fog at all, but a very small insect. It was so small that the naked eye couldn't see it, and when it moved together, it would become a fog. The more fog it had, the thicker it would become.

Because it was shaped like a fog, this insect had a very popular name, Fog Worm. Don't underestimate this bug. One may not be able to kill you, but don't forget that they are a group activity.

Under the attack of such a huge number of misty bugs, not to mention walking out, there was not even a trace of bones left. This was also the reason why Fang Zhushu did not see even half a corpse as he walked.

"In the fog... Is there something? " asked Gui Zhi weakly. Other than that, she could not think of a second reason.

The action of Fang Zhoushu when he threw the wood was very small. Even if the wind brought forth could blow away the fog, it was impossible for it to blow away such a large area. With that piece of wood as the center, it formed a circle with a diameter of one meter.

"This is a misty insect. It's small in size and its attack power is strong, so it eats people without spitting out their bones. If I didn't read about it in the ancient books, I wouldn't have recognized it."

"Then... We're going to be eaten by them?! " Gui Zhi's voice was laced with tears. It was about to end just like that. Indeed, happiness was only temporary.

Seeing the tears rolling down Gui Zhi's face, Fang Zishu felt a touch of tenderness in his heart. He reached out his hand to wipe away the tears, "Silly girl, if they had wanted to eat, they would have already done so. We're standing here, and they wouldn't dare to come over."

With that, he wrapped some cloth around the torch, poured some oil on it, and lit it up.

With great speed, Fang Zishu reached out his torch into the thick fog, and suddenly, crackling sounds of explosions rang out. The sounds combined together were like firecrackers, but very quickly, the misty bugs left the range of the flames and the sounds disappeared.

It suddenly appeared and disappeared. It only lasted a second. Gui Zhi didn't even have the time to react before his eyes were wide open.

He retrieved the torch and handed the recipe to Gui Zhi, telling her to keep it safe. He then took out his dagger and stabbed it into the trunk of the locust tree. He then started to lift the dagger from the bottom to the top while he continued to dig at the trunk.