"This wall of ice hasn't melted in ten months, and I don't know if it will open a hole tomorrow night, when the moonlight shines into the hole."

Muji lowered his voice as he spoke, and his echo echoed through the tunnel, but it sounded like a low hum that made my eardrums vibrate.

I took the torch again and looked ahead, and I saw that there was a quiet aqua blue in the place where the reflection appeared, yes, it was not a mirror, but a flat wall of ice.

When I came to the ice wall, I tried the temperature on the ice, and it was very cold, estimated to be about minus 30 degrees, but the temperature in the tunnel was not so low.

I asked Muji, "How is this ice formed?" ”

Mu Ji shook his head: "No one knows, in fact, the temperature in the ghost cave is not too low, only the road connected to the tunnel is frozen all year round. ”

I knocked on the ice twice more, and there was a muffled noise.

"How thick is this wall of ice?" I asked Muji.

Mu Ji frowned: "It is estimated that it is more than a hundred meters." ”

So thick? I'm afraid it's hard to chisel it by chiseling alone.

I was worried in my heart, and Mu Ji suddenly said, "I've heard about you." ”

I turned my head and looked at Mu Ji with a puzzled look.

Mu Ji smiled at me: "Last night, Niu Ge came to me, and he told me everything about you." ”

I returned a smile and asked, "Will this ice wall melt tomorrow night?" ”

Mu Ji shook his head: "It's hard to say, it has not shown any signs of melting in the past ten months, tomorrow night, if the moonlight can shine in, maybe there is a possibility of melting, if the moonlight does not come in, then it will have to wait for another three months." ”

I understood the meaning of these words and asked Muji, "In other words, the ice wall here should have melted once three months ago, right?" ”

Mu Ji nodded: "Before, the ice wall would melt every three and a half months. Since this year, every time the moonlight should have shone into the ghost cave, the sky was very overcast, and the night sky was full of dark clouds, and the light could not shine in at all. ”

"What kind of clouds?"

Muji didn't understand what I meant, "Huh? He said, "That's it...... What kind of clouds are the clouds in the sky? ”

I said, "Isn't that cloud pressed very low, and it's very small, just in the middle of the moonlight and the ghost hole?" ”

Mu Ji pondered for a moment, and then his eyes widened: "When you say that, it seems to be true." ”

In this way, what floated in the night sky was not a dark cloud at all, but a cloud of pure yin qi that had transformed into a concrete form.

I was pondering what I was doing when I suddenly felt a tingling pain in my waist, and the tengu didn't know when it lay on top of me again, its sharp claws like sharp knives, piercing through one of my faces, and piercing directly into my flesh.

I grinned in pain and pushed the tengu away.

After I pushed it away, it stopped coming forward, but just sat on the ground and wagged its tail at the hammer, and its mouth was still grunting.

Seeing Tengu's appearance, Mu Ji couldn't help laughing: "Xiaotian really likes your cat, and in the past two days, I've been tired of being with it every day." ”

I asked Muji, "When did the hammer come to the ghost cave?" ”

"Is it called a hammer? What a special name. Probably the night before yesterday, I went to the forest outside the cave to relieve myself, and when I came back, I found such a cat lying on the bed, hehe, your cat doesn't recognize life at all, it lived here for two days, I almost thought it was the owner here. ”

I looked up at the hammer above my head, and as if sensing my gaze, the hammer jumped straight from my head to the ground, and then ran towards the stone hall, and when Tengu saw that the hammer was gone, he followed him out.

"By the way, I brought you here, mainly to show you this."

As he spoke, Mu Ji leaned over slightly, pointing to the lower left corner of the ice wall, and I immediately moved the torch over, and when I looked through the clean ice, I saw a black round hole pressed under the ice wall.

Mu Ji leaned over, raised his chin towards the entrance of the cave, and said to me, "This hole has only recently appeared. ”

"Lately?"

"I only found this hole about a month ago when I was looking at the ice wall, which used to be hard stone underneath the wall and there was no hole."

In other words, after the ice wall was formed, something moved under the wall, and such a hole was excavated.

I think that's what Muji meant.

I asked Mu Ji, "Are there any other anomalies in the ghost cave these days?" ”

As I spoke, I took out my fangs and planned to chisel a part of the ice wall to see what was in the hole.

Mu Ji patted me on the shoulder: "The ice wall can't be chiseled. Once you've chiseled the ice wall, the moonlight won't shine in tomorrow night. ”

I don't know what the basis and principle of Mu Ji's statement is, but since people said so, I had no choice but to put away my teeth and stand up silently.

I heard Mu Ji say again: "For more than a month, the vegetation on Laowu Mountain has shown signs of withering, and the left peak of Laowu Mountain has also been shrouded in fog. In the past, there was only spring on Laowu Mountain, and there was never fog on the left peak. ”

I took out the wooden box that Awu had given me earlier from my backpack and handed it to Muji: "Awu almost forgot the letter to you just now, if it is not convenient to open it in front of Shi'er and Yoda, read it here." ”

After Mu Ji took the wooden box, I handed him the torch again, and then I was about to go out of the tunnel, but before I could walk a few steps, Mu Ji behind me suddenly asked: "Are you familiar with Ah Wu?" ”

"It's not familiar, I've only seen two or three sides."

As I spoke, I patted Li Huaishan on the shoulder and led him towards the stone hall.

Muji didn't speak, and as I approached the outer edge of the firelit area, I heard a small sound behind me as the wooden box was opened.

Speaking of which, the emotional entanglement between Awu and Muji and Brother Niu has nothing to do with me, and I have never been a nosy person, but this time, I have the heart to help them, and this idea is even as strong as I want to help the residents of the village.

Because I know that whether it is Awu, Brother Niu, or other people in the village, there is a huge mountain in their hearts, and I used to be a person with a lot of hearts, and maybe I still am, so I don't want others to be like me, and I know that feeling is very uncomfortable.

When Li Huaishan and I came to the stone hall in the dark, Yoda and Shi'er had already prepared food, and Xiao Heitian had been revolving around the hammer, but the hammer was still the same, just lying on the table, lukewarm to Xiao Heitian.

I smiled at him and went to the entrance of the cave, carefully opened the curtain, and looked out of the cave.

The fog has dissipated, the moonlight spreads the earth, and there is a very high mountain peak in the southwest direction of the ghost cave, the outline of the peak is a little blurred, as if there is water vapor steaming there, I know, it must be the left peak in Mu Ji's mouth, the line of sight through the left peak, just in time to see the bright moon, if I guess wrong, tomorrow night, the dark clouds will rise there.

I hope that the formation recorded in Lu Ban's book can bring us a cloudless night sky tomorrow.

After eating, everyone rested early, and Mu Ji still held the wooden box that Awu gave him when he came out of the tunnel.

I would have asked him how long it would take for the wall of ice to re-condense after it melted, but I was afraid that the wall of ice would soon re-condense until three months later, and then all those who entered it would starve to death in it.

But Muji looked depressed when he came out of the tunnel, and I was embarrassed to ask him.

At noon the next day, I sprinkled some cinnabar at the entrance of the ghost cave, and asked Li Huaishan to go to the mountains to pick up some dry wooden branches and come back, and simply tied a small raft with these dry branches, pressed it on the cinnabar like a coffin board, and then dug a very shallow ditch around the small raft and sprinkled the wood ashes left over from the fire last night.

This formation...... Or this technique, in the "Book of Luban" is called "Tongyue Sacrifice Wine", it is said that Lu Ban encountered rainy weather when building the mausoleum, in order not to let the dark clouds and heavy rain affect the progress of the project, and created a prayer technique.

Praying for sunshine is relative to praying for rain.

However, this technique has a very limited effect, and can only make the weather clear for a short time, but it cannot prevent large-scale flooding.

But even so, I still think that this technique may not be as reliable as the book says, after all, to let the rainy day clear, it is not as simple as dispersing a few dark clouds, and even to change the flow of the atmosphere, to say a little deeper, it is against the heavens, the principles of heaven.

I have been in my house for more than a year, and every technique I have learned is in accordance with the nature of heaven, including the sixty-four hexagrams passed down to me by the head of the Empty Cloud Dao, which is also a manifestation of the nature of the Heavenly Dao. Even the classics of the old family say that there is no such thing as a technique that goes against the principles of heaven.

With all the arrangements in place, the next step is to wait anxiously.

For an entire afternoon, the people huddled in the stone hall did not say a word, and there was a silent anxiety in the air.

At six o'clock in the evening, the moon began to rise in the east, and a pure yin qi slowly gathered on the peak of the left peak, and I blessed my vision with the technique of fixing the mind, and in the quicksand of the Qi Sea, I saw that this yin qi was slowly spiraling towards the sky, gathering little by little at a place of 100 meters from the top of the left peak.

A few hours later, the bright moon moved westward, and the light purple mist around the ghost cave began to fade at an extremely fast speed, and the yin qi entrenched above the left peak gradually took on a form similar to a dark cloud.

Mu Ji came out of the cave no sooner or later, he came to me, looked carefully at the dark clouds slowly surging on the side of Zuofeng, and said to me in a low voice, "The moonlight will not come in tonight. ”

I made a silencing gesture to him, signaling him not to speak.

(End of chapter)