According to Yao Yilan's explanation, the reason why Tang Ding had an error was that he took an arc when he returned. But even if it is an arc, it seems that the error is too small. However, according to her speculation, Tang Ding does not necessarily walk in a straight line when he goes, because if this is a cone, then going forward is equivalent to climbing, although the angle of this slope is very small, but the uphill is the easiest place to turn, because walking in a straight line uphill is the most laborious, and people unconsciously take the curve in order to save effort. Even with a person who controls himself so accurately, he can only control his cadence and stride distance, but he can't control the direction he goes, because the direction is not controlled by someone.

Because there is actually an error in this direction.

People's judgment of direction does not come from the body, but from the consciousness. For example, if we see a house facing north and south, we can easily judge north and south. If the house is facing southeast, we can easily think of southeast as south.

Tang Ding and Yao Yilan came to the same conclusion, which is why the ghost hit the wall.

Moreover, it is easy to explain the formation of the cone of the ghost hitting the wall. This cone is easier to form than other shapes, for example, a bay of water flows out of a hole, that is, it is a vortex shape, although the shape of the inlet created by this vortex is not obvious, but this inlet must form a cone, but the angle is very small.

That being said, if you really want to form a cone like this, there must be a lot of coincidences.

"It's a good explanation, but I still have a question. Tang Ding said.

"What's the question? Oh, I see, where did you mean the sea went?" Yao Yilan was an extremely quick person, Tang Ding just said the beginning, and she knew the end immediately.

"Yes, the problem of sea water does not make sense. If, according to our reasoning, we are now at the bottom of the cone, then the sea water that has just fallen from the sky should be gathered here, but what about the water? Of course, there is also a possibility that the water was originally here, but there is a hole near it that leaks, and even if it leaks, it can't be so fast!"

"If it's sand, it's possible to penetrate quickly, but it doesn't seem to be sandy here. ”

"Don't look at it, this is the five-flower rammed earth, I've seen it a long time ago. Tang Ding said.

"Five-flower rammed earth? Are you saying that this is a five-flower rammed earth that can't be soaked in water and can't be smashed by a hammer?" Yao Yilan asked in surprise, "That's right, if it's five-flower rammed earth, if the water flows away for a short time, then this place will indeed not be muddy." ”

"Since it's a five-flower rammed earth, how can there be water seepage here?"

"This is the five-flower rammed earth, then there must be a place here that is not the five-flower rammed earth, or there is a drainage tank or drainage ditch here, although it is not big, but it can also allow the water to drain away. ”

Hearing Yao Yilan's reminder, Tang Ding immediately reacted, "You're right, your reminder is too right, let's look around here, there should be a drainage ditch." ”

said that they would look for it, Tang Ding, Ming Miaohui, and Yao Yilan looked around, and sure enough, they found a quick gravel ground a hundred meters away from them.

However, the three of them did not appear first on the gravel floor, but first appeared on the missing flashlight.

Here is the low point, where the flashlight is left with the flow of water.

Tang Ding dug down four or five meters, and now there is a dark passage under the gravel ground. However, all of this secret passage is buried by sand, but the traces of the water flow are still quite obvious, because the sand is very wet, and you can hold the water out with your hands.

Tang Ding finally unlocked the secret of the ghost hitting the wall.

"Let's go, this should be where Xuanwu is. Tang Ding waved his hand and asked Ming Miaohui and Yao Yilan to follow him.

It's just that there was some sand and gravel when they went down, but after Tang Ding and the three of them entered this dark passage, there was no sand and gravel here, only the damp secret passage remained.

"Tang Ding, I feel weird here?" Yao Yilan said.

"Oh?

"You don't seem to have any creatures here?"

"It's normal that there are no creatures, it took a lot of effort for us to get here, and it was the cracking mechanism that came in, and this mechanism is not something that everyone can crack. So there are no creatures here, and it's normal. ”

"Yes, I know those creatures won't be able to crack the mechanism, but we didn't come in with a shapeshifter, but with a lot of seawater in the coral cave, and there were no fish, shrimp, crabs or anything like that in the water, isn't it strange?"

Regarding the animal, Tang Ding can explain it clearly, because in the coral cave, there is a fierce aura, although this evil aura is very subtle, but it is dense and horizontal, ordinary animals are extremely sensitive to this evil aura, and it is normal to dare not come in. But Tang Ding thought deeper. But he didn't tell Yao Yilan. Because he can't explain this matter himself, the sea water in the coral cave is not normal for animals, but there is no seabed plants, which is a little weird, it stands to reason that animals can sense the terrible evil, but plants can't sense evil, so why are there no plants here?

Why did Tang Ding and Yao Yilan make sure that there was not a single animal or plant here? Because there were no shadows of animals or plants in the sand and gravel they came down to the secret passage before, and if there were animals and plants in the water, then these sand and gravel were the best filters. Plants and animals are filtered out.

"This secret path is too weird, we speculated that the formation of this seven-star ferociousness is not man-made, but naturally formed, but you look at this dark way, the axe and chisel traces of this way, this is obviously man-made. ”

Yao Yilan was holding a flashlight, the one that was lost before, she had just taken a closer look at the wall of this dark passage, and now there were traces on it, although it was not very smooth, but anyone could see that this was definitely not a natural formation.

"Well, it looks man-made, but it doesn't have to be man-made, maybe it was a beast. ”

"Beasts, how is it possible, can beasts open out and secretly say?" Yao Yilan absolutely didn't believe it. But this is also related to her experience, Yao Yilan's experience is relatively simple, although she followed Ming Miaohui to learn the Tao, but she didn't have Tang Ding's experience, and she hadn't seen any terrifying beasts. So for her, an animal can open up a fairly regular dark passage, which is simply impossible for her understanding.

"Of course, I've seen a cave that is a hundred times more regular than this, with a diameter of at least a few tens of meters and a depth of several hundred meters, with round walls and no edges and corners, and a round pillar in the middle. "Tang Ding is talking about the divine beast Candle Nine Yin in the Mausoleum of the Red Emperor of Nurha in the Northeast. At that time, even the well-informed Tang Ding was deeply shocked.

"Well, wouldn't it? I don't believe it. ”

"Don't believe it, the place I'm talking about is in the northeast of you, and there is a behemoth-like beast in that deep cave, which can call the wind and rain. ”

"The more I say it, the more outrageous it becomes, I don't believe it. What is the name of the beast? It can't be a nameless beast, right?"

"I really don't know its name, but I know that it is the candle dragon that appeared in the "Classic of Mountains and Seas", Candle Nine Yin. ”

"I don't believe it, unless I've seen it, or I don't believe it. ”

"Okay, when we get out of here, I can show you there. ”

"Alright, let's settle it. When Yao Yilan heard Tang Ding's words, the corners of her mouth curved slightly, revealing a hint of a smile, but she hid this smile very well and was not seen by anyone.

(End of chapter)

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