"We did go around in a circle and came back." Xiaoya said lightly.

"How is that possible? We have been gone all afternoon." Old Wu said.

Xiaoya shook her head secretly after hearing this. She could no longer tell the difference between day and night. The afternoon that Lao Wu mentioned might be that the sun had just risen. She stretched out her hand and pointed to the bottom of the cave.

When Old Wu looked up, his heart felt cold. There was a dark hole above his head, as if a mouth was about to swallow them all. It was not the same road they had just walked.

"A ghost hits a wall, we meet a ghost hits a wall." Old Wu said

"what to do."

"I don't know. If you want to choose another path, I will never stop you this time."

"Okay, please stop making fun of me. Brother, I was wrong." Old Wu said.

"Do you think it was the demon moth that just caused the ghost to deliberately block the exit, leaving us trapped here to death?" Xiaoya said.

"Yes, he must be so good at it. I really regret not vomiting them to death." Lao Wu agreed.

"If it's okay like this, then it means that this passage does have an exit. I'm afraid that if it wasn't like this, we would really be trapped here alive."

"What's the meaning?."

"Why do I feel like I have fallen into a well, and the manhole cover has been sealed."

Xiaoya's body trembled and she said, "Why do I feel the same way?".

"I heard from my second uncle that if you encounter a ghost and hit a wall, you can walk out by wearing your shoes backwards."

"Okay, let's walk again. I hope it's a ghost fighting against the wall with Old Wu."

Old Wu was very excited after hearing Xie Fei's words. He knelt down and untied his shoelaces.

"What are you doing?" Xie Fei asked

"Put your shoes on backwards."

Xie Fei shook his head helplessly. He wanted to say something but couldn't. "You... do whatever you want."

Old Wu was still leading the way, but this time Xie Fei carefully counted his steps and kept his eyes on the changes on the wall.

After a while, about two hours, Xie Fei hurriedly called to Lao Wu. This time he clearly felt that the wall was different.

"What's wrong?" Old Wu asked

Xie Fei pointed at the wall. Old Wu took a look and understood immediately. Although he didn't want to admit it, the fact was so cruel. There was a clear distinction between natural and artificial on the wall.

"Are we back again?"

Xie Fei was silent, but it didn't feel like he was back to the starting point.

Old Wu looked up and said, "Oh my God, there's really a fucking hole."

Xiaoya raised her head, but there was a dark hole on top of her head opening towards them.

Old Wu's heart was completely cold, and he remembered stamping his feet on the spot, "What should I do?"

"No, Xiaoya seems to have discovered something."

"What's wrong?" Xie Fei asked

"This is not the original place. When we came, the natural cave was in front and the artificially dug one was in the back..."

"What's wrong? Is there anything strange about this?"

"Of course." Xiaoya continued, "If we return to the starting point, that is, the natural wall will be in front and the artificial wall will be behind us. If you look at it now, the front of us is obviously excavated manually."

Xie Fei patted his head and finally thought about it. He had made such a stupid mistake. The mirror law is like a person dressing in front of the mirror. What you see is the opposite of yourself. In other words, he has not returned to the mirror.

The origin, but to the opposite point of the origin.

"Then how do you explain the holes on our heads?" Lao Wu asked

Xie Fei looked up and saw that it was so dark that he couldn't see any difference. Suddenly he seemed to remember something and hurriedly asked, "Didn't you leave a mark at the bottom of the cave? Look and see where you left it."

Old Wu took the lamp close to the wall, but it was empty. There was no trace on the wall. Old Wu finally felt relieved. He was smiling excitedly, and the wrinkles on his face were like those of the female corpse just now.

spell.

"Why, let's keep moving forward."

Xie Fei nodded, "However, I have to leave a mark here." After saying that, he tore off his clothes. He heard a "tsk" sound and a piece of clothes had been torn off. He found another stone in the ground.

, follow the black hole above your head, and press directly below the hole.

Old Wu was walking in front, his face no longer as depressed as when he came. He suddenly remembered what his local leader said: 'You are not afraid of problems, you are just afraid of not knowing where the problems are.' Although he looked at the leader at the time

Face, when I heard this sentence, I felt it was bullshit. But now that I think of this sentence, I feel happy. It turns out that all leaders are still philosophers.

After a while, Old Wu suddenly turned around and glanced at Xie Fei.

"What's wrong? Are we here?" Xie Fei asked

"No."

"Then what's wrong with you?"

"I'm a little··."

"There's something wrong. I want to pee in the back."

"I'm not peeing, I'm just a little hungry again."

"You're a foodie, no wonder that sorghum grows so well."

When Xiaoya heard this, she remembered what her second uncle said to Lao Wu outside the cave, and couldn't help but burst out laughing.

Lao Wu saw that Xiaoya was also laughing and immediately became embarrassed. He muttered in a low voice, "I eat mine. What does it have to do with sorghum?"

Xie Fei took off his bag, took a compressed biscuit and threw it to him. Old Wu tore it open and chewed it in his mouth. But before he chewed it twice, he said "Yeah." "We are here."

Xie Fei and Xiaoya both gathered around and saw Lao Wu holding a compressed biscuit in one hand and pointing to the wall with the other. There was also a fresh arrow mark on the wall.

"How's it going? Is it a ghost hitting the wall?"

Old Wu looked down at his feet. His shoes were still dragging on his feet, and he shook his head.

"Why do I feel like we are trapped in a bowl? Although there is a layer of porcelain between the inside and outside of the circle, we can't get out. We can only go around and around in this circle, forever.

I can’t pierce that membrane either.” Xiaoya lowered her head and said.

"No, one lap but several laps."

"What? Why can't I understand it well?" Lao Wu asked.

"You don't quite understand, or you just don't understand." Xie Fei rolled his eyes at Old Wu. "Let's put it this way, I just counted, we walked for about five hours, assuming we take one step every second, then

That's eighteen thousand steps. Assuming that each step is half a meter, it is a distance of nine thousand meters. If we just go around a circle and return to the end point, the diameter of this circle is about three thousand meters. I just said where we are.

On this plane, the diameter of the mountain is less than 2,500 meters, which means that the circle we are walking has exceeded the straight-line distance of the plane, and a normal person takes two steps per second, so the result is

We definitely missed more than one lap."

Xiaoya understood a little after listening to it, but Lao Wu was still confused and confused. He heard Xie Fei say a few kilometers. Xie Fei had no choice but to squat on the ground and draw a circle, holding hands.

I taught it to Lao Wu, but after talking for a while, Lao Wu still didn't understand. Xiaoya also followed and even introduced the π learned in junior high school. Finally, Lao Wu patted his head and said something that seemed to understand.
Chapter completed!