After more than ten years on the mountain, you will become invincible when you come down.

As they walked, they picked elixirs and fruits, and time passed very quickly.

Suddenly Lu Feng, who was walking in front, stopped again.

"We are back where we were. The broken branches and the newly tied cloth strips are all still there..." Lu Feng said.

"The pit where I just peed is still there, and the air is still filled with my smell..." Zhao Qiang said, staring at his pit.

"So, we are back to where we were..." Xiaobai said in surprise.

"So, maybe we are going around somewhere and keep going in circles. We have to get out of this circle. Otherwise, we will keep going around in circles and never get out..." Sister Lan analyzed.

"You are right, but now how we get out of this circle has become the biggest problem..." Lu Feng said with a frown.

"Could it be that what we originally walked was not a straight line, but a curve? It's just that we thought we were walking in a straight line..." Xiaobai said.

"It's not impossible. It's like a ghost hitting a wall. When you can't tell the direction and feel vague about yourself, you will keep spinning in circles. Because the essence of our movement is circular motion, so we keep going around. It's not impossible to circle..." Lu Feng said.

"Then what should we do? The ghost hitting the wall you mentioned is quite similar to our current situation. Similarly, we can't tell the direction in this foggy canyon..." Zhao Qiang said.

"How about we find a way to disperse this fog? As long as the fog is dispersed, won't we be able to clearly distinguish the direction?" Xiaobai said.

"Your idea is a good one, but if the fog in the Misty Grand Canyon could be dissipated so easily, there wouldn't be so many people lost here..." Sister Lan struck.

"Then what should we do? We should find a way, right? We can't just keep spinning around here, right?" Xiaobai said.

Lu Feng looked up at the sky, wanting to see if there was the sun or the moon and stars as a reference, but to his disappointment, even the sky was completely white, and there was no so-called sun at all. Or the moon and stars...

"Of course we can't sit here and wait for death. Now we can only look for reference objects to try..." Lu Feng said.

"Reference object? But I found that many places in this misty canyon are very similar. Our visibility is not high, so how can we find a reference object?" Sister Lan asked doubtfully.

"Indeed, this is a headache. Even if we find the reference object, we can't see clearly from a few meters away..." Xiaobai said.

Lu Feng's eyes lit up and he said excitedly, "Since it's not clear a few meters away, let's find more reference objects and fold more branches together, so that we have a reference object..."

"What are you breaking branches for? What's the use?" Zhao Qiang asked in confusion.

Xiaobai and Sister Lan also looked at Lu Feng with doubtful eyes, feeling very puzzled...

"Of course it is useful, and it is very useful. Let's break some more branches together. You will know in a moment..." Lu Feng said.

Just do it and they didn't ask any more questions. After all, they had no other better way.

No matter how many doubts I had in my heart, I started to fold the branches...

Fortunately, several people have storage rings, and broken branches can be placed in the storage rings. A large number of branches can be placed at one time...

Lu Feng felt that it was almost enough, so he said, "Okay, let's break this much for now. Aren't you curious why I asked you to break branches?"

"Why?" Xiaobai asked.

"Three points form a straight line. Do you know this principle?" Lu Feng asked.

Several people looked at each other in confusion, and finally shook their heads.

"What is the principle of this? Which technique is in it, is it very powerful?" Zhao Qiang asked in confusion.

Lu Feng's face was covered with black lines. It seems that nine-year compulsory education is not universal in the Kunlun Secret Realm. These people are born with only reading and writing. As long as they can read and write, they can start to practice...

There is no such important thing as nine-year compulsory education here, only cultivation...

"This is not a skill, this is a geometric principle..."

"What is the principle of geometry? Who is geometry?" Xiaobai asked doubtfully.

"Ahem... It doesn't matter who the geometry is. What's important is that if there are three points in space, then the connection between them will form a straight line, so we can use this principle to create a reference object... " Lu Feng explained.

The more the three of them listened, the more confused they became. Their eyes were full of confusion, and they kept scratching their heads, not understanding...

"Why are you explaining so much to me? You just need to follow it. Don't you think we are spinning in circles? The circles are curves. Now we insert a branch every two meters, and then look at the nearest Three branches, as long as they are in a straight line, then we must be walking in a straight line..." Lu Feng said.

Lu Feng was still afraid that they didn't understand, so he taught him step by step...

There is no way to insert a branch every two meters because the visibility is only about five meters...

Several people listened to Lu Feng's explanation and followed Lu Feng's instructions...

"Brother Lu, why are you so good? You know everything. According to your method, it's really a straight line..." Xiaobai praised.

"I have gained a lot of experience. Why didn't anyone teach me about forming a straight line between three points? If someone had taught me earlier, I would have been able to think of this method..." Zhao Qiang said.

"In our place, elementary school students know everything. It's not difficult..." Lu Feng said casually.

"What is a primary school student? What is the principle of this?" Sister Lan asked doubtfully.

"Yes, what is a primary school student? So this primary school student is better than me?" Xiaobai asked.

"Sigh... I'm not as good as a primary school student. This primary school student must be very good, right?" Zhao Qiang sighed.

Lu Feng successfully aroused their eagerness to learn. Whenever it came to their knowledge blind spots, he had to ask...

Lu Feng also said with a black line on his face, "It's not important, it's not important. Now we only need to fix this straight line. Everything else is not important..."

Because a branch had to be inserted every two meters, the walk this time was much slower than before...

But no one complained, and instead worked harder and harder.

Not only did I learn something new, but I also had hope in my heart.

According to previous guesses, they had been walking in a curve. If they were walking in circles, then this time they would be able to walk out of the Misty Canyon smoothly by walking in a straight line...