The cave is completely excavated by hand, and the rules are neatly undug at a glance, and it is not at all arbitrary, it seems to be the entrance and exit of a project, and there are many traces of drag on the smooth rock wall.

There was no dust in the cave, presumably because of the ventilation, Lu Yunfan climbed forward with a flashlight for a long time and did not see the exit, and gradually he couldn't even feel the air flow.

"What's going on? There's an entrance to the air, and if it's an exit, it's supposed to be windy all the time, is it because the wind has stopped?"

Lu Yunfan shook his head and denied this speculation, the rope was not long enough after climbing more than ten meters, so Lu Yunfan was now just finding the direction with his senses, and since entering the cave, he had been crawling forward, and he didn't think it was too far away.

"The hole is straight, so where does the wind disappear?"

I couldn't figure out the joints, so I had to keep moving forward, but after crawling out for a few minutes again, the hole in front of me was already blocked.

No, to be precise, the cave was dug here and did not continue to dig forward, and the light of the flashlight shone on the rock in front of it, where there were only some traces of excavation, and it was scattered in a haphazard manner.

This surprised Lu Yunfan a lot, he didn't find the source of the wind, and he didn't see the kid again, but the hole came to an end, what does this mean?

It shows that there must be other forks in the direction he is heading!

Lu Yunfan didn't say a word, turned around and crawled back, he had also read tomb robbery novels, although he was confused, but he also understood a little, this situation should be caused by the fork in the road that confuses people, and now only by carefully going back to find the fork in the road, and then marking them separately, can he find the way back little by little.

I had a plan in my heart, and I forcibly suppressed the sudden panic in my heart, and touched back inch by inch along the way I came.

climbed forward more than ten meters again, and sure enough, he found another fork in the smooth cave, but this fork was in the direction of going back, which suddenly made Lu Yunfan's scalp tingle, and a strange trap pattern also appeared in his mind.

Advancing in the dark, it is easy to lose the original direction, so if there is a small angle deviation, it is impossible to detect it at all, and a small deviation of fifteen degrees is very easy to dilute the perception with a distance of more than ten meters.

Draw a mark on the rock wall with a thin knife and continue walking.

Coincidentally, more than ten meters later, he encountered the same fork in the road again.

"Damn, how do you get out of here?" he finally felt a little annoyed at his recklessness, although he knew what kind of trap he had fallen into, but it was always difficult for a person to get out, and if someone helped, maybe he could use a rope as a measure.

The depth of the cul-de-sac is not very deep, and their parachute lines are adequate.

"Lu Yunfan, where are you?"

Just when he didn't know what to do, suddenly there was a shout from behind, this voice was made by Lin Qiudu, although there was a little change of voice echoing in the cave, but he could still distinguish it.

"It's saved!" Lu Yunfan responded immediately, and at the same time quickly turned around and crawled backwards, but when he encountered a dead end again, Lin Qiudu's voice became quieter, and the direction became behind him.

"Fuck your uncle, what the hell is this place?Is it a labyrinth?" Lu Yunfan was irritable, so he simply sat down, this place seemed to be still a ring, and as long as there was a sound, the sound would not only spread along the normal channel, but also enter a dead end, and then be echoed back, making people mistakenly think that the sound was coming from behind him.

It is not possible to rely on sound, although it is feasible to make a mark, but before entering the fork in the road, you don't know if the fork in the road is a dead end or a normal passage, so the markings you make will not help.

In the chaotic cave, the sound seemed to have entered an infinite loop, and Lin Qiudu's voice reached his ears over and over again, making him even more uncalm.

"Maybe it can be like this!" After closing his eyes and pondering, Lu Yunfan thought of a possible solution, so he returned again and kept moving forward until he encountered another fork in the road.

He wanted to keep the flashlight with him, so he put Lin Miao's knife at the fork, pointed the tip of the knife at one of them, and he crawled into the other hole.

The depth of the dead end is only six or seven meters, as long as he crawls forward six or seven meters, whether it is a dead end or not, he can return the same way, and the distance of six or seven meters can still identify the direction, even if there is a slight angle, he can see the thin knife again when he turns his head.

However, it backfired, after climbing six or seven meters, when he turned his head again, it made him gasp, there was nothing on the empty cave floor, and the knife was gone.

"Calm down, calm down, the more you have to stay calm at this time, the more you panic, the more you will be wasted!"

There is no dead end ahead, which means that the road is correct, and now that the knife is gone, does it mean that the distance of seven meters has changed the angle? Or as long as you retreat, you will not return to the original road? Can you go back at this moment?

Lu Yunfan fell into contradictions.

There was a slight sound of talking in front of him, and Lu Yunfan held his breath and carefully discerned.

"Qiudu, is it really a ghost hitting the wall?" turned out to be Lin Miao's voice.

"I just read it from the book, but in fact, there is no ghost hitting the wall, it is just a design that confuses people's perception and eyes. Lin Qiudu was quite calm, analyzing in a low voice, but his voice was getting quieter and quieter, as if they were slowly moving away from him.

Lu Yunfan tried to calm himself down, and from the judgment just now, he was sure that it was basically impossible to find it by following the sound.

Such a ring trap, normally speaking, there will be an entrance and an exit, but digging such a trap in the mountain is definitely not someone who is idle and digging to play, maybe it is to hide something, maybe it is an ancient tomb.

Therefore, there must be another road, which is extremely hidden, to the designer's final destination.

"Today, Lao Tzu will break this ghost place for you, no matter what you are trying to hide, let Lao Tzu find it, I must destroy it for you, damn!"

Lu Yunfan seemed to have found a way, simply turned off the flashlight, neither turned around nor forward, but knelt down like this and slowly retreated backwards.

There is no light, no reference, it is completely by virtue of the most instinctive perception, a little bit of retreat, a distance of seven meters, it is estimated that there is always a gap in the dark, until Lu Yunfan's foot kicked something, he turned on the flashlight again, and on the ground was Lin Miao's thin knife.

Lu Yunfan was overjoyed, closed his eyes, and continued to retreat, sometimes touching the rock wall, he still didn't look back, just adjusted the direction and continued to retreat.

Finally, he felt a glimmer of light, opened his eyes and looked around, the light seemed to shine from the rock wall, it was pitch black in front of him, and it was also pitch black behind him, but the light of the flashlight appeared very strangely.

"Lin Da? Miao Miao?"

Lu Yunfan tried to ask.

"Lu Yunfan, where are you?" The light of the flashlight suddenly disappeared, but the voices of the two were very anxious, as if they were around, but they couldn't see it at all.

"You guys, turn off the flashlight, walk forward with your eyes closed, turn on the flashlight every three steps, but don't open your eyes. ”

"Why?"

"Don't ask so much, now is the only way for us to meet!"

Feeling the distance getting closer and closer, the breathing sound of the two slowly became more and more audible, Lu Yunfan looked at the place where the pillar of light appeared just now, and flashed again, and the light actually appeared a few meters in front of him.

He didn't dare to move, because the two seemed to be getting closer and closer to him, and after a few seconds, the light of the flashlight finally appeared in front of his eyes completely, and the strong light made him really unable to open his eyes, and the two of them seemed to feel Lu Yunfan's presence, no longer moving, they both opened their eyes, and saw Lu Yunfan strangely towards their right front.

"You guys, did you really come out of the stone?" Lu Yunfan couldn't help but ask.

"Xiao Fan!" Lin Miao didn't answer, so he pounced directly, holding his head and rubbing his tears.

"You better wait and then hug it, it's important to go out, it's not a short time since we came in, Zhuang Zhuang and Xiao Qi don't know what to do in a hurry?"

Lu Yunfan slowly pushed away Lin Miao, who was overly emotional, wiped the tears on her face for her, comforted her a few more words, and asked Lin Qiudu, "Did you bring a rope?"

"I brought one, and the rest are used outside, what do you want the rope for?" Lin Qiudu asked puzzled.

"Of course I'm trying to find a way to get out, give it to me!" Lin Qiudu took out the rope from his arms and handed it to Lu Yunfan, Lu Yunfan did not act immediately, but touched the place where they appeared with a flashlight, it turned out that the rock wall of the fork was a raised piece, and the light of the flashlight hit it, which could diffuse some light just right, and hide the correct way, no matter from which angle, as long as there was a light source, this fork would definitely not be found.

"The guy who designed this cave is a great man, no wonder I seem to miss some places in either direction, and now it seems that there must be a way out of the hidden hole, so we will follow this path back. Lin Da, you lean to the left, carefully look for the fork in the road, Miao Miao is on the right. ”

The three of them tied ropes to their hands and climbed along the circuit, and every seven or eight meters they would find the same forks, some on the left and some on the right.

After some temptation, almost every road that led them straight was a dead end, Lu Yunfan had been waiting for the two of them to explore at the fork, and in the same way, when they turned around to look for it, they could only see one passage, and the road they could see was not the way they came.

Their true path has been hidden in the dark.

After a short time, they felt the wind blowing again, and a few people were happy, and they walked all the way to the windy entrance of the cave, and the entrance of the cave gradually became no longer low, and several people were able to stand up and walk.

The rock wall on the left side of him faded away, replaced by a huge cavern, as if the entire mountain had been hollowed out.

This suddenly enlightened scene made several people exclaim.