The cave is hidden behind a cluster of plants, and it would be hard to spot it if it weren't for the gurgling water.

"When you get into the cave, remember to be as careful as possible, don't talk loudly, and avoid high-pitched sounds." Yun Ya Nuan instructed while tidying up the straw basket and carrying it on his back.

"Got it, this road is so narrow, how can we line up?" Kexin asked, looking at the entrance of the cave.

It is true that the cave looks quite large, but it is occupied by the river, and now the river is over my waist, and it is obviously unreasonable to wade through it.

"I'll take the lead, Maya will follow me, but the heart will be the third, and Diana will be broken." Yun Yanuan thought for a while and said.

These four people, as far as they and Diana have force value, and only he and Diana have weapons, naturally one head and one tail, to protect the safety of the team as much as possible.

"Diana, you take this for the tail lighting!"

Yun Yanuan said, handing over the glowing treasure found in the glowing treasure after burning the human face tree, but Xin Xin said that this was the third eye that Candle Jiuyin had not formed, but no one believed it.

However, the illumination of this thing in the dark room is still okay, and it will not be much worse than the lantern of Yunya Nuan, Diana took this small bulb that is easy to carry, and couldn't help but feel a lot more at ease.

People are like this, they are afraid of the dark and like the light, but they don't know that being in the shadow is the safest.

Yun Ya Nuan held a lantern in his left hand, and held the unsheathed crew saber in his right hand and walked into the cave first, followed by three women, as soon as he walked into the cave, Yun Ya Nuan felt that the cave was even narrower, the path of less than one meter, the side was gurgling water, and it was pitch black all around, and his lantern could not find two meters, it was a dark world.

This feeling is heart-wrenching, and the sound of running water is amplified by the rock wall here, disturbing one's auditory judgment. After walking a few steps, Yun Yanuan stopped, took off his hiking boots, and replaced them with straw sandals, because he found that only his own footsteps were the loudest, and the three of Diana and the three of them walked, only the slight sound of rustling.

After changing to straw sandals, the sound of crackling footsteps disappeared, and the surrounding sounds were much clearer in his ears, and here, he probably relied more on hearing.

The four of them walked close to the rock wall on one side, but they were curious by nature, and by the faint light of the lantern, they carefully observed the surroundings, from the rock wall to the top of their heads, and looked very carefully.

"Devil Six, I feel like this cave was carved out by hand!" Kexin said in a low voice as low as possible.

Even so, the good reverberation of the rock wall made the sound much louder, and even the same question was heard in the distance, which proved that the cave was very well sealed and very deep.

Yun Yanuan touched the rock wall with his hand, and felt that the rock wall was very smooth, without any traces of knives and axes, so he asked: "This cave wall is very smooth, there are no traces of chiseling, how can you say that it is artificial?" ”

Diana also said: "Yes, it is so smooth, it may be that the original water here is very abundant, so it has been washed by the river like this." ”

Ke Xin shook his head and said: "That's not right, if the river washes, the smoothest place should be under our feet, and it should be a concave slow circle, but you see that our feet, although they are also smooth, but deliberately left a small convex and concave surface of matte, which should be non-slip." ”

Yun Yanuan took a closer look, isn't it, the ground seems to be able to make a frosted feeling, so that people don't walk slippery, no wonder it's so wet here, but there is no feeling of slippery feet.

"Not to mention, if you look closely, this place really looks like it was hand-hewn, this ancient person is very powerful, he can chisel such a hard stone so smooth and uniform ten thousand years ago." Yun Yanuan exclaimed.

From the entrance, the width of the area has not changed, and it is very uniform and the size is standard.

"We've been walking uphill, and it seems that the altitude in the cliff is very high!" Ke Xin picked out a piece of scented snake oil from the grass basket straddling his chest and stuck it to the rock wall, and dipped a wild flower on it before moving on.

This is the way to mark the warmth of the cloud cliff last night, so as to avoid a few people not getting lost in an unexpected situation.

Diana looked at Kexin and whispered, "When you don't encounter a fork in the road, you don't need to make a mark, right?" ”

Yun Yanuan shook his head and said: "It's better to be careful, the sight here is too short, the rock wall itself doesn't know what material the stone is, it turns out to be jet black, it is easy for us to miss the forks that may exist, or leave a mark every hundred steps, we have enough snake oil and wildflowers, don't worry." ”

In his guess, even if this cave is deep, it will be about the same if there is a thousand or two kilometers, especially if this passage is all the way up, so if this situation remains unchanged, it won't be long before a few people should walk out, after all, the cliff is only a few tens of meters high, how long can it take to walk up diagonally.

However, the truth was beyond his expectations, the situation of the cave remained unchanged, and it continued to walk uphill, but, after walking for several hours, several people had not reached the top of the mountain that they should have reached a long time ago, and they were still moving forward in the exact same path as before, the same current, the same black rock wall, and the same few people.

"No, we've been walking uphill, it's obvious, the cliff is only a few dozen meters high, why haven't we walked out yet?" Diana asked, a little uneasy.

"We only saw the cliff, but we didn't see the inside of the cliff, there may be higher mountains inside, and the cave itself may have a slight arc, increasing the length of the cave, I guess it should be about the same after walking for a while." Ke said calculatedly.

Yun Ya Nuan has the same idea as Ke Xin, and no matter how you calculate, since it is not a dead end, then you can only go on, and there will always be an end.

There was not a hint of wind, only the constant blackness, the unchanging people, and the light of the fire in the smaller and smaller lanterns.

Yun Yanuan had no choice but to add some resin to the concave stone at the bottom of the lantern, and re-led a straw rope into it to light it, the fire returned to its previous brightness, and several people continued to move forward.

"It seems that this is a cave with a winding mountain, and it takes a while to walk in a big arc." Yun Yanuan said.

"According to the distance we are walking now, even if the arc is very small, it is estimated that the mountain inside the cliff should be several hundred meters high! However, these days, we haven't noticed that there are mountains in the distance! Diana asked in a whisper.

"Don't study so much, I'm too lazy to calculate now, I'm so tired of walking! I really want to take a sip of water! Ke Xin finished making a mark and said.

When it comes to water, everyone feels thirsty, but the hardwood carried by Yunya Nuan is a reserved torch, and he is really reluctant to use it to boil water, but he is worried about safety when drinking raw water.

Between the trade-offs, Yun Yanuan still chose to light a torch and use a steel helmet to boil some boiling water to quench everyone's thirst.

The torch was lit, instantly illuminating the surrounding space, the gurgling river reflected bursts of phosphorescence, Diana took the steel helmet to the river to get water, and suddenly in the afterglow, she saw something floating in the river, and hurriedly grabbed it with her hand, and when she looked closely, it was actually a shoe, a hiking shoe that only modern society has......