The army and Kuroko looked at each other and sat down. This all-nighter is indeed tiring enough.

"This place, it is estimated that it is quite far from the valley, right?" Sun Zhongyuan thought for a while, "The entrance to the underground Grand Canyon scenic spot seems to be not in Mengshan, but in Linxian. ”

"It seems that after we have been walking for so long, we must not be able to get close. Dajun Meimei took a puff of cigarette and leaned against the stone wall, "Yes, no matter where it is, there is an exit anyway, wait for Chen Danyang to pick us up." ”

Chen Danyang did not disappoint them.

At twelve o'clock in the afternoon, Sun Zhongyuan's phone rang, and Chen Danyang told them to bring the boat to arrive in twenty minutes.

After Chen Danyang arrived, they first hung the things down with ropes, and then the three of them all played diving. Originally, it was possible to fix the rope and go down, but if this was the case, the rope could not be handled, and the hole would be easy for people to find.

Chen Danyang's boat did not have a motor, but it was rowed. There was no way, firstly, he couldn't drive a motorboat with a motor, and secondly, he was short on time, and he didn't rent a motorboat.

At the same time, the reason why I chose to come at lunchtime is because there are fewer people at this time. It just so happened that the morning when Chen Danyang fell into the water was also the time when there were the least people.

The underground river of this underground Grand Canyon and rafting projects are crowded with tourists throughout the day, but it is not in this section. This section is the middle reach, the upstream river is too narrow, the middle water surface is wide and calm, only the downstream, the water flow is relatively turbulent. The upstream is mainly a karst cave scenic spot, the downstream drifting area, and the middle reaches are relatively few people.

"What did you tell them?" asked Dajun after getting on the boat.

"Hurry up and row!" Chen Danyang threw him an oar, "I said that I rented a boat and fell into the water, and the boat didn't know where it went." ”

Sun Zhongyuan smiled, "This time it's really chartered!"

"It's not, but there was a little problem at first, that is, the charterer also asked someone to follow, fortunately I have the certificate, saying that the geological survey cannot leak data, and I also stuffed some money to the charterer!"

The boat finally rowed to the pier. When the underground river arrives at this place, it completely enters the "underground", and the end of the river seems to be a mountain wall, but in fact the river channel has become a secret channel. The dark passage is not long, the exit of the dark passage is the beginning of the downstream, and there is another entrance and pier, you can play rafting projects.

After stopping the boat on the pier, Chen Danyang went to go through the procedures for returning the lease, and the four of them walked out along the sightseeing passage of the underground Grand Canyon.

They all carry big backpacks, which is a bit of a catch. However, there are many such travelers nowadays, and it is normal to enter the underground Grand Canyon to play, and it does not arouse any suspicion.

In fact, the scenery of this underground Grand Canyon is really good, many places are lit with lights, and they are colorful, but at this time, several people have no intention of looking at this scenery.

It's easy to get to the ground, and the entrance to the scenic spot is really in the neighboring county of Mengshan.

The four of them took a car and returned to the hotel in Mengshan County directly from the scenic spot.

Originally, they wanted to go to the collapsed valley immediately. But to be honest, it was useless to go, the hillside collapsed, the entrance to the cave was blocked, and they couldn't get in. And it was so tired that the four of them took a shower and fell asleep when they all lay down.

It wasn't until it was dark that they woke up one after another, ate at the small restaurant next to the hotel, and then went to Sun Zhongyuan's room and sat down to discuss.

"If you want to go back and see Cao Chong's coffin, I'm afraid you have to enter from the underground river, the problem is that the entrance to the cave is too high, and there are cliffs on both sides, which is very difficult. Chen Danyang spoke.

"Pull it down, it's easy to get out, don't even think about going in, if there is any powerful mechanism in the coffin, the gains outweigh the losses." The army responded.

Sun Zhongyuan was actually a little unwilling, "If the entrance to the cave wasn't blocked, it would be a pity." ”

Kuroko took a puff of his cigarette, "The point is, there must be something good in the coffin? ”

"Well, tomorrow we'll go to the valley and see what the landslides are like. Sun Zhongyuan said.

The other three agreed that in this regard, there can be no beginning and no tail.

Early the next morning, the four of them took a car and came to the village again. Sun Zhongyuan's car is still parked in the village, but it is parked well, there is no problem.

They climbed up the hill and went down to the valley to the mouth of the valley on the west side.

Good fellow, on this hillside, there is an "earth dragon". It is the location of the cemetery, a long slope, as if it has been deeply cultivated.

However, the blue bricks of the tomb road were not exposed.

And near the mountain behind, there is an obvious dirt pit, which must have been caused by the fall of the boulder. They went to look at the pit, and there was a boulder in the middle of the bottom. According to the slope of the tomb road, the depth of the tomb entrance is estimated, and the diameter of this boulder is at least five meters, and it is not known how it was set in the soil at the upper part of the tomb entrance.

At the bottom of the hillside, the collapse area caused by the impact of the stone balls is now covered with mud washed down the hillside, and there is no outcropping.

In general, because the soil layer of the hillside is very thick, although there is a long "soil dragon" in this collapse, it is only a shallow ditch type, and the subsidence is about one meter, and the two sides are still inclined planes, which is not very abrupt.

Sun Zhongyuan said, "I'm afraid this is all expected by Cao Cao, even if the mechanism is touched, the outside will not be exposed very obviously." ”

"Yes!" Kuroko looked at it carefully, "back then, this valley must have been even more deserted! Even now, if no one comes for a few months, if it rains and snows a few times, and the following spring and summer are overgrown with weeds, I am afraid it will be even more difficult to be discovered." ”

"Let's go back!" Chen Danyang sighed, "Don't want to enter here, if you want to get that boulder open, you have to have large tools, how can you turn over the mountain?"

"The so-called food can't be used to the fullest, windfall can't be exhausted, I don't know what is in Cao Chong's coffin, it's a pity, but I should let go or let go. "Sun Zhongyuan interface.

Chen Danyang looked at Sun Zhongyuan and said unwillingly, "Actually, although the hole above the underground river is difficult, it is not impossible, as long as we plan carefully and prepare well, we can still go back from the stone crack!"

"I've figured out the matter of the earth's atmosphere. If you want to go up again, please be smart, we won't go!" said Dajun hurriedly.

Heizi patted Chen Danyang on the shoulder, "Actually, I've been thinking about it, there may not be anything valuable in this Cao Chong's coffin." Cao Cao is an understanding person, Cao Chong died young, not an adult, and the coffin should be clean. Moreover, we have also seen that his mind is spent outside the coffin. ”

"Let's go!" Sun Zhongyuan said, and turned away.

climbed the mountain, Chen Danyang still looked back frequently. Sun Zhongyuan looked at him, frowned, and said, "Actually, if you want to know what is in Cao Chong's coffin, there is another way!"