Listening to Bai Xiaowu say this, I suddenly thought of the ancestral precept that Second Master Qi said, "There is a mountain god living in the cave, you can't offend", it turned out that this ancestral precept was actually passed down to prevent anyone from discovering the endless treasures hidden in the cave.

Wen Qingshan frowned and asked, "Since that's the case, then how did you know about the treasure?" Could it be that you've found it? ”

Bai Xiaowu glanced at Wen Qingshan and said frankly: "If I find the treasure, will I accompany you around the cave for a few hundred yuan!" Speaking of which, he told us: "Two years ago, I went to the old house in the village, and I stumbled upon a wooden box under the floor of the old house, which contained a yellowed map and a secret letter, and after reading the secret letter, I learned the secret of the treasure. I originally thought that the older generation in the village knew this secret, so I deliberately tried to test the tone of Second Master Qi, but he seemed to be completely ignorant. Later, I realized that the people in the village didn't actually know, and everyone was just following the ancestral teachings and guarding a myth. However, after all, it has been hundreds of years since this happened, and the superstition of this ancestral precept is too strong, and now everyone has long stopped taking it to heart, and in the past two years, I have entered the cave to knock on stalagmites and look for treasures everywhere, but I have searched almost every corner of the cave, and I have never found anything. ”

After listening to what Bai Xiaowu said, he couldn't help but sigh: "Hey! It seems that there is no play, you haven't found it for three years, either the treasure is not hidden in the cave, or there is no treasure at all! ”

Wen Qingshan pondered for a while and said, "The treasure of Dashun must exist, and judging from the ancestral teachings left by the Bai family, it is very likely that it is hidden in the cave. But it is estimated that it is too hidden, so the Xiaowu brothers have not been able to find it yet. ”

Bai Xiaowu said: "I have no experience in exploring treasures, and it is normal that I didn't find it, but you are experts in this area, and you can see from the equipment you brought." I can cooperate with you in your search for the treasure, but I have one condition. ”

"On what terms?" Wen Qingshan asked rhetorically.

"After finding the treasure, I scored sixty percent!" Bai Xiaowu opened his mouth.

Wen Qingshan smiled slightly and said: "You are inevitably too greedy, this treasure belongs to the state, and we can't divide it, but I can promise you that if you really find the treasure, I will give you a million." ”

"What! Million? Hum! Such a big treasure, to say the least, is worth hundreds of millions, only a million for it, should you be calling Hanako? Bai Xiaowu shouted loudly. If he knew that this treasure was worth tens of billions, he probably wouldn't do it.

"And how much do you want?"

"At least ten million!"

Wen Qingshan said unhurriedly: "Two million at most!" If you don't want to, then forget it, we'll find it ourselves! ”

Two million is already an astronomical amount for Bai Xiaowu, and he should also understand that if he doesn't agree, he is afraid that Zuihou will not get a penny, he thought for a moment, gritted his teeth, and said, "Okay!" Two million is two million! ”

The two sides reached an agreement, and everyone breathed a sigh of relief in their hearts, so that we could also discuss the matter of the Dashun treasure in front of Bai Xiaowu. However, I have always been a little uneasy about this guy, and I always feel that he is secretly going to do some tricks, so I keep an eye on him.

Bai Xiaowu told us that he had almost searched the Hukou Rock, but there was only one oblique hole, and he had not yet entered it. The oblique cave was tilted at an angle of sixty or seventy degrees, and there was a foul smell from the inside of the hole, and it seemed to be filled with poisonous gases, because as long as it was a little closer, people would feel dizzy in their heads, so Bai Xiaowu did not dare to enter it.

After listening to what Bai Xiaowu said, Wen Qingshan decided to go to the oblique cave to have a look, so Bai Xiaowu led the way in front and led everyone to the diagonal cave.

We wandered around the twists and turns of the cave for more than half an hour, and finally came to a fork in the cave with a diameter of about two meters and an inclined Xiangxia, and before we could get closer, we already smelled a faint smell, as if it was the smell of rotten eggs.

Wen Qingshan immediately stopped, and stopped everyone from moving forward, he said: "It's hydrogen sulfide gas, hydrogen sulfide gas is highly toxic, everyone go back!" ”

When everyone heard this, they didn't dare to slack off, and immediately retreated a few meters back, and did not stop until they could no longer smell the stench.

Wen Qingshan frowned and said, "The hydrogen sulfide gas in nature generally exists in volcanic craters, could it be a volcano in this area?" ”

Bai Xiaowu said: "Where will we have any volcanoes here!" I've never heard of it. ”

"Maybe there's a sulphur mine down there. In this case, we must wear a gas mask to enter, and before that, we have to find a way to reduce the concentration of hydrogen sulfide in the cave, otherwise if the concentration is too high, even if we wear a gas mask, I am afraid that it will have a bad effect on our body. ”

"So how do you reduce the concentration of hydrogen sulfide?" Huang Yixian asked on the side, he didn't know anything about chemistry, and he didn't even know anything about hydrogen sulfide.

Wen Qingshan said: "Hydrogen sulfide can be dissolved in water, can also be burned in the air, and will also have a neutral reaction with alkaline substances, so if you want to reduce the concentration of hydrogen sulfide in the cave, there are several ways, one is to make the hydrogen sulfide gas in the cave burn out, and the other is to inject a large amount of water into the cave." ”

Hearing him say this, I immediately objected: "Our former chemistry teacher said that a mixture of hydrogen sulfide and air that ignites it is very easy to explode. Now we don't know anything about the hydrogen sulfide concentration below, and it's certainly not appropriate to ignite it rashly. ”

Cheap added: "It's not reliable to inject a lot of water into the cave, there is no water source in this cave at all, is it possible that we still bring in buckets from the outside?" ”

Wen Qingshan smiled slightly and said, "You two are right, so the only way we can take is to use caustic soda to absorb the hydrogen sulfide gas in the cave." ”

"Absorption with caustic soda?" Everyone was stunned.

Wen Qingshan explained: "Caustic soda, also known as soda lime, is mainly composed of sodium hydroxide and quicklime, and sodium hydroxide can neutralize hydrogen sulfide. This effectively reduces the content of hydrogen sulfide in the cave. ”

Huang Yixian was stunned for a moment when he heard this, and it was estimated that he didn't understand what a neutralization reaction was, but he basically understood what Wen Qingshan meant, and said with a disappointed expression: "In other words, we can't go down to check today!" ”

Wen Qingshan smiled: "Hehe, don't be in a hurry, the Xiaowu brothers have been looking for three years, and we have only been looking for half a day!" Let's go out first, and while it's still early, I'll go to town and buy some caustic soda and come back tomorrow! ”

Huang Yixian nodded helplessly, and the group walked outside the cave under the guidance of Bai Xiaowu.

When we came out of Hukou Rock, it was already more than two o'clock in the afternoon, and we entered the cave at about ten o'clock in the morning.

Wen Qingshan called Niu Fatzi and Bai Xiaowu and drove to Sanyuan Township to buy caustic soda, while I and I followed Huang Yixian back to Qiping Village.

We just walked to the door of the village committee, but suddenly a person rushed out of it, almost bumped into us, the other party lowered his head, said "I'm sorry" in a panic, and ran away, I turned around and looked, the yellow hair, and the tattoo on his arm, I immediately remembered who it was, it was the guy who walked with Bai Xiaowu yesterday.

Huang Yixian scolded in a low voice: "This stinky boy, why are you so reckless!" Lost souls! ”

However, we didn't care, although we live here, but after all, this is the village committee, and it is inevitable that people will come in and out during the day, and it is not surprising to run into him.

However, when we returned to our room, we were dumbfounded, only to see that our luggage was turned over and our clothes were thrown all over the bed.

After being stunned for a moment, I suddenly reacted, patted my head, and scolded loudly: "Damn, that guy is here to steal!" ”

I and the cheap were about to chase out immediately, but Huang Yixian grabbed him, and he said a little calmly: "Let's see if there is anything missing." ”

We thought about it, so we hurriedly checked, and the strange thing was that it didn't seem that anything was lost, Wen Qingshan's briefcase was placed at the head of the bed, which contained tens of thousands of yuan in cash, but although the bag had been opened, the money was still there. It seems that the other party must have noticed that we were back, so they hurriedly ran out of the house, and before they could do anything.

Although he didn't lose anything, I and I were still very angry, shouting to find the yellow hair to settle accounts, but Huang Yixian stopped the two of us, he felt that since he didn't lose anything, there was no need to make a big deal about it, after all, there was no evidence to prove that the guy did it. What's more, we still live in other people's villages, and it won't do us any good if we make a big deal out of it. In the end, I had to give up with the cheap.

In the evening, Wen Qingshan bought caustic soda and came back, and it happened that Bai Xiaowu also came along, so Huang Yixian asked him about the yellow hair.

Bai Xiaowu said: "His name is Liu Qiang, a friend of mine, a foreigner. I came to Qiping Village to collect stalagmites. What did he do, you ask? ”

The cheap just wanted to tell what happened in the afternoon, but Huang Yixian replied first: "We just happened to meet him at the door of the village committee this afternoon, so we asked casually!" ”

After Bai Xiaowu left, Huang Yixian told Wen Qingshan about the thief in the room, reminding him to put the money away, Wen Qingshan listened, but did not immediately check whether the money in the briefcase was less, but frowned slightly, fell into deep thought, and after a while, he muttered: "This guy doesn't take the money, what is he looking for?" ”

The cheap said disapprerovingly: "I think he is just stealing money, but we just came back, and he hasn't had time to do it yet." ”