Guojiabao is really a secret, that is, salt production.

These things that seem to be like tombs are actually salt soil scavenged from the surface of the saline-alkali land, and after accumulation, it penetrates layer by layer, falls into the iron pot below, and then uses the reeds of the saline-alkali flat as fuel to accelerate evaporation and let the salt particles precipitate.

It may seem simple, but in this day and age, it's top secret. Guo Jiabao, who has mastered this technology, is no wonder that he will be rich.

"But, Lord Song, it's not that no one has tried to make salt in this saline-alkali land, it's just that the salt made is extremely bitter, take a little too much, and even some people will be poisoned, who will buy this kind of salt?" Zhao Da was puzzled.

Song Nian smiled: "I just tasted it, first, this area is close to the river, the salt is relatively pure, if it is toxic, I am afraid that the toxicity is also low, in addition, according to my conjecture, I am only afraid of this Guo family, and there are other means to remove the toxicity." ”

"In this way, this Guojiabao tragedy, I'm afraid that someone is also plotting the huge wealth he has accumulated over the years." Chu He groaned.

"I think so, but it's also possible that it's not money, it's salt ......" Song Nian said with a smile: "You also know that many times money may not work, salt ...... But it will always work. ”

In this era, salt is a very precious strategic resource.

This immediately resonated with Zhao Da and Chu He.

However, in Song Nian's heart, there was always an idea that was about to come out.

It seems, like, probably, that she could think of it.

The night breeze blew, and Song Nian couldn't help but shiver. Here, it seems to be much colder than Guangqiu County.

"What, is it still cold? There are still some dilapidated houses in Guojiabao, which can shelter from the wind and rain, why don't you go there and rest for a while? Chu He looked at Song Nian with some concern, and stopped talking.

"Forget it, then Guojiabao is too cold......"

Song Nian was suddenly stunned.

"Guo Jiabao...... Gloomy ......"

Chu He looked at Song Nian's suddenly stunned appearance, and raised his hand to stop Zhao Da, who wanted to speak.

The two have been matched for a while, and every time Song Nian looks like this, he will give him a different harvest.

Song Nian suddenly turned around and looked at the dense tomb-like salt boiling field: "Lord Chu, just now we are in Guojiabao, and we have never noticed one point, that is, Guojiabao lacks a very important thing. ”

Chu He frowned: "What's that?" ”

Song Nian smiled, and then sighed: "It's the treasury ......."

"No matter what Guo Jiabao wants to store, grain, weapons, salt...... All need a storeroom. But the situation of the house over there, we have all seen, is not the appearance of the warehouse at all. ”

"So...... Guojiabao's treasury, it should be, where it is! ”

"Where is it......" Chu He vaguely guessed, but still asked, "Why do you suspect that it is there?" ”

Song Nian said: "Do you remember, as soon as I returned to Guangqiu County, I encountered a snow corpse. ”

Chu He nodded slightly, he was also extremely concerned about this matter.

After all, how could a corpse that died a few months ago appear in front of everyone with a well-preserved body, and then half of the body suddenly rotten?

"I couldn't figure out what the body was, half of it was well preserved, and half of it was completely decomposed. Now, seeing and salting, I understand......"

Chu He frowned: "What do you mean?" ”

Song Nian smiled: "I mean, that corpse is soaked in salt water." The salt water, which is extremely cold, freezes the corpse, so it can keep the corpse from rotting. The other half of the body, because of the container, could not be soaked, so it had long since rotted. ”

Salt water and ice cubes are mixed to keep the temperature below zero for a long time. The Guojiapu massacre happened a few months ago, in the winter, and by collecting ice and mixing salt water, it was possible to create a large ice vault underground to preserve the corpses.

Chu He suddenly realized: "No wonder you said that you were in that place." ”

Zhao Da was puzzled on the side: "Lord Chu, Lord Song, what are you talking about?" ”

Song Nian smiled: "You'll know later." ”

The three of them returned to Guojiabao, Song Nian walked around the lobby, and then said to Chu He: "It should be, it's here." ”

Chu He nodded slightly.

Song Nian smiled and said, "Zhao Da, I'm going to work hard for you." ”

"What do you mean?"

Song Nian pointed to the ground: "Do you know why this place is so cold?" ”

Zhao Da touched his head: "Could it be...... Is there too much yin here? ”

Song Nian said with a smile: "This is the salt depot of Guojiabao, as long as we dig here and find the salt depot, we will definitely find new clues." ”

Zhao Da suddenly understood, spat into the palm of his hand, rubbed his hands, and began to dig on the ground with a steel knife.

After a while, Zhao was panting tiredly.

"Lord Song, I can't dig ...... anymore"

Song Nian took a look, and sure enough, the pit dug by Zhao Da had several feet of god, but the soil below was very hard, and Zhao Da's tools were not in his hands, so he couldn't dig it.

Chu He frowned: "Could it be that you want to transfer the Black Armor Army over?" ”

Transferring the Black Armor Army over, you can dismantle the underground secret room just like in the Wang Clan's Silver Trumpet.

At this time, there were only three people, but they could not do this kind of aesthetically unpleasant violent demolition.

In Song Nian's heart, he remembered another thing at this time, and said with a smile: "No, I guess, it should be easy to enter and exit here." ”

Chu He looked at Song Nian, and Song Nian explained with a smile: "This is a salt warehouse, you have to carry salt frequently, and you must be able to enter and exit with those merchants." ”

She paused, and then said, "Besides, that snow corpse, half of its body is rotten, and I am afraid of ...... It is also because some people often open this place, otherwise, the heat cannot enter, and the snow corpse will not have such a big difference in the degree of corruption between the left and right. ”

"Then, Lord Song, where is the entrance?"

Zhao Da sat on the ground panting.

"Find!" Song Nian only answered him with one word.

The three of them were in the lobby and began to search carefully.

However, this time, even if Zhao Da was an expert in finding the secret room, Chu He was also well-informed, but he still did not find any secret doors.

The cold feeling under his feet repeatedly reminded Song Nian that the salt warehouse was down there.

It's just that Song Nian couldn't find the entrance to the underground salt warehouse no matter what.

Could it be that the salt depot itself is underneath, but the entrance is somewhere else?

Song Nian was a little shaken.

It was then that her gaze noticed something that she had overlooked several times.

The huge brass lamp.

Such a rough copper lamp stands in the lobby, in fact, how to look at it, how discordant.

It's just that this lobby was originally built very strangely, so people can't feel the incongruity of this copper lamp.

Song Nian stepped forward and tapped lightly on the base of the copper lamp, which seemed to be hollow, but this didn't mean anything. After all, copper lamps are like that.