When Heng Xinyuan stepped into the door of the room, Wan Bingyu happened to read the letter sent by July.

"Husband, you're back!"

In stark contrast to her joyful reaction was Heng Xinyuan's expression, he wrinkled his brows, as if he had something hidden in his heart, Wan Bingyu didn't go to his heart when he saw it, after all, the bandits in Liangzhou City had not been completely eliminated, and the military camp was in the stage of rectification because of the chaos of some forces, and it was normal for Heng Xinyuan to be a little tired, but Wan Bingyu didn't care.

Heng Xinyuan coughed lightly: "Just got home, madam, who do you think sent this letter?" ”

Wan Bingyu told the truth.

Knowing that the letter was not taken from Zhang Wen's men, Heng Xinyuan breathed a sigh of relief inexplicably, and the little sourness in his heart before was gone.

His thoughts are so undeserved!

Madame has suffered so much for him, how sad Wan Bingyu was when he died in Liangzhou City before, the fight is obvious to all, and she has been preparing so hard for revenge for more than a year, how can he doubt that she will change her mind!

Heng Xinyuan felt more and more ashamed of his previous thoughts.

Wan Bingyu didn't know that he had experienced so many surging waves in his heart, and he only held July's letterhead and talked to him with a smile.

"In July, I asked someone to send a letter to report her safety, saying that she was now in a small town not far from Liangzhou City, and the reason why she didn't come directly to Liangzhou City to find us was because that town was different from ordinary towns. Husband, I'm really happy, when I came to Liangzhou City before, I was always worried that July didn't write back to the capital because she had an accident on the road, and it's really good that she's okay! ”

Wan Bingyu was happy, and Heng Xinyuan was naturally in a good mood.

"July is strong in martial arts, so naturally nothing will happen, but madam, I don't understand, what can be wrong with Minzhen, which is not far from Liangzhou City?"

As soon as he talked about the strangeness, Wan Bingyu showed a serious expression on his face.

"There is a description in the July letter, husband, please read the letter." As she spoke, she handed over the letterhead in her hand.

Heng Xinyuan read the contents of the letterhead one by one, and also let out a surprised voice: "July can't be joking, how vicious that gang of mountain bandits is, Madam, you haven't seen it on the road, how could they deliberately bypass a small town, is there a heavy guard in the town...... What are they afraid of? ”

Not only in July, but even Heng Xinyuan began to feel strange.

The soldiers of Pingyuguo deliberately pretended to be mountain bandits to kill and rob Liangzhou City to cause chaos, but they did not make a move against a small town not far from Liangzhou City, not only that, but they even deliberately bypassed that town, what is the connection?

Wan Bingyu racked his brains and couldn't think of the possibility.

Robbers who love to rob and kill people deliberately spare a small town, will it be because the people in that town are more valuable alive than dead? Killing people and robbing money is nothing more than the word wealth, if the people in the town can bring them greater value, it is natural for them to let the town go......

"Husband, do you think there is such a possibility, what wealth may be buried under the town?"

"This, it's unlikely, if there is wealth buried, how can the mountain bandits choose to let it go, isn't it faster to kill them and then dig for treasure."

Although Heng Xinyuan denied the possibility proposed by Wan Bingyu, he felt that things could continue to be thought about according to this line of thought.

There must be something more precious in the world than treasure......

The two of them pondered in the room for a long time, but they were never able to figure out a reason, seeing that things could only rely on the clues of July to answer their doubts, but Wan Bingyu couldn't let go of this heart, she felt that Minzhen and Liangzhou City were close to each other, if Minzhen had anything more than treasure, then there would definitely be rumors and rumors, so she asked the most knowledgeable old man in the city to ask.

When the old man was brought over, he was genuinely afraid.

Wan Bingyu gently persuaded: "Uncle, you don't have to be afraid, we asked the official to invite you, not because you made a mistake, but because we want to know some things near Liangzhou City, I heard that you are always the oldest person here, and you are also the most well-informed person, so we invited you over to ask." ”

It wasn't because I committed a crime........

The old man wiped the sweat from his forehead and said, "If the general and his wife have something to say, ask directly, and the questions that the old man can answer must be answered truthfully." ”

"We want to know about Minzhen, uncle, you have lived in Liangzhou City for so many years, you must have heard about Minzhen, right?"

The old man didn't expect them to ask this, so he was stunned for a moment before saying, "I know a little bit." ”

Wan Bingyu and Heng Xinyuan glanced at each other, and asked again and again: "Then old man, do you know that there is a thing in Minzhen that is more valuable than treasure, do you know what it is?" ”

The old man was stunned again.

"Where in the world is there anything more valuable than treasure, ma'am, you are not joking with old decay, are you? I have never heard of something more valuable than treasure, but I have heard some rumors about Minzhen in my early years, saying that there is a very special soil under Minzhen, which can be made into powerful gunpowder......"

As soon as these words came out, Wan Bingyu and Heng Xinyuan were shocked.

No wonder the Pingyu Congress sent troops to come, and would rather spend a lot of effort to collude with the prefect of Liangzhou City to mess up Liangzhou, if you explain it with this statement, everything can be logical, those people are just a trick to cover people's ears and eyes, and their real purpose is probably the special soil buried in the ground of Minzhen!

Heng Xinyuan didn't know much about gunpowder, but Wan Bingyu understood it in his heart.

In this era of cold weapon warfare, if you can use gunpowder, a weapon with great lethality, let alone dominate the Central Plains...... Don't even be afraid to fight all over the world.

"Why has this soil never been reported to the imperial court?" Before Heng Xinyuan went to Liangzhou last time, he had read the files related to Liangzhou in the capital, and there was not a single sentence in them that mentioned this special soil, not only that, but he had not heard anyone mention this since he came to Liangzhou City.

It's obviously a big deal, why don't the people in Liangzhou City want to mention it?

A touch of pain flashed on the old man's old face: "This old decay is not very clear, but I have vaguely heard people talk about it, and then I went to read some information to know the reason...... A long time ago, an extremely intelligent young man came out of Minzhen, who discovered this kind of soil and used a special method to refine the soil into a powder, and finally made it into a ball......"

Wan Bingyu raised his head suddenly.

As a reborn time-traveler, she feels a little more sensitive than the average person in some ways, especially when it comes to things related to modern times......

Isn't it a modern bomb to refine the soil in a special way and add a fuse to make it into a ball?