With the cooperation of An Yi and the Hua family's secret guards, Yun Dian and Taizu secret guards were twice as fast as the speed of thorough investigation.

At dawn on the second day, the secret passage was found.

This secret passage is very secret and exquisite, located in an inconspicuous house in the North Three Hutong, Yun Di and An Yi took a lot of effort to crack the mechanism, obeyed Hua Yan's orders, did a good job of protection, and entered the secret passage.

The entrance to the secret passage is very narrow, and if you don't want to go in, there is no cave, and the mechanism is more complicated, but fortunately, Yundian and An Yi are proficient in this way, while exploring, while cracking the mechanism in the secret passage, it took more than two hours, and gradually cracked most of it.

The two found that from the underground, the four cities of the southeast, northwest, and northwest of Bei'an City could be unblocked, and the four mountains were connected to the east, west, south and north.

Those four mountains look like four mountains from the outside, but no one knows that the inside has already been hollowed out, and they are four hollow mountains.

In the first mountain, the source of the plague that Hua Yan expected was found, that is, the dead corpses that had been washed by the water, and they were stored in special ice coffins, and there were crawling corpse insects in them, and there were ten pairs of such coffins.

If the corpses and insects in these ten coffins are released, not to mention one Bei'an City, even ten Bei'an Cities, they will also be destroyed.

Guarding the coffin was a group of people, each wearing specially made protective clothing and specially made protective masks, revealing only two eyes.

Yun Di and An Yi did not disturb this group of people for the time being, and continued to explore the other three mountains.

In the second mountain, there are ten large granaries stored, and there are also a group of people to take care of them.

In the third mountain, there is an armory.

In the fourth mountain, there seem to be soldiers and horses, and the number is not small.

The two felt that the matter was very important, but they were not disturbed, and quietly withdrew with someone and told Huayan to make a decision.

Hua Yan had been waiting for the news of Yun Di and An Yi, and when she heard that the two had found the secret passage of the mechanism, she breathed a sigh of relief, and took advantage of the gap between the two of them to crack the secret passage of the mechanism, and she slept for two hours. When they woke up again, the two of them brought back the results.

Yun Di and An Yi told the situation of the investigation, and under the fatigue and fatigue, the results of the investigation were too amazing, and their faces were not very good.

After hearing this, Hua Yan was also shocked and angry, stood up and slapped the table, and the best pear blossom wood table was smashed by him, "I really didn't expect that there was such a big shocking secret hidden under the ground of Bei'an City." ”

When Cheng Guzhi, Cheng Zixiao, the Five Princes, Xia Ze and others heard about it, they were all shocked.

Who would have thought that the mountains facing each other in the southeast, northwest, and northwest cities are all hollow mountains? Who would have thought that every hollow mountain hides a terrifying secret?

Who is so bold?

Hua Yan's face was gloomy, and she asked word by word, "Can you find out how many soldiers and horses live in that mountain?" ”

Yun Dian and An glanced at each other, and Yun Dian spoke first, "The two of us didn't dare to alarm for further exploration, but there are several peaks connected to the mountains on all sides, and if they are all opened, I am afraid that there will be many Tibetan soldiers." ”

An Yi took over, "Conservatively speaking, at least 200,000." ”

Hua Yan's face suddenly turned cold, "I finally understand, it turns out that someone used the Northland to raise soldiers and horses privately, no wonder the taxes in the Northland have increased by two percent, and all the granaries in the states and counties of the Northland have been called half a year ago, resulting in no food for disaster relief." ”

"Fourth sister-in-law, what should I do now?" The fifth prince immediately asked.

Hua Yan wanted to destroy the underground demons at this time, but she knew that this matter could not be rushed, and she had to deal with it calmly. She said, "Let me think about it." ”

The fifth prince stopped.

The rest of the people also stopped talking.

Hua Yan slowly sat down, pondered calmly for a moment, and then commanded, "Yun Di, you take people to control the source of the plague in Dongshan first, destroy the ten coffins, and control the group of people who are guarding the coffins. ”

Yun Dark said, "Master, the secret passages of the four mountains are connected, and the leaders who take care of each mountain should be able to exchange news, once they move the East Mountain first, the other three mountains will probably get the news immediately." If you want to move, you can only move together, otherwise, in case of alarm, I am afraid that the consequences will be unimaginable. ”

Hua Yan also expected it, and said calmly, "You found that those people in Dongshan were wearing protective clothing and masks, and only showed two pairs of eyes. So, that's where we can start. You lead people to control that group of people first, and then use our people to pretend to be that group of people, and deal with the other three mountains first. ”

Yun Dian suddenly understood, and nodded yes.

Hua Yan said again, "Dongshan must move quickly, the plague in Bei'an City is obviously these people secretly manipulated the people through the secret passage to infect the people with the plague, we can wait, this can't wait, although the number of people in the city is small now, but no one can die, I will send the news of the people, obviously these people are afraid that they don't know yet, so act quickly." ”

Cheng Guzhi answered at this time, "What the crown princess said is reasonable, those soldiers and horses are obviously raised in the mountains, and they will not come out easily, and it is not too late to think of a perfect plan, but only this plague can't wait." ”

Cheng Zixiao also nodded, "Not bad." ”

Hua Yan instructed again, "Be careful." ”

Yun Dark bowed, "Master rest assured." The words fell, and he immediately took someone to arrange the action.

After he left, Hua Yan said to An Yi, "An Yi, you take someone to investigate, I want to know how many soldiers and horses are hidden in Xishan?" Where is the exit of the soldiers and horses hidden in the western mountains? ”

"Yes, young master." An Yi received the order and immediately went.

After arranging the two of them, Hua Yan instructed Cai Qing, "Immediately send a message to my eldest brother, asking him to bring 500,000 soldiers and horses to Bei'an City, and after arriving, garrison troops in Xishan." ”

"Yes, Crown Princess." Cai Qing immediately went.

Cheng Guzhi, Cheng Zixiao, the Five Princes, Xia Ze and others were all wondering if the Hua family also had soldiers and horses? Hua Yan's eldest brother Hua Zhuo came from Lin'an to the north to bring 500,000 soldiers and horses, how long does it take to arrive.

Hua Yan knew that she was thinking badly when she saw the looks of several people, obviously they didn't expect that she also had a worship of her eldest brother Lu Zhiling, and she had never deliberately publicized the matter of worshipping Lu Zhiling, so not too many people knew about it.

She explained the confusion of a few people, "It's me the eldest brother Lu Zhiling, two months ago, His Royal Highness the Crown Prince secretly ordered him to send 500,000 soldiers and horses to station on the border of the northland, and he had quietly traveled from the southwest to the border of the north half a month ago. ”

Everyone was stunned.

Lu Zhiling, one of the four princes of Southern Chu, the prince of Jingguo Gongfu, was entrusted with an important task by His Royal Highness the Crown Prince because of his great contributions in the southwest, serving as the general of the southwest soldiers and horses, in charge of millions of soldiers and horses in the southwest. It is said that the Jingguo Mansion has really won the trust of His Royal Highness the Prince, and there are also rumors that it is because of the relationship between the Crown Princess and Lu Zhiling.

However, because of the low-key nature of the Jingguo Mansion, although this matter caused a lot of limelight, after the limelight passed, no one mentioned it again, so that even the five princes didn't think about it.

Several people breathed a sigh of relief in unison, if there were 500,000 soldiers and horses, then there would still be a chance of victory against the soldiers and horses hidden underground in Bei'an City.

"The Northland border, which is the closest to Bei'an City, is snowy and cold, and the march is slow, and it takes five days to travel at the earliest." Hua Yan said in a deep voice, "Just endure it for five days first." ”

Several people nodded in unison.

Hua Yan turned around, touched Xia Ze's head, changed his tone, and said softly, "Fortunately, you have figured out that Bei'an City may be hiding a secret passage, so I will write a letter to His Royal Highness the Crown Prince and reward you first." ”

Xia Ze didn't expect that an idea that occasionally popped up for him would really find out such a big thing, although he didn't make a great contribution in a daze, but he was also very lucky. He didn't dodge the garden's hand, and suggested in a low voice, "Sister Yan, I'm not a child, you ...... Can you stop touching my head all the time......"

Huayan was full of depression, but she couldn't help laughing when she heard the words at this time, half of the depression dissipated, she touched it hard again, and said with a smile, "Obviously it's still a half-grown child, what kind of young adult is pretending to be?" ”

Xia Ze blushed and looked at her helplessly, as if he couldn't do anything about her.

Cheng Zixiao said at this time, "I want to be a child and let the princess's golden hand be touched, so don't be in the midst of blessings and not know blessings." What kind of luck do you have, you have made a great contribution in one sentence. When the words fell, he jokingly said, "It's rare that your luck was touched by the crown princess?" ”

Xia Ze looked at Cheng Zi and smiled, he seemed to be really jealous, and couldn't help laughing.

Hua Yan withdrew her hand and said seriously, "Where do you have Xia Ze cute?" Even if you're a child, I don't touch it. ”

Cheng Zixiao rolled his eyes.

Cheng Guzhi and the five princes were also amused.

A few jokes made the atmosphere suddenly relax and make several people feel more relaxed.

Hua Yan calculated the days, Yun Chi did not appear in Bei'an City today, that is to say, Su Zi stopped him, she breathed a sigh of relief in her heart, and wrote a letter to Yun Chi.

The shocking secret hidden under Bei'an City made her startled and shook her chest angrily, you can imagine how angry he would be if this letter was seen by Yun Chi.

She still didn't forget that Yun Chi hurt her hand in anger when she heard that Beidi had increased taxes by two percent half a year ago, so after she first mentioned the arrangements made for the people of Bei'an City, she mentioned the shocking secret of discovering Bei'an City, and then added a sentence at the end of the letter, even if you are angry, you are not allowed to hurt yourself.

After writing it, she thought about it and added, I will settle everything in the Northland, no need to worry, no matter who raises a private soldier, I will help you become a soldier of the imperial court.

In addition, she is fine, let him not worry, take care of his body, and don't let her worry.