What Li Chengqian finished holding in his hand was a regular twelve-pillar square lock, consisting of twelve wooden squares in total.

Just remove one of the wooden squares and the entire lock will fall apart.

And this one in Zhang Zheng's hand is much more complicated, it is a twenty-four-column square lock.

As long as one is drawn wrong, the order of the other sticks will be disrupted, and the difficulty is much higher.

The two of them each held a Luban lock in their hands and got out of the carriage and came to the camp tent of the Chinese army.

The meals for the two are still handled by the chefs of the Guogong Mansion, but the amount of dishes today is less than in the past.

When Zhang Zheng asked, he found out that he had been taken away by Chang Yan's guy in the name of testing drugs.

I had to smile bitterly and cursed in my heart: "Dog minion"

He also told the chef to make one more tomorrow, so he sat down, and Li Chengqian held a large bowl of noodles with him, and began to devour the dishes.

The so-called half-sized child eats the poor man, and the amount of food for both of them is not small.

In addition, the amount of food today is one-third less than in the past, and in the end, there is no soup left.

The smooth plate was very relieved to see the two chefs who came to clean up the dishes and chopsticks.

There is a sense of satisfaction and pride in having your cooking skills recognized.

Li Chengqian and Zhang Zheng, who were full of wine and food, collapsed in the tent without any image.

Rinse your mouth with chilled grape wine, and don't want to move.

Unknowingly, it has been almost a month since I left Chang'an for more than 20 days.

It was Zhang Zheng, who also felt a little tired after this long journey.

Stepping into Jinzhou, it is not far from Jinyang, the land of the dragons of the Tang Dynasty.

There are some things that are almost time to be arranged.

Although Li Shimin said that Wei Zheng and Yang Shou had already prepared everything in Jinyang.

But Zhang Zhengcai would not be so naïve to think that Wei Zheng and Yang Shou can really do everything.

Zhang Zheng got up and asked Chen Yu to come into the tent, and in front of Li Chengqian, he demonstrated to the two of them what it means to turn decay into magic.

I saw Zhang Zheng take a candle and use a wooden board with a small hole to cover it between the tent and the candle.

An upside-down image of a candle was formed on the tent, and Chen Yu once doubted his life.

Li Chengqian's mouth also opened into an O-shape, and his eyes were like copper bells.

Zhang Zheng struggled to explain to the two of them clearly, this is just a simple small hole imaging principle.

It belongs to the category of physics, and Datang is called Gewu, not an immortal art.

Earlier, in the pre-Qin period, a sage named Mo Zhai discovered this principle and recorded it in the "Book of Ink".

took the two of them to practice again, and the two of them believed that this was really not a fairy art, but a knowledge.

Zhang Zheng ignored the fanatical eyes of the two looking at him, and said to Chen Yu: "General Chen, do you know why I asked you to come in and teach you this knowledge?" ”

Chen Yu looked at Zhang Zheng's fanatical gaze and retracted slightly, and replied:

"What Shao Lang Jun means by this, I don't know."

Zhang Zheng took it out of his arms and asked Qiao Anhao to take it to himself, and there was a small wooden plaque with a plum blossom pattern on it.

He also took the twelve-pillar square lock from Li Chengqian's hand, and handed it to Chen Yu together with the twenty-four-pillar square lock in his hand.

said to Chen Yu: "I want General Chen to take these items and rush to Jinyang first."

Then find a place to image the small hole I taught you today, as well as these two Luban locks.

If anyone asks, you ......"

Zhang Zheng's voice suddenly quieted, and the three of them began to whisper in the tent.

Zhang Zhengyue said that Li Chengqian and Chen Yu's eyes brightened.

After Zhang Zheng finished speaking, Chen Yu showed an excited smile on his face and replied loudly:

"Shaolangjun rest assured, the general will not disgrace his life, and he will definitely find out these people."

Zhang Zheng once again instructed:

"Okay, let's go, tonight's third watch, you can set off with all the people, and the speed must be fast."

"Yes, the last will obey."

Chen Yu withdrew from the camp with an excited smile on her face.

Li Chengqian seemed to have discovered something terrible, licking his face and leaning towards Zhang Zheng.

"Brother Zheng'er, you are too powerful, how did you find out, tell me quickly, it's too incredible......"

Zhang Zheng pushed away Li Chengqian's face in disgust.

I was praying in my heart that everything would be as I guessed, otherwise things would be difficult.

……

Li Shimin stayed overnight in the Kunning Palace of Empress Changsun.

From time to time, there was a burst of laughter in the Kunning Palace.

Li Shimin held his youngest daughter Princess Jincheng with one hand, and the little Princess Jincheng was like a cute dumpling.

At this time, I was finishing my breast milk, and from time to time I spit out a small bubble in my mouth.

Li Shimin rarely showed his fatherly side, and raised his hand to wipe the saliva and lotion from the corners of his mouth for his little daughter.

The youngest son, Li Zhi, who is less than two years old, is swinging on Li Shimin's upturned Erlang's legs.

The "giggle" laughter in Kunning Palace came from the mouth of Li Zhi, who was less than two years old.

Empress Eldest Sun sat in front of a bright candle and was sewing winter clothes for her youngest son and youngest daughter.

After the eldest grandson finished embroidering the last stitch, she put away the needle and thread and the cloth and put them back in the cabinet.

looked at her husband, who was playing with her son and daughter, and a happy smile appeared on her face.

Then I thought of my eldest son who was away from home, and I couldn't help but feel a little worried in my heart, and I couldn't help but say to my husband:

"Erlang, now that we have stepped into October, the weather is slowly starting to cool down.

Cheng Qian, this child, has been out for more than a month, and he will not send a letter back home.

I don't know if he's doing well now, whether he's hungry and cold.

I haven't had time to rush home for New Year's Day this year. ”

Li Shimin put his little daughter, who was already asleep, back into the cradle.

Then he took his youngest son back into his arms and kissed him fiercely on his fleshy face.

Hearing that the eldest grandson was concerned about his eldest son who was away from home, he said with a smile: "Guanyin doesn't have to worry, this child is very measured in doing things."

Besides, Zhang Zheng's monkey still follows Cheng Qian.

With him here, I'm afraid that the two of them will live a more comfortable life than ours. ”

The so-called son Xingqian's mother is worried, and the eldest grandson is worried that Li Chengqian is not doing well.

At the same time, in the courtyard of the Guogong Mansion, Zhang Zheng's mother Yuan Shi was also expressing her worries about her youngest son to Zhang Gongjin, who had already returned to the mansion.

In the Kunning Palace, the emperor and queen of the Tang Dynasty were talking in a whisper.

Suddenly, there was a soft knock on the door outside the dormitory: "Your Majesty, the old slave Wang De asks to see you." ”

Li Shimin comforted Empress Changsun's words, and said to the door: "Come in." ”

After getting Li Shimin's consent, the great eunuch Wang De gently pushed open the door of the dormitory and walked quickly to Li Shimin.

Then he took out a fold from his bosom, handed it to Li Shimin and said, "Your Majesty, the secret music of the common saying." ”

Li Shimin handed his youngest son to Empress Eldest Sun, and then took the fold from Wang De's hand and opened it to look at it.

The eldest grandson was also curious, didn't Chang Yan go out with his eldest son, and then sat next to Li Shimin with his younger son.