Seeing Lu Dongzan's appearance, Songtsan Ganbu remembered his affection for him back then, he had already believed in Li You's words, and he also felt that the next visit, if Lu Dongzan was accompanied, he should be able to learn more things, so he was no longer indifferent and nodded slightly at Lu Dongzan.

Seeing Songtsan Ganbu's attitude, Lu Dongzan was overjoyed, and tears couldn't help but flow down again.

Seeing Songtsen Ganbu's attitude towards Lu Dongzan, Li You was also secretly happy, and he said to Songtsan Ganbu: "Zampu, you and Mr. Lu Dongzan are acquaintances, and the language is also customary, so he will accompany you on the next visit." ”

After speaking, he said to Li Xueyan: "It's rare for Zampu to come to Chang'an, except for the industrial city, if there is anything else you want to see, just bring it up." You are my cousin, just for your sake, Chang'an has no secrets about Zampu, and I will do whatever I want. ”

Li Xueyan was originally worried that there would be something taboo, but if Songtsen Ganbu brought it up and Li You didn't agree, she would feel embarrassed.

Seeing Li You giving face like this, Li Xueyan was also very happy, and she said gratefully: "Cousin, my little sister knows that you are good to me, thank you." ”

Subsequently, Li You and Xiao Wanyu accompanied Songtsen Ganbu and others to a dinner.

After the dinner, Li You sent Songtsan Ganbu to the gate of the palace and said to Lu Dongzan: "In the future, you will accompany Zampu, and you can also mention to me if Zampu has any requirements." ”

Lu Dongzan accompanied Songtsan Ganbu and others to go out, he was very excited, he had a lot to say to Songtsan Ganbu, at this moment, if Songtsan Ganbu proposed to let Lu Dongzan return to Tibet with him, he would not hesitate to give up everything in Chang'an and leave with Songtsan Ganbu.

However, Songtsan Ganbu did not communicate with him on the way, but only talked to Li Daozong, and when he arrived on Suzaku Street, after he said goodbye to Li Daozong and others, he said lightly to Lu Dongzan: "You go back first, and when I need it, I will send someone to inform you." ”

After speaking, he led his entourage towards the Wei Wangfu in the north.

Lu Dongzan stood alone on the street, staring blankly at the back of Songtsam Ganbu in the distance.

In the late autumn of Chang'an, the weather has turned cold. At this moment, a gust of cold wind blew in his face, Lu Dongzan's mind began to clear up a little, he felt a little sad, and it seemed that he could no longer find the intimate feeling with Songtsan Ganbu before.

Finally, with a long sigh, he turned his horse's head and walked toward his home to the south.

Songtsen Ganbu was walking on the road, and his relatives around him asked: "Zampu, Lu Dongzan, do you still trust this person?" ”

Songtsan Ganbu didn't answer, although he already believed a little bit about what Li You said about Lu Dongzan, but no matter what the reason, Lu Dongzan betrayed himself after all, for such a person, Songtsan Ganbu would never trust him again.

Songtsam Ganbu is an emperor, for those who betray him, has always been unforgiving, if Lu Dongzan is not Chang'an, I am afraid that what awaits him is death, and even his family will not have a way to live.

In the following days, Li You received envoys from various countries who came to Chang'an every morning, received representatives from all over the world who came to participate in the food conference in the afternoon, and drank and chatted with Pei Dilan in the evening.

On this day, the research institute sent a long-awaited gift from Li You, and they successfully processed fine copper wire of uniform thickness, which provided conditions for the manufacture of generators and electric motors, and also laid the foundation for the further use of electricity in the Tang Dynasty.

Li You set up an electric power research institute in the research institute and served as the director himself. For this reason, he no longer received foreign missions, and Yin Hongzhi was in charge of receiving matters, and went to the research institute every morning to directly guide the research work of the research institute.

The days are busy and calm.

Outside the city of Pyongyang, the village of Blue Cave.

A few days ago, after more than half a month of fierce attack, the Tang army finally approached the city of Pyongyang and completed the encirclement of the city. Li Shimin led the Eastern Expeditionary Army to the Marshal's Mansion yesterday afternoon to the village of Landong, 10 miles outside Pyongyang. The Tang army, which had already prepared for the siege, waited for Li Shimin to issue the final order to attack the city.

This morning, Li Shimin, wearing a golden helmet and armor, carrying a sword at his waist, rode a tall white sweaty and bloody horse, and was escorted by the great general Li Jing and others to personally go to the city of Pyongyang.

At this moment, Li Shimin's chest swelled with an incomparably heroic passion. Goguryeo, a fierce enemy who had endangered the Central Plains for hundreds of years, was about to be trampled under his feet and completely destroyed.

Li Shimin hurried up and galloped in the lead. A heroic poem began to brew in his chest, waiting to see the glorious moment when Yuangai Suwen knelt at his feet.

At this moment, a fast horse in front of him galloped over, and when he saw Li Shimin, he turned over and dismounted, knelt down on one knee and reported: "Your Majesty, the villain is ordered by General Zhang Shigui to report to you." ”

Li Shimin said: "Say it." ”

"Your Majesty, this morning, a fire broke out in Pyongyang City, and Yuan Gai Suwen and his concubines were killed. His son Tang Hemu led the soldiers and civilians in the city to open the city and surrender. The messenger said.

When the crowd heard this, they cheered.

"Long live Your Majesty, long live, long live."

Li Shimin was also very happy, and Goguryeo was finished. However, he also had some regrets in his heart, he really wanted to meet Yuan Gai Suwen in the end, but unfortunately, people didn't give him this opportunity.

Regardless, it's a great win. He raised his whip and shouted, "Enter the city." ”

The Goguryeo War was over, and Li Shimin was about to return to the court, and in his telegram to Li You, he hoped that he would solve the Tushibo matter as soon as possible.

Chang'an City.

Lu Dongzan accompanied Songtsam Ganbu on daily visits around Chang'an, and as Li You promised, Chang'an City had no secrets from Songtsam Ganbu. Songtsen Ganbu not only visited civilian projects such as industrial cities, industrial schools, steel bases, and research institutes, but also visited secret places such as arsenals and radio rooms.

The military project did not shy away from Songtsen Ganbu, and the Military Academy and the Flying Tiger Army also let him visit and observe military exercises.

Li You is not afraid of leaking secrets at all, with the current strength and scientific and technological level of Tubo, what can he do if he sees it? He just wanted Songtsen Ganbu to see the gap between Tusbo and the Tang Dynasty, so as to convince Songtsan Ganbu to make the right choice.

As Li You had expected, as the visit deepened, Songtsen Ganbu became more and more frightened, and he began to worry deeply about the fate of Tibet.

Li You received Lu Dongzan's report, and he became more and more sure in his heart, he specifically inquired about Songtsan Ganbu's attitude from Li Xueyan, and already had a plan to have a face-to-face showdown with Songtsan Ganbu.

After receiving Li Shimin's will, Li You invited Songtsan Ganbu to the Northwest Palace, where he wanted to have an open and honest conversation with him.

However, at this moment, someone gave Li You eye medicine, which made Li You furious.