Lu Hanyang took the flying sword and flew directly over Goguryeo, his route was a bit off, not by the sea, but on the border between the Tang Dynasty and Goguryeo.

Here, a Great Wall has been almost built, and it stretches for an unknown amount of time, anyway, Lu Hanyang didn't see the end of the Great Wall in the air. Here, countless Goguryeo people are constantly carrying stones, as well as countless materials for building the city, and they are busy like ants.

And Lu Hanyang's sword light, under his ability to hide, completely disappeared without a trace, and his body was also integrated with the surrounding environment, he stood in the air, but the people below couldn't see him at all. This is one of his recent gains, when he was studying the talisman, he made it by mistake.

This kind of talisman is a kind of optical invisibility-like effect, when it looks at it with the naked eye, it is comparable to the surrounding environment, and if you don't pay attention, you will directly ignore the past. Of course, this is only for the naked eye, and in Lu Hanyang's own spiritual sense, he is still so conspicuous.

Because this sigil only hides the form, not the breath. He was the only one on the road this time, and Ampei Qingming was let go by him, because he could control where the other party was at any time, and even control the life and death of the other party through the induction between the sword elements.

So he released Amperey Qingming and asked him to find other gods, and only after he grew up, he could help himself. And now Ampei Qingming is just the most ordinary foreign player, and he is still crispy, and there is no way to help him against the enemy.

And Xue Ji directly turned into a piece of ice and snow, and then formed a snowflake mark on Lu Hanyang's body, although it was also a very pleasant thing to fly with her, but Lu Hanyang asked her to avoid it when she came here, after all, she was going to see the military camp of the Tang Dynasty, and she didn't talk about it with a woman.

"Call Zhang Yuanjian out!" Lü Hanyang came to the military camp of the Tang Dynasty, which was an area far away from Goguryeo, where 50,000 troops of the Tang Dynasty were stationed, although the number was slightly more for the border army.

But because it is facing Goguryeo here, it has always been a big problem for the Central Plains Dynasty, so it is understandable that there are more people. And Zhang Yuanjian was facing the map in front of him with a sad face at this time. The Great Wall of Goguryeo is almost finished, and these guys don't know where they actually got the cement formula of the Tang Dynasty.

This made them build the Great Wall much faster, and because of this incident, Li Er thoroughly inspected all the cement workshops, and looked at the heads of several people angrily, these guys made money crazy, and they actually sold cement to some merchants of unknown origin.

And I also took these people to visit the cement workshop, and the result was ......

But it was all too late, Goguryeo already had this process, which made the Tang Dynasty's army face more difficulties, and it was the kind of thing that the Tang Dynasty was originally prepared to use against the enemy. In this case, even if you are aggrieved, there is no way, and the people who leaked secrets have already been cut, what else can you do?

Lu Hanyang also came forward to Jian Zhang Yuanjian because he saw that Goguryeo was actually using cement, otherwise he would have returned to Datang directly, anyway, this Goguryeo was also destroyed by the Tang Dynasty in history, and he didn't think that the current Datang was not as good as the Tang Dynasty in history.

But now that Goguryeo got the formula for cement from Datang, what else has leaked out of Datang? Lu Hanyang is a little disappointed in these people in Datang, they can do anything for the sake of profit?

"Report ...... The pure yang immortal outside is here! Let the chief steward go out to him. The herald rushed directly into Zhang Yuanjian's tent, and then reported to him.

"What? The immortal chief is here? It's really good, Xianchang must have a way to break through this Great Wall of Goguryeo! Zhang Yuanjian was overjoyed.

Zhang Yuanjian...... How the hell did you blockade Goguryeo? Why did they get the formula for cement? Could it be that tens of thousands of you are here to play a family? Zhang Yuanjian walked out of the tent, and before he reached Lu Hanyang, he was so frightened by Lu Hanyang's direct roar that he almost fell to the ground.

"Immortal Rongyu: It's really not our fault! It was the Goguryeo envoys who went to Chang'an, and then got it from those workshops in Chang'an, and it hasn't been written yet, it is completely repeated by their memory, how can we prevent it? Zhang Yuanjian said.

"What, Goguryeo sent someone to Chang'an?" How can Lu Hanyang think that this seems to be a little wrong.

"Yes! They said that they were ordered by the immortal chief to go to Chang'an to bow down, and they did the same, but on the one hand, they bowed down to the ministers, but on the other hand, they were actively building the city wall, although we also suppressed them here, but now because of the locust plague in the country, the military food is insufficient, we don't dare to make a big move at all! Zhang Yuanjian said.

"So, there really is such a thing, but I really want to ask them to tear down the Great Wall! These sticks are really shameless! Lu Hanyang scolded angrily.

But it was not too late, for he now had the opportunity to teach the sticks a lesson and make them completely subservient. This is not just superficial, but directly enslaves all their aristocratic class, and after all the princes and ministers are enslaved, see what tricks they have.

Lu Hanyang had also had such thoughts before, but at that time, the Enlightenment Rune Seal had a trigger condition, that is, the Enlightenment Talisman could only be used by the existence of the Enlightenment Soul that was lower than that of ordinary people. It's all animals, or idiots and fools, or newborn and simple beings like Yukihime.

So he didn't kill these guys at that time, whether he wanted Datang to train his troops or for other purposes, he left the country. But now he decided to take the whole of Goguryeo prisoner.

This situation is something that Lu Hanyang himself has not thought about before, capturing a high-level national leader, and then imperceptibly enslaving the entire nation, all this seems to be really feasible. Moreover, in this era, the power of imperial power is still very strong, unlike in the future in the 21st century, when imperial power is completely a legend in the pile of old papers.

Lü Hanyang didn't ink with Zhang Yuanjian again, he went directly to the royal city of Goguryeo, where he had been there once, but only destroyed one of their walls, and now he decided to go there to capture the prisoners.

This can be regarded as trying his enslavement talisman a few more times, and this time he is not ready to kill more, these people will be the source of labor for Datang in the future.

Thinking of this, Lu Hanyang flew directly towards the Goguryeo royal city, but it was only a cup of tea to arrive at the city he had visited, and here he found that the city wall that had been demolished by him was rising again.