That waist card was the title that Lu Yu obtained by killing the incarnation of the Demon Ancestor.

On the bronze waist plate, the words "Left Shuchang of the Great Qin Dynasty" are engraved.

Lu Yu walked to the barrier and did not cast any spells around him. He just held the token and walked forward.

The light curtain was like a lake, sparkling, and it seemed that it could sense the waist card in Lu Yu's hand. After a violent fluctuation, an entrance actually opened.

Lu Yu stepped in without encountering any obstacles.

"What! He actually went in."

"Can you not be able to use magic power to enter this barrier?"

Many monks came forward to try, but without exception, they were blocked by the barrier.

After putting Lu Yu in the light curtain outside, he returned to his original appearance, but still had no change.

"The barrier has not disappeared, but how did Lu Yu get in?"

"Look, after he entered, we couldn't see the scene in the hall clearly."

Wei Mengting raised her eyebrows and said, "Maybe, Lu Yu can only enter calmly with an opportunity we could not imagine."

Inside the hall.

When Lu Yu broke into it, a cold wind suddenly blew up the end of the hall.

This should be a library, with several rows of bookshelfs above three people nearby, filled with bamboo slips.

I don't know how long no one has come in here. It is full of decay and aging atmosphere everywhere. The ground is covered with a thick layer of dust, but the bookshelf is very strong. It has withstood the destruction of thousands of years, but it has not yet aged or decayed.

Lu Yu took out a pair of bamboo slips and slowly opened them, but was attracted by the contents inside.

It is written in ancient characters, which is a volume of recording, probably recording the daily affairs of the ancient court.

"The Shangqing Meng Yi personally led 200,000 soldiers to help the Great Wall Legion."

"The evil demons are powerful, and we recruit another 500,000 troops from the capital to rush to the Great Wall."

What is written here is about the sergeant dispatch of the ancient court.

If you just read these words, you might not realize anything, but Lu Yu came from that ancient era and came to the battlefield in person, so he naturally knew how dangerous the war at the border was.

In the past, Meng Tian died under the siege of countless ancient demons, and that scene is still vivid in my mind.

"I don't know if I have really changed the time and space of the past." Lu Yu murmured.

This place should have been sorted out by a dedicated person, arranged from far to near as time goes by.

Lu Yu read the ground very quickly. In less than a while, he had already finished reading a row of bookshelf.

There is very little content that can be recorded in bamboo slips, so the content inside is concise and to the point, and a lot of things are written in just a few words.

As time goes by, the border wars become more and more serious.

Almost every other year, the ancient imperial court would recruit a large number of soldiers and devote themselves to the border battlefield. The Great Wall Legion suffered a terrifying loss of 70% every year, and a large number of people were replaced almost every year.

"The evil demon broke through Beiming County and killed the four guards of the Martial Saints. The evil demons were rampant, and countless people died."

The second row of bookshelf, the bamboo slips at the beginning, have recorded the fact that the evil demons crossed the Great Wall and entered the human territory.

It was a chaotic era, with demons rampant, and the weak human race was slaughtered. People with a little strength gathered together and barely fought with the evil demons.

The battle report reached the center and then to the hands of the Human Emperor, which was the third Eastern Tour of the Human Emperor.

At this moment, countless evil demons had crossed the Great Wall and had already arrived at the human territory to act recklessly, with raging war everywhere.

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Chapter completed!