As a martial arts academy teacher, Tang Zi'an naturally knew the mountain guard formation of the academy. Therefore, when Mu Bei used the yin and yang inversion technique to release thousands of insects, he had already discovered that something was wrong.

This is wrong from two aspects, but in fact, it is the same thing.

The first thing is that there is a problem with the mountain guard formation.

Secondly, it was accompanied by the excitement of the insects, and there was a sensation of evil spirit!

The former is because of Ying Tianwu.

The latter is because of Xia Sheng.

Or to be more precise, it comes from that ghostly dark spring.

Xia Sheng once sank the Mingsha Banner into it. Originally, it was just a surveillance, but by chance, the evil spirit in Guiyouquan was much stronger than before. If it weren't for the Qingquan on the back mountain of the academy that had the mutual generation and restraint of it, I'm afraid that the entire Buju Mountain would have become a Jedi that would never grow!

Before leaving the prison in the mountain belly, Xia Sheng knew that the ghostly dark spring would inevitably destroy the entire cave with its monstrous evil spirit.

At that time, Xia Sheng did not think there was anything wrong with this matter.

Because that prison was Ying Tianwu's lingering nightmare, it would be ruined if it was destroyed.

But now, Tang Zi'an is rushing towards the abdomen of the mountain, so things suddenly become complicated.

Xia Sheng knew the power of Guiyouheiquan, especially after the Mingsha Banner sank into the bottom of the spring, the evil spirit in it had condensed to a very terrifying level. It is no exaggeration to say that even if Tang Zi is a venerable in the sword, he will definitely not be able to resist it!

Knowing that Tang Zi'an's departure is of great luck, Xia Sheng didn't care about anything else, so he immediately followed Tang Zi'an's pace and rushed forward.

However, although Xia Sheng was integrated with the Emperor Jiang, the four wings behind him were shocked rapidly. How could he keep up with the speed of a sword master?

By the time he returned to the darkness in the mountain belly, it was already a little late.

Tang Zi'an held a sword with one hand, stood solemnly before Guiyouheiquan. His sword intent was surging, but his face became paler.

As early as when Tang Zi'an and Mu Bei fought, he was injured. Later, in the front hall of the academy, Tang Zi'an blocked nearly 70% of the insects with his own strength, and finally, together with Xia Sheng, he forcibly stimulated the Qingming Sword Formation. It can be said that at this time, he was at the weakest time of his life.

At this time, he was alone facing the mysterious black spring. Even though there were thousands of sword energy to protect the body, his heart was still gradually eroded. A dark blue ink line stretched up on Tang Zi'an's chest, and came to his face through his neck, and immediately reflected his face as purple-black as an evil ghost.

This is the manifestation of evil energy invasion!

Seeing this, Xia Sheng's heart sank sharply and wanted to sweep forward to help Tang Zi'an with his arm. However, he was blocked by a blue light curtain at the entrance of the cave.

"What are you doing! Go out now!"

Faced with Tang Zi'an's harsh shout, Xia Sheng's heart had already sunk to the bottom of the valley. He said anxiously: "Let me in, I can help you suppress the evil spirit here!"

Tang Zian smiled faintly and murmured: "It's too late."

As Tang Zi'an's words fell, a roar immediately sounded in the cave. Looking at Tang Zi'an again, his left arm had turned into a lush white bone.

The flesh and blood are destroyed.

Seeing this, Xia Sheng's eyes were slightly red, and he immediately invited Haoran's sword to come out of Qihai and slashed towards the azure blue light curtain.

"clang!"

The strong collision of power directly knocked Xia Sheng back three feet away. However, even with the Haoran sword, Xia Sheng still failed to break Tang Zi'an's light curtain at all!

Seeing this, Xia Sheng's face was so heavy that it could drip into water. He said sternly: "Tang Zi'an! Open the barrier for me!"

Tang Zian turned a deaf ear to Xia Sheng's anger. Instead, he looked at the Haoran sword in Xia Sheng's hand and showed a gratified smile: "Last time on the Life and Death Platform, I guessed that you had obtained all the inheritance of Emperor Gaozong. Now it seems that you are hiding very deeply and even got the Haoran sword."

After saying that, another burst sounded before Tang Zi stayed, and his left leg was gone.

So the next moment, Tang Zi'an staggered and fell to the ground completely, but his hand holding the sword was still as stable as Mount Tai.

His voice began to become a little misty: "A master of barbarians sneaked into the academy. Whether he can pull him out depends on your ability. In addition, when the dean comes back, remember to tell him that I finally failed his expectations..."

"By the way, there is Jiang Qiqi. She is my closed disciple and I will have to rely on you to take care of you in the future."

Xia Sheng was furious and couldn't help but roar, "Tang Zi'an! If you have anything to say, go and tell the dean yourself, who should take care of you? You should take care of yourself. I don't have so much spare time! Now you can quickly open this air wall for me!"

Tang Zian did not respond to Xia Sheng's words. Perhaps it was because he could no longer hear any sound at this time. He still had a breath, but he was unwilling to swallow it.

Finally, he looked at Xia Sheng with great peace, showed a relieved smile, and said, "I know you are not an ordinary person. Even the academy cannot tolerate your ambitions, but I hope that you will never betray the academy. Regardless of whether you agree or not, I will give the future of the academy to you."

After saying this, Tang Zi'an had no choice but to let out a light roar, and his right hand drew an extremely perfect arc and gently fell into the ghostly black spring.

This is Tang Zi'an's last sword and his most powerful sword, because at this time he has merged with the long sword and no longer distinguishes each other.

Use your body to turn into a sword, but I just want to cut off all the evil spirits here!

The next moment, in this dark cave, a long sword that was about five feet long and about a wide one appeared, bursting out an almost golden destructive light, and slashed towards the pool of spring water that was always pitch black as dark as ink.

The evil spirit storm in the field was frightened by it and began to erode towards the sword body frantically. In the blink of an eye, gaps as small as rice grains were corroded on the long sword.

However, Tang Zi'an's sword was too sharp, representing his lifelong cultivation, and all his insights on swordsmanship and the brilliance of life.

So immediately afterwards, the entire cave began to collapse, and a evil aura was cut off by Tang Zi'an's sword. Then the rusty long sword fell decadently above the mouth of Guiyouquan, sealing the breath inside it, and then buried it by a huge rock, and never seen again.

Xia Sheng watched this scene with his face distorted, but he could not do anything.

Then, a whine sounded across the sky at the entrance of the cave.

"Director Tang!"
Chapter completed!