After Xu Yunfei fell, he quickly got up. After several steps back, he immediately began to use martial arts to heal his wounds. At this time, Nie Tian found that there was a book left at the place where Xu Yunfei fell just now. After a closer look, it turned out to be "washing marrow and cutting bone". Nie Tian was very happy. He immediately rolled over to the book, grasped the secret script and ran back.

Xu Yunfei was depressed. He accidentally lost the secret script just now. It's very good. There are still a small number of key parts in the secret script. Nie Tian took them back before he could finish his cultivation. Therefore, Xu Yunfei's next step is to think about how to grab Nie Tian's secret.

Nie Tian finally got the secret, just in case, he used his super memory, first quickly looked at it, and then closed his eyes and quietly remembered it.

After seeing this situation, Xu Yunfei immediately used the earth shattering chop again. This time, he may have used almost all his physical strength.

So he thought to himself, "this time we must seize the opportunity to solve them all at once, otherwise we can only find the opportunity to escape."

With this idea, Xu Yunfei began to act, only to see the mud dragon was summoned out again, obviously more powerful than before, this is Xu Yunfei's last fight.

Just now, Xu Yunhao and other people were injured to different degrees.

Looking at this situation, Nie Tian feels that his current strength, if he does not hurt Xu Yunfei, he will hurt himself instead. After thinking about it, he quickly said to the okra beside him, "okra, you'll protect me later. I'm going to start practicing marrow washing and bone cutting. I hope I can have time."

"Well, don't worry, Nie Tian, I will protect you."

Leng Qiuyan nodded her head firmly. Nie Tian smiled and didn't say much. They retreated to a safe place. Nie Tian sat cross knee and began to practice.

"Qi sinks into the elixir field, and moves the energy from the top to the bottom slowly."

Nie Tian has already memorized the mental method in his mind, so he starts to practice with the movement while reciting it silently.

Leng Qiuyan is on the side watching around vigilantly to prevent Xu Yunfei from sneaking attack. Nie Tian quickly entered the state. Originally, Nye's heart law was not miscellaneous, basically it was the heart method of condensing strength, so after a quick baptism of the method of washing the marrow and cutting the heart, it immediately entered the extreme essence state.

In this state, you can't interrupt, or you will be possessed, or you will die immediately.

Looking at the big sweat on Nie Tian's forehead, Leng Qiuyan is a little worried. Her palms are beginning to sweat. She doesn't know what's going on with Nie Tian now, and she can't disturb him. She can only protect the Dharma for him in silence.

At this time, Nie Tian's body is being cleaned up at a high speed, and a burst of strong air from head to foot is constantly washing away. His state is a little different from that of Xu Yunfei. Obviously, the secret of marrow washing and bone cutting is targeted. When he treats Nie Tianjing's Ning Jin formula, it just coincides with the peak state of marrow washing and bone cutting.

Therefore, this baptism will be very thorough, and it is very important for Nie Tian's physical maintenance. It can be said that it is the most critical step for Nie Tian to break through the level.

Over there, Xu Yunfei is fighting with Chunyang Feifei and Lin Hao.

After a short time, Xu Yunfei occupied the top. In the final analysis, it was still a matter of physical strength. Because of the mud dragon, Xu Yunfei just stood on it and didn't need to spend too much physical strength to leap and shuttle. So after 20 minutes of fierce fighting, both sides retreated and were preparing for the final battle.

After Xu Yunfei had a rest, he found that Nie Tian had gone there to practice the secret of washing marrow and cutting bones. He was not angry at once. He wanted to occupy this secret by himself.

Xu Yunfei is well aware of the power of this secret script. He will become so powerful by practicing it casually. If he is trained by Nie Tian, he will be even more powerful. He will be finished by then.

Thinking of this, Xu Yunfei has an idea.

So he deliberately prepared to fight with the four men, but secretly thought that he would rush to kill Nie Tian while he was not prepared.

The four are also ready for the final battle. They all gather their strength and wait for the final attack to destroy Xu Yunfei.

Xu Yunfei's eyes flashed a smile. He commanded the mud dragon, suspended in the air, and then gathered a strong momentum in his hands.

However, Xu Yunfei seems to be attacking four people, but in fact he is aiming at Nie Tian. Chunyang Feifei thinks that the time is almost right, so she shouts, "attack!"

All of a sudden, four powerful energy quickly hit Xu Yunfei, at the same time, Xu Yunfei also launched his energy group, but the direction is toward Nie Tianfei not far away.

After finishing all this, Xu Yunfei didn't care much, so he flew up to avoid the attack of the four. At this time, the mud dragon was smashed to pieces.

But the next moment, the four finally reacted, it was Xu Yunfei to play.

See Xu Yunfei's strength air regiment fly toward Nie Tian's position quickly, at this time Lin Hao they also can't help, because it's too late.Nie Tian is in the heat of cultivation, suddenly feel that the situation is not good, but at this time he can't stop anyway, because once he stops, he may immediately die, or go crazy.

The situation is quite dangerous. Nie Tian has to close his eyes and thinks that if he is destined to die here, he can only admit his life.

However, at the critical moment, Leng Qiuyan appears directly opposite Nie Tian. Due to Xu Yunfei's attack, it's too sudden for Leng Qiuyan to resist. However, seeing that this energy is flying towards Nie Tian, she rushes directly in a hurry.

The next moment, the powerful air without stingy hit Leng Qiuyan's body, immediately issued a burst of explosion.

"Boom!"

Leng Qiuyan flew out upside down, and then hit the cave wall heavily.

After falling to the ground, she fainted after rolling on the ground for a few times, but blood flowed from the corner of her mouth and her chest was covered with blood. It can be imagined that Leng Qiuyan suffered extremely serious internal injury this time.

Nie Tian was very worried after seeing this situation, but he couldn't stop at this critical moment, so he closed his eyes, endured the sadness, and ran the mental formula of washing marrow and cutting bone at high speed, hoping to finish it as soon as possible.

But over there, Xu Yunfei saw that he was confused by okra. He was so angry that he decided to fly over to make up for it.

But the next moment he knew that he was wrong, because Lin Hao, Chunyang Feifei and other four experts were very angry.

Unexpectedly, Xu Yunfei took advantage and hurt his own people, so in order to make up for their mistakes, the four of them went out and were extremely angry and killed. Xu Yunfei was shocked by the sudden move. He immediately stepped back and quickly dodged and parried.

But after all, Xu Yunfei was outnumbered by many people, and because of the blow just now, he basically consumed more than half of his physical strength. Now if he continues to pester, he may have to explain it here.

It's true that he is the seven stars of heaven, but Lin Hao and his two younger martial brothers are also the seven stars of heaven, and Chunyang Feifei is even more powerful.

Thinking of this, Xu Yunfei's next step is to run away, so he looked at the door and saw that there was no guard, so he ran away. At this time, Chunyang Feifei seems to see Xu Yunfei's idea, and comes to the door ahead of time, intercepting Xu Yunfei's whereabouts.