The seventh tuyere lit up with Mutong's approval, and the eighth tuyere also lit up a little red.

Yang Xuan's forehead has begun to emit fine beads of sweat. Lighting the tuyere is not just as simple as injecting spiritual power into it. Yang Xuan must be able to accurately control the temperature control array at the tuyere, and the flame ignited by Yang Xuan will not get out of control, so it can be regarded as lighting a tuyere.

In the first five tuyeres, Yang Xuan lit them easily, and in the sixth and seventh, Yang Xuan had to clench his teeth to separate part of his mental power to control the two tuyeres.

In Yang Xuan's mind, there are still many spiritual forces entrenched in the depths of the sea, but whenever Yang Xuan wants to try to pull these spiritual forces, he will feel his head burning like a fire.

"Is seven vents the limit?" Mutong looked at the struggling expression on Yang Xuan's face, smiled and said, "boy, the seven tuyeres have been very powerful. If you can't hold on, don't hold on any more. Be careful of getting hurt."

As soon as the wood voice fell, he saw the expression on Yang Xuan's face suddenly relaxed.

Just now, Yang Xuan suddenly thought of something. If he wants to calm down the sea, in fact, he only needs to display the ternary purification formula. When he displays the Liyan formula, there are as many spiritual powers of the ternary purification formula passing through his body. These spiritual powers that would have been wasted might be the best if they were used to keep himself calm.

Yang Xuan thought so, and controlled the spiritual power of the three Yuan pure formula to run away in his mind. He has done such things many times. Naturally, he is very skilled. The familiar coolness came from the middle of his eyebrows, which made Yang Xuan's head cool as if he were in a stove.

At this time, Yang Xuan was pleasantly surprised to find that those spiritual forces that were entrenched in the depths of the sea and did not move no matter how he pulled, now actually moved, and the movement was so natural.

A large number of spiritual power poured into the Ziyang tripod and transmitted the situation of each part to Yang Xuan's mind. Then, the Qi wheel rotates rapidly, and the spiritual power surges out quickly.

The expression on bucket's face suddenly changed. He found that Yang Xuan in front of him seemed a little different, but he couldn't tell what was different.

This was the first time that Yang Xuan used two kinds of skills at the same time. Before that, because there was a conflict between the two spiritual powers, and there was a repetition in the meridians of the two skills, it was almost impossible for Yang Xuan to use the two skills at the same time.

But now the two kinds of spiritual powers are integrated together in an incredible way. Before leaving Yang Xuan's body, they can still live in peace. This strange way of exercising power has also brought an unprecedented experience to Yang Xuan.

Yang Xuan only felt the spiritual power in his body, just as Jihong in the mountain found a vent in an instant, surging out of his body.

The eighth tuyere on the Dan stove also lit up in an instant, followed by the ninth, tenth and finally sixteen tuyeres, and 15 of them lit up.

Because he was too surprised, Mutong couldn't even close his mouth. But he quickly reacted and looked at Yang Xuan. Yang Xuan's spiritual power surged out of his body, and even the last spiritual power to stick to his original heart was ready to move.

Yang Xuan's eyes became more and more fanatical.

Although Mutong, who has been cultivating his spiritual power for many years, has never seen such a situation, he can also see that if Yang Xuan goes on like this, he will inevitably become a walking corpse. He immediately slapped Yang Xuan on the shoulder and separated Yang Xuan from the Danlu.

Yang Xuan's fanatical eyes calmed down a lot, and he immediately felt a stabbing pain in his head.

He looked at the elder Mutong and saw the expression on Mutong's face. Coupled with the uncontrollable situation just now, Yang Xuan also knew that he seemed to have done something stupid. He immediately scratched his head and said, "thank elder Mutong for saving his life."

"Thank me for what I do. You should thank you for your spiritual strength. Otherwise, you would have lost your heart and become possessed." Mutong snorted coldly, but the bottom of his eyes was a burst of surprise. Although he covered up well on the surface, he was already stormy at the bottom of his heart.

A person's spiritual power is limited, and the spiritual power of ordinary people will not grow for a lifetime. Of course, both friars and Dan masters will increase the total amount of spiritual power with the improvement of cultivation. In addition, Dan master has a unique way to cultivate his spiritual power, so if you only look at the realm, his spiritual power is much stronger than that of monks with the same strength.

But even so, Mutong was surprised to find that the spiritual power just burst out of Yang Xuan was more than ten times the total spiritual power of Mutong. Such terrible spiritual power, Mutong is the first time to really see it.

But he thought about it and didn't tell Yang Xuan about it. He just said angrily, "you're really crazy. Don't do this thing in front of me in the future."

At this time, those surging mental forces returned to Yang Xuan's knowledge of the sea, and the pricking pain in Yang Xuan's mind was relieved a lot.

After a while, Yang Xuan finally slowed down and looked at the wooden channel: "elder mu, do you want me to light up some air vents?"

Hearing Yang Xuan's words, Mutong immediately felt his scalp numb. Long Bupo is protecting the Dharma in the distance at this time, and Mutong's strength is not as good as Yang Xuan. If he happens again later and asks Yang Xuan's parents to come to the door, Mutong thinks he doesn't have the ability to fight them.

He thought for a while and said to Yang Xuan, "only six tuyeres are enough. If you have spare power, open eight tuyeres."

In fact, the more tuyeres, the better, of course, but generally speaking, even the top Dan division in the impression of Mutong can only open ten tuyeres, except for the boss who could open 14 tuyeres casually hundreds of years ago.

As for the sixteen tuyeres, perhaps only those who have proved the throne in ancient times and only choose to stay in the world can do it.

Yang Xuan nodded and lit eight tuyeres according to the requirements of Mutong.

The fiery red tongue spits out from it, just like a fierce beast trying to get out of the cage. It seems a little ferocious. Yang Xuan still tries to run the two skills at the same time, but this time he didn't get out of control as last time.

Seeing that Yang Xuan had no problem, Mutong was relieved and began to prepare the medicinal materials needed for alchemy.