At this time, Xiao Qianhan had already blocked everything around him, only the floating ball of spirit grass in his eyes, because of the fusion of various spirit grasses, it became colorful and really beautiful. There was no appreciative look in her eyes, she was concentrated. In her eyes, the spirit grass group seemed to have been divided into countless small pieces, and what happened in each small piece was seen by her and responded to it.

As time passed, a layer of fine sweat had appeared on her forehead and temples, which was a sign of too much concentration. If it was an ordinary person, it would be invaluable to maintain a quarter of an hour in such a state. And she kept it for several hours, and it's still going on.

Gradually, the sweat on her forehead became more and more, her back was already wet with sweat, and there were signs of expansion. And the color of the spirit grass in her hand has become more and more bright, and the four colors are gradually merging, and finally turned into one color!

The biggest hurdle is finally here! Tianhuishen mud was successfully integrated!

At this time, a faint smile appeared on the corner of Xiao Qianhan's mouth. He controlled the spirit grass ball with one hand, and took out a few pills to restore spiritual power with the other hand. If it was someone else refining the Heaven-boosting Pill, they could have stopped and rested here to restore their energy and spiritual power, but she didn't.

The less people know about the Tian Bu Tian Pill, the better. Therefore, she must succeed in refining as soon as possible. Moreover, such consumption is also within the range of her tolerance.

A powerful soul not only has great benefits for cultivation, but also plays an important role in alchemy that cannot be ignored.

As the spiritual grass group gradually merged, the dark clouds in the sky seemed to be pulled in some way, becoming denser and darker. There were occasional lightning flashes amid the dense cloud cover.

However, these did not affect Xiao Qianhan's mood at all. In her eyes, there is only that mass of Tianbuying Pill that is gradually taking shape.

For the rest, she needed to use her continuous spiritual power to control the temperature without rushing, so that the grass ball would slowly undergo qualitative changes.

Qian Zi, who is Wan Ding Yin Ding Ling, is even more nervous than Xiao Qianhan at this moment. His eyes are fixed on the grass ball for a moment, and he looks away from time to time to glance at the dark clouds in the sky, with a solemn expression on his face.

Feng Lie's spirit is still in Feng Lie's sword, but the sword is standing upright, and he must be very nervous.

"Qian Zi, what level of thunder will you say for a while?" The tense atmosphere was very depressing, and Feng Lie's spirit consciously wanted to relieve that depression.

"I don't know." Qian Zi's eyes didn't move, she shook her head and said, "Anyway, it must not be weak. The Heaven Replenishing Pill is the top ten anti-sky pills! Moreover, the thunderstorm weather is said to have the effect of enhancing the sky thunder. If I had known that the weather was like this today, I would have to ask the master to practice it another day."

"It's useless to say these things now. The medicine pill is about to take shape, and it is impossible for the master to give up." Feng Liezhi said in one sentence. Recently, he had a better understanding of Xiao Qianhan's temperament.

"It's useless, what's wrong! Can you tell me something useful?" Qian Zi suddenly became unhappy, and threw a word from Feng Liezhi.

Feng Liezhi's spirit was not surprised, and did not dare to refute, so he just calmed down.

Seeing this, Qian Zi couldn't continue to get angry. After staring at the spirit grass group for a while, he sighed and said to Feng Liezhi: "You actually know very well that you can resist the thunder on the Tianlei Mountain. Although the thunder for a while, whether you can resist it doesn't matter. I know, but if it hits you, the damage must be less than the master's. You can't..."

"Qianzi, don't say it anymore." Feng Liezhi Ling's tone was slightly solemn, and he said solemnly, "I can have today's change, and the master has made great contributions. If it wasn't for the master to find the sky grass, if the master didn't help me with the sky grass. Separated, if it wasn't for the master's Feng Liejian, I wouldn't be who I am now. So, she is my master. However, I am different from you. Before you met your master, you were the Dingling of Wan Ding Yin. After I met my master, I became the sword spirit of Feng Liejian. There are essential differences. Without Wan Ding Yin, there would be no you. But without Feng Liejian, I am still me."

Qian Zi was speechless, but the expression on her face was obviously very complicated, and she hesitated several times.

Seeing this, Feng Liezhi also sighed with a rare sigh, "And we don't know the master's arrangement at all. What if it suddenly appeared and broke the master's plan?"

Qian Zi was silent for a long time, and finally said a word, and then she kept silent, "Anyway, if the master is in danger, I will definitely rush out to raise the master to block the thunder!"

The Spirit of Feng Lie then became silent, and the Feng Lie Sword was still standing in the air.

Outside, Xiao Qianhan had already blocked Wan Dingyin, and she couldn't hear the conversation inside. In other words, she has blocked everything around her that can affect her alchemy.

The only thing that can make her concentrate fully is the spirit grass group. To be precise, it was a spirit grass ball that had just begun to form an elixir.

The sky has completely darkened, like the middle of the night. The moon was hiding above the thick clouds, and there was no light visible.

Thanks to Xiao Qianhan's continuous efforts, Tian Bu Tian Pill finally took shape. After more than two hours, finally a scent of Dan Xiang slowly drifted out.

The Danxiang is very light, and the smell makes it easy to indulge in it. As soon as Danxiang came out, all the beasts in the mountains were quiet. Even Long Yu and Yuan Shu were almost intoxicated. If Xiao Qianhan hadn't reminded them, they would have lost their ability to guard now.

When Xiao Qianhan smelled this Danxiang, not only did he not indulge in the slightest, but his spirit was shocked.

The appearance of Danxiang means that Tianbuying Dan is about to become a Dan. When a pill is formed, it is when the thunder appears.

As if to confirm Xiao Qianhan's thoughts, the color of the dark clouds in the sky became darker and darker. Above her head, there is a black cloud of pure black, there is no doubt that the thunder will be issued from this black cloud.

Feeling the black cloud, Xiao Qianhan breathed a sigh of relief. The thunder of the sky is also classified into different levels. The power of the thunder that falls from the dark clouds of different colors is different, and it can even be said to be worlds apart.

The ordinary dark clouds fell, the thunder with the lowest power, not to mention the cultivator, even the stronger beasts could not be killed. Stronger than the dark cloud sky thunder is the sky thunder that falls from the dark green dark clouds, which can kill humans with higher cultivation bases. No matter how powerful it is, it is the thunder that falls from this black cloud.

There are only a few people at the Tiandao Conference who can resist the black clouds and thunder. Fortunately, her current strength is just enough to resist the black clouds and thunder. Even if she didn't escape, she didn't have to worry about dying here.