Song Qingfeng led everyone to the depths of the canyon. According to records on the map, there is a natural formation ban in the depths of the canyon. Some of them are formation masters, so there should be no problem if they want to break the formation ban.

Stopped, Song Qingfeng looked at a tall disciple, "Luo Chang, try to break the natural formation ban."

"Okay." Luo Chang nodded, released his spiritual sense and began to deduce the natural formation ban. The natural formation ban is different from the ordinary formation. Although it is the same formation, it is much more difficult.

After the arrangement was made, Song Qingfeng walked aside and took out the alchemy furnace to start refining the pills. Now he can only make two preparations. If he can open the formation ban, they can avoid the black fog. If he cannot break the formation ban, he can refine the detoxification pill and temporarily let some disciples survive the crisis.

The other disciples sat down in place and began to close their eyes and rest. They didn't know what they would face next, so it was necessary to maintain the best state. Only when they really encountered challenges could they face dangers in the best state.

The surroundings became quiet, with only a gust of wind, and the rustling sound of the fairy grass spinning in the alchemy furnace.

As time passed by minute by minute, the black fog slowly rushed towards everyone.

Luo Chang opened his eyes and raised his hand to throw out several array flags. After a slight sound of the natural formation ban in front of him, it changed into another formation, and the level was higher than the previous natural formation ban.

"How is this possible?" Luo Chang opened his eyes wide and looked at the natural formation ban in front of him with disbelief, his heart full of shock. This was the first time he had seen a natural formation ban that could be changed.

Looking back at the black fog that was already close, Luo Chang's cold sweat slid down from his forehead. Even if he wanted to deduce the natural formation ban, it was too late. What should I do?

Luo Chang looked at Song Qingfeng who was refining the pills. Now he could only look at Junior Brother Song, hoping that he could refine the detoxification pill before the black fog came.

With a long sigh, Luo Chang withdrew his gaze, closed his eyes and deduced the natural formation restriction in front of him again. He had to try it whether he had time or not.

Song Qingfeng raised his hand and slapped it, and nine detoxification pills flew out of the alchemy furnace. A furnace of elixirs can only be refined at most nineteen of them. There are nineteen of them, so he must refine three furnaces of elixirs. Time is definitely too late.

After putting the detoxification pill in the jade bottle, Song Qingfeng looked at Feng Yuhua, "Senior Brother Feng, you can first distribute these pills to disciples who understand the formation, and let them set up the formation first to block the black fog as much as possible." Now he can only bet.

"Okay." Feng Yuhua took the jade bottle and distributed it to several disciples who knew the formation.

After taking the pills, several disciples looked at each other and began to arrange the formation. Although they knew the formation, the formation level was not high. Except for Luo Chang, the only one with the highest formation level was Li Jianfeng, but he was only a level four formation master.

Array flags fell continuously, forming a defensive formation.

Everyone looked at the black fog that was rushing in. The next moment, everyone's faces changed, because the defense array could not stop the black fog at all, and the black fog directly penetrated through the defense array and rushed towards them.

"What should I do?" Everyone was so anxious that they broke out in a cold sweat.
Chapter completed!