The two of them rushed into the underground cave surrounded by fog at great speed.

The yellow fog was surging, and Chu Han instantly opened his powerful aura when he entered the dense fog, and the majestic aura enveloped the two of them, making the mist unable to get close to him.

Generally speaking, the fog surrounds the cave, and it is mostly the outer protection of the cave by the owner of the cave, according to common sense, the fog should have the effects of hallucination, poisoning, etc., which is enough for low-level monks to retreat a layer of skin, but for high-level monks like Chu Han, it is not a big problem to just isolate the fog.

After a while, the fog dispersed, and the two of them came to a wall made of spar, and the spar wall under the ground emitted a faint blue light, which looked extremely strange.

"The formation of the evil sect. Chu Han said after staring at the spar wall for a while.

"Senior brother, a little later, we have to hurry up and go in, and if there are too many people, it will be troublesome. After speaking, Chu Han patted the brocade bag on his waist, and several small flags moved in the wind, floating steadily behind Chu Han, and then Chu Han turned his hand, and a bronze compass appeared in his hand, the runes flickered, and it was extremely profound.

"Go!" Chu Han waved his hand, and six small flags burst out behind him, and finally suddenly stopped in front of the hedron wall.

Chu Han snorted lightly, and then the compass in his hand shone brightly, and the runes on it began to change and flicker, and then turned into brilliance.

At the same time, the six small flags began to shake violently, and obscure runes emerged from the small flags, and finally imprinted in the void, and a formation slowly appeared.

The compass in Chu Han's hand floated straight ahead, and then Chu Han's handprints changed rapidly, each handprint did not enter the compass, and the light suddenly became better than before.

"The six poles break the law, and ten thousand ways are born. Fight!"

With Chu Han's voice, the six small flags suddenly each held up a small magic circle of several feet, and then the magic circle gradually united, and a large formation with six small flags as the eyes of the formation was constructed, and suddenly appeared in front of the spar wall, and the fierce aura was stirred, and people couldn't help but admire the subtlety of the formation.

The aura turned into a pillar of light and shot directly at the center of the formation through the compass, and suddenly the runes in the formation flowed violently, and the entire formation was instantly activated by Chu Han's aura, and began to gradually coincide with the spar wall a few inches away.

Suddenly, the formation on the spar wall exploded from the void in an instant, and the astonishing aura slammed into the formation cast by Chu Han, and in an instant, the formation formed by the six small flags was also at suffocation.

Chu Han patted the brocade bag on his waist again, and six small flags flew out, followed by three jade tokens rushing out, and the last bronze bell floated to the top of Chu Han's head, exuding pure and clear aura ripples.

"Go. Chu Han waved his hand, and the six small flags flew first, and then the six completely different formations instantly merged into one when they came into contact with the original formation, the brilliant brilliance flowed, and the obscure runes once again flowed in the outlined formation, and an even more terrifying aura swept out, like an ancient barbarian beast that had been imprisoned for a long time.

When Chu Han's formation became stronger, the formation imprinted on the wall also quietly changed, and the seven-colored light began to shuttle through the formation, and the entire wall suddenly changed from clear to turbid and heavy.

"Ning Hong, it seems that this cave is not simple. Chu Han whispered, and there was a sense of excitement on his face, this level of formation was really rare.

Ning Hong?Mu Que instantly remembered the annotations he had seen in the scroll. The auxiliary of the formation in the world can be called the most but dozens of things, and this condensation is one of them, which can make up for the defects of the formation, and it is really the best auxiliary formation when it is held. It is also too rare to find, which is also its shortcoming.

Suddenly, an even stronger aura erupted not far away, which immediately interrupted Mu Que's thoughts.

The jade token was already embedded at the very front of the collision of the two formations, and the soft light began to slowly erode the ancient formations on the hedron wall.

At the same time, the formation on the spar wall was completely lit up, and the vast aura like the ocean collided, shaking the two people's bodies unstable.

Chu Han waved his hand and put away the twelve small flags and three tokens, leaving only the small bell above his head and the compass in front of him that was emitting a streamer. Then he nodded lightly to signal Mu Que to rest assured, and finally sat down on the spar wall and completely emerged the entire formation.

Time passed, Mu Que's heart became more and more nervous, and if the time went a little longer, I am afraid that this place would become extremely chaotic.

Suddenly, Chu Han opened his eyes again, the lilac light flowed under his eyes, and finally disappeared quietly, this magical scene did not make Mu Que notice, he only suddenly found that his senior brother's aura became more calm.

"Get ready to go in. After saying that, Chu Han put away the bronze bell above his head, and then the nine formation flags appeared again, and a more complex formation appeared in an instant.

At this time, Chu Han had already completely understood the formation condensed and engraved on the spar wall, and he was about to start breaking the formation.

The nine array flags did not form a single formation, but instead they spread out and floated in nine different directions to the hedron wall.

Chu Han urged the compass again, and the runes suddenly exploded from the nine array flags, and then imprinted in the void, and the extremely sharp aura instantly diffused, and the fierce feeling made Mu Que break out in a cold sweat.

Chu Han patted the brocade bag on his waist again, and a wooden gilt pointed token appeared between his fingers, and then Chu Han bit his fingertips, and used his red blood to continuously write nearly a hundred different runes on the token, and at the same time, a lot of sweat beads oozed from his forehead, and his face became slightly pale.

"The formation of the seniors is profound, and the younger generations have been taught. ”

After speaking, Chu Han bowed his hand, and then his fingertips moved slightly, and the token flew out and hit the formation of the spar wall.

After a short silence, the small formation formed by the nine array flags began to spread, and then strange runes began to spread out from the place where the token was located.

In a few breaths, the cyan light spread out of the Chu Han token had already covered the entire spar wall, and the rainbow's colorful light began to dim, and even the complex rune formation gradually dissipated, and the spar wall once again turned back to a clear and fragile appearance.

"Break the formation. Chu Han walked closer, raised his finger slightly, and lightly tapped on the cracked spar wall, and for a while, the wind suddenly rose, and the spar wall shattered and turned into fragments.

"Let's go. Saying that, Chu Han motioned for Mu Que to follow.

The two stepped over the place where the spar wall collapsed, Chu Han suddenly looked back at the fragments on the ground, and after a long silence, Chu Han walked over quickly, picked up a spar fragment and began to be silent, at the same time, Mu Que didn't say anything, just waited quietly beside him, with his strength, he couldn't help his senior brother anything, so he simply tried to make as little trouble as possible.

A quarter of an hour later, Chu Han dropped the fragment in his hand, chuckled a few times, and then waved his hand to signal Mu Que to come over.

"Senior brother?"

"Let's leave a circle here again, which will buy us a lot of time. Chu Han said.

Mu Que understood what his senior brother meant, and they would leave a magic circle here again to buy them more time to explore the cave. Mu Que nodded in praise, which was exactly what he wanted.

"You cloth first, I'll help you perfect it. But quickly. After saying that, Chu Han took two steps back, leaving enough space for Mu Que.

Mu Que first recalled the many formations he had seen in the scroll, and finally chose a simple formation called the Trapped Spirit Array, for him who had just come into contact with the formation, although he longed for the figure of his senior brother Chu Han, he knew that he should study hard in a down-to-earth manner, because everyone has a time when they are just starting out.

Exhaling lightly, Mu Que waved his hand and threw out a piece of spirit vine, which was something that he and Chu Han bought when they were preparing materials on the way here, Mu Que didn't expect it to be useful one day.

Immediately after Mu Que cut his index finger, bright red blood flowed out, Mu Que waved his hand and began to outline the runes, in addition to the formation carving knife specially used for engraving, using blood to create a formation is the most convenient and the best way that the power will not be attenuated too much.

The formation was gradually completely imprinted on the original spar wall, and when the last stroke was finished, Mu Que let out a sigh of relief, for him, this was not easy.

"Trapped Soul Array. Not bad. Chu Han nodded frequently after reading it, he understood that it was difficult enough for newcomers who had just started to depict the formation completely, not to mention that the little junior brother in front of him was right.

"Senior brother is ugly. Mu Que said embarrassedly.

"It's okay, one step at a time. After saying that, Chu Han waved his robe sleeves, and several drops of blood flew out, and then a more refined formation appeared in the trapped spirit array built by Mu Que, and the originally smiling aura disappeared without a trace after the explosion in an instant, but if you feel it carefully, you will find that the aura in the formation is surging.

"Let's go. Chu Han patted Mu Que on the shoulder and smiled slightly.

The crystal wall in front of the two of them stood there again, but the formation on it was already different, and instead of the previous formation was a weaker new formation, although it couldn't be stopped for too long, but it had already bought a lot of time for the two of them.

At this time, Mu Que and Chu Han rushed deeper again, they understood that since they came first, they must take advantage of this time difference to search for the opportunities they could get.

"Looks like we're going to speed up. Chu Han, who was really not far in front of Mu Que, suddenly said in a deep voice.

At the same time, the fog around the hedron wall boiled again, and someone was here.