Looking at the footprints that disappeared behind the stone chair, Mu Yun's heart moved, and he looked at the yin and yang diagram in front of him, the footprints disappeared in front of the yin and yang diagram, it was obvious that this yin and yang diagram was hidden in the mystery, but Mu Yun carefully observed for a long time, but never found the slightest clue, in desperation, Mu Yun's eyes fell on the seat in front of the yin and yang diagram. Pen "Fun" Pavilion www.biquge.info

After three steps, Mu Yun sat on the chair, and his hands involuntarily put on the armrests on both sides.

An imperceptible sound came from the armrest, making Mu Yun's heart move, and then his big hand darkened hard.

Boom! A roar came out behind him, Mu Yun turned around, and the yin-yang diagram suddenly separated from the place where the yin and yang were divided.

A circular passage appeared in front of Mu Yun, it turned out to be like this!

Looking at the open hole, Mu Yun's heart was excited, he turned over from the seat and got into the cave, the cave is a staircase, all the way down, about a hundred meters later, a passage appeared in front of Mu Yun, the road ahead is not spacious, but you can also walk two people side by side, less than ten meters, the field of vision is instantly broadened, this is a small palace, there is a flash portal on the left and right, and in the middle of the palace is a table, and at the door of the two portals, there is a futon, which makes Mu Yun very curious, and can't help but walk towards the futon on the right。

Almost instantly, a cold current surged, making Mu Yun shiver, and the whole person seemed to fall into an ice cave.

"It's so cold!" Feeling the sudden cold, Mu Yun's eyes couldn't help but look at it, the portal in front of him, the big hand reached out, the tentacles were as cold as ice, whew! With Mu Yun's big hand, touching the portal on the right, the gold and silver yin and yang in the upper dantian were originally stationary, and the silver fish in it suddenly began to rotate, and it drove the goldfish to rotate together.

"It's cloudy and cold!, could it be the other side?" Mu Yun muttered, turning and walking towards the portal on the left.

Just as Mu Yun's footsteps had just stepped on the bronze table in the middle, a blazing breath came towards him, which made Mu Yun's heart move, and surprise then spread on his face. Pushing open the portal on the left, the gold and silver yin and yang diagrams in the upper dantian suddenly began to run wildly.

Zhiyang Zhigang, just don't know what is behind this portal, curious, Mu Yun stepped into the portal on the left, the breath inside, more and more hot, this is a cave, flashing red luster, the air is filled with a blazing breath, along this cave all the way, Mu Yun's body began to appear large beads of sweat, the hot breath, gradually became unbearable, the sweat on the body was constantly evaporated, the temperature in the air, gradually made Mu Yun unbearable.

It seems that the front should be similar to the location of the underground lava, at this time Mu Yun did not dare to hold on, after retreating along the original way, Mu Yun looked at the portal on the right, don't think about it, this must be similar to the existence of a glacier, otherwise it is impossible to emit such a cold air.

At this time, Mu Yun didn't want to explore anymore, after all, whether it was magma or glaciers, it was not something that his current body could bear. Looking at the futons on the edge of the two portals, Mu Yun knew at this moment that these two futons must be the place where the fat and thin two people cultivated.

However, judging from the distribution of this Yin Yang Cave, the truly excellent cultivation place should be the back of the bronze table.

Thinking of this, Mu Yun walked to the back of the bronze table, where there was also a futon that was not gold or jade, and it was not made of any material.

"Try it!" With a thought, Mu Yun sat directly on the futon. The Yin and Yang Sutra operates, and the two air currents, one cold and one hot, swarm from the left and right, along the pores all over the body, and pour into Mu Yun's body.

Boom! Almost at the moment when the two currents of air, one cold and one hot, poured into the gold and silver yin-yang diagram, the yin-yang diagram, which was still atomized, suddenly shrank, and in an instant, there were signs of condensation.

His own strength has improved again, feeling the gradually condensed gold and silver yin and yang diagram, Mu Yun, who originally wanted to take this opportunity to complete the foundation building, was not so anxious, and was constantly urging the method of the yin and yang scriptures at the moment, and continued to refine the hot and cold qi that was constantly swarming, so that the gold and silver yin and yang diagram gradually became condensed.

It wasn't until the gold and silver divine light flashed on the yin and yang diagram that Mu Yun found that the swarming hot and cold qi was no longer easy to blend into.

"It's time to build a foundation!" Looking at the yin-yang diagram that was now only the size of a palm, Mu Yun knew that it was time to build a perfect foundation.

The Yin and Yang True Sutra Foundation Building Section of the Formula Operates, and the gold and silver Yin and Yang Diagram rotates, which seems to be faster than before, and at the same time, Mu Yun seems to feel the trembling of the sun and the moon in his eyes, and then a more fiery breath rolls in from the left eye, and at the same time, in the right eye, the torrent of Yin and Cold is endless.

Almost instantly, the originally condensed gold and silver two-color yin and yang diagram seemed to be unable to withstand the impact of these two forces, and in a crisp sound, the yin and yang diagram shattered, enveloping the two torrents of yin and yang, and spun rapidly.

Whew! If it's just that, forget it, but at this time, Mu Yun is the junction of the two caves of Yin and Yang in the depths, and the operation of the Yin and Yang True Scripture also attracts the two forces in the Yin and Yang caves, swarming towards Mu Yun's body, and finally pouring into the upper dantian.

Boom! The always quiet Yin-Yang Valley suddenly became restless in an instant, and in the sky above the Yin-Yang Valley, there were even more dark clouds, thunder converged, and thick lightning bolts, like thick long snakes, fell madly towards the valley below.

For a while, the entire Yin-Yang Valley seemed to have turned into a sea of thunder and lightning, which made those outer disciples who were in it panic for a while, and in the place where the Yin-Yang old monster was retreating, they let out an excited roar.

"Thief God, come on! Lao Tzu just wants to achieve Jindan Dao!" It was the roar of the old monster of yin and yang, with excitement, with rampant, a strong aura, straight into the sky.

Mo Changkong didn't know all this, but the lightning seemed to penetrate the ground, penetrate the hidden palace, and fell on Mu Yun's body, making Mu Yun's body tremble for a while.

"Damn! It's just a foundation, why did it attract a catastrophe?"