"Let's just go!" Yun Fei glanced around with satisfaction and took out the dark little stone from his arms.

After coming out of the Heavenly Spirit Tree Realm, Yun Fei mastered the method of using spiritual energy. Because of this, the "spiritual energy" that Yun Fei possessed in the mysterious energy far exceeded before. Only with this mysterious energy soaking the stones could Yun Fei obtain this eighth-grade mysterious skill in a short period of time.

"Come on! Let me see how big your appetite is!" Yun Fei sat cross-legged, and the mysterious aura in his body roared out like an angry dragon, and rushed towards the stone with a roar.

The stone was quietly suspended in the air, absorbing Yun Fei's mysterious energy like a bottomless pit. Except for the slight glow on the surface, there was no abnormal movement.

A blurry figure appeared on the glowing surface of the stone, and the figure rotated around the stone, as if it was never tired.

Yun Fei was extremely familiar with everything. The fur he learned was the shadow that appeared on the surface of this stone.

Now, what Yun Fei wants to learn is the true essence of this eight-grade mysterious skill!

From past experience, we can know that this is a protracted war and Yun Fei has made sufficient preparations.

Yun Fei's eyes closed slightly, he pointed at the stone in front of him with one hand, and pointed the other at the Xuanchi pool under his feet. The continuous stream of mysterious liquid poured into Yun Fei's body from the soles of his feet, and after processing his eighth-grade exercises, he was then sent to the stone.

"Woo..." In the depths of the Xuanchi Pool, the mysterious energy soared, and Yun Fei was practicing his mysterious skills in full swing.

The originally extremely thick milky white mysterious liquid has become a wisp of fine pure mysterious energy after being processed and purified by Yunfei's processing plant.

Yun Fei was like an old monk entering into meditation, repeating the same movements without any rush or impatience.

Deep in the Xuanchi Pool, the boring cultivation continues, and Yun Fei is in a state of deep cultivation and has no idea about the passage of time outside.

I don’t know how long it took, Yun Fei slowly opened his eyes. He looked at the stone in front of him, and a blankness flashed through his eyes, and he changed into a look of surprise.

The originally dark stone had completely disappeared and turned into a crystal clear piece of jade. Above the jade, a small human-shaped shadow was flying rapidly, looking extremely mysterious.

"Finally...has it succeeded?" Yun Fei's voice was a little hoarse. He tried to move his limbs and found that his body was extremely stiff.

"It's so hard, time passes so fast." Yun Fei smiled bitterly. According to his past experience, to reach this level, it is possible to reach at least ten days of meditation without eating or drinking.

Yun Fei's thoughts moved, and the mysterious energy of the yellow earth instantly flowed through his limbs and five bones, revitalizing Yun Fei's body.

"Hu..." Yun Fei let out a long breath, stretched his waist, and moved his muscles and bones.

"Now, let me see what is magical about this eight-grade mysterious skill." Yun Fei reached out to hold the stone and carefully looked at the shadow above.

After a while, Yun Fei rubbed his head and asked helplessly: "Old ghost, are you still hiding to watch jokes?"

"Haha..." The old ghost smiled and said, "Congratulations to the master, you have learned another eighth-grade mysterious skill."

Yun Fei shook his head and said, "I can't do anything about this thing. Where did I get the eighth-grade mysterious skills?"

The old ghost said: "The mysterious energy required by this stone is enough. There is no clue yet, so it means it needs something else."

"What do you need?" Yun Fei couldn't help asking, "It's not spiritual energy, right?"

"Master is wise!" The old ghost's joking voice sounded, "Since this thing is an eighth-grade mysterious skill, it naturally requires the iconic material of the real human realm power to be able to be activated."

Yun Fei couldn't help but frown and sighed, "Oh! The fake eighth-grade mysterious energy is not the real eighth-grade mysterious energy after all, so it seems that it still has to use spiritual energy."

In fact, Yun Fei knew that using spiritual energy was the best way, but over the past period of time, Yun Fei had deeply realized the importance of spiritual energy. He was reluctant to use the spiritual energy in his dantian to open this stone.

"Oh! I didn't expect that I still need spiritual energy in the end after working so long." Yun Fei said with a regretful look on his face.

There is only so much spiritual energy in the dantian. Yun Fei’s method of accumulating spiritual energy is very slow now. Every time he uses a trace of spiritual energy, Yun Fei will feel distressed for a long time.

The old ghost advised: "Master, you have done a good job. Your pseudo-eighth-grade mysterious energy has reduced the requirements for spiritual energy by this stone a lot. Now, I can tell the master a good news in advance."

Yun Fei asked listlessly, "Oh? What good news?"

Lao Gui said: "At present, the eighth-grade mysterious skill in the master's hand is quite similar to "Shadow Martial Arts"."

"What do you mean? Are you saying that these two mysterious skills are equally powerful?" When talking about the eighth-grade mysterious skills, Yun Fei suddenly became interested.

Lao Gui explained: "There are two ways to inherit the eighth-grade mysterious skills. One is like the "Qihe Tianyuan Stick" left by the old master. This mysterious skill requires the inheritor to use the heart technique and skills, and then be able to learn it with dozens or even hundreds of years of hard practice. The other is like "Shadow Martial Arts", the controller of the mysterious skill leaves the charm of the mysterious skill. Later generations only need to accept all the things left by their predecessors to easily learn that mysterious skill."

"What you mean is that as long as I open this stone, the eighth-grade mysterious skills in the stone are actually not difficult to control?" After hearing the old ghost's narration, Yun Fei's heart suddenly became hot. He looked at the stone in front of him, and a trace of determination flashed through his eyes.

"Come on!" Yun Fei reluctantly gave up his love, and brought out a wisp of purple aura from the depths of his green dantian, and sent it to the stone in front of him.

"Buzz..." After the wisp of spiritual energy entered the stone, the stone began to tremble, and the shadow on the surface of the stone also flowed faster and faster.

After a while, the stone actually returned to quiet again.

"What? Still no?" Yun Fei gritted his teeth and re-energized a wisp of spiritual energy.

"Bang!" The second ray of spiritual energy entered the stone, and the stone exploded with a bang, and a colorful shadow popped out from it and rushed towards the air.

"Master, chase after me! Don't let the shadow run away!"

The old ghost's harsh shout exploded in Yun Fei's heart, and Yun Fei chased him into the air without thinking.

"Swoosh..." The floating shadow was at its peak and disappeared into Yun Fei's eyes in the blink of an eye.

"Damn!" Yun Fei couldn't help but swear. He worked hard to instill the mysterious energy for ten days and spent two strands of spiritual energy in Yun Fei, and disappeared in the blink of an eye!

"No! You have to catch up!" Yun Fei made up his mind that even if he chased to the end of the Xuanchi Pool, he would have to chase this eighth-grade mysterious skill.

"Swish..." Yun Fei's figure cut through the white mist at the height of Xuanchi Pool and came to the highest point of this Xuanchi Pool space.

"Where is it!" The old ghost instructed Yun Fei to look to the upper right.

Yun Fei turned his gaze and saw a colorful shadow wandering in the sky.

"That thing... is trapped in the space barrier." The old ghost observed carefully and immediately discovered the space wall around the floating shadow.

"This thing is so fast! In just a blink of an eye, it has reached the edge of this Xuanchi space." Yun Fei was secretly surprised. After seeing the thing trapped in the space barrier, his hanging heart gradually relaxed.

The old ghost said with lingering fear: "After all, this thing is just an eighth-grade mysterious skill. Without the control of a powerful person in the real world, it can still make a big splash!"

"It's good if you didn't run away." Yun Fei slowly rushed towards the other side. He could clearly see the existence of the space barrier and did not have to worry about accidentally falling into the space barrier.

Soon, Yun Fei came to a location not far from the colorful shadow. Looking at the colorful shadow that was so close, Yun Fei couldn't help but smile bitterly: "This thing is really a disaster. I don't know what it is at all, so I have wasted two of my spiritual energy."

The old ghost smiled and said, "Master, don't be busy scolding first. You will use the third wisp of spiritual energy soon."

"Oh!" Yun Fei sighed and pulled out a wisp of spiritual energy from his dantian again. If Yun Fei wanted to pierce a hole in the barrier of space, he still had to use the spiritual energy.

Yun Fei condensed the transparent mysterious energy into a needle-shaped shape. A purple lingered in the position of the needle, slowly leaning towards the barrier of space.

"Puff..." A slight sound rang out, and the needle penetrated a small hole in the space barrier. The colorful shadow trapped inside immediately rushed out along the small hole, and wanted to escape to the distance.

"Hmph! I still want to run!" Yun Fei snorted coldly, grabbed the shadow, and swallowed it into his stomach without saying a word.

Yun Fei's thoughts moved, and the transparent mysterious energy wrapped around the colorful light and shadow along the meridians and came straight to Yun Fei's legs. Then the mysterious energy faded away, and the colorful light and shadow slowly melted into Yun Fei's legs.

""Infinite Steps"!" The colorful shadow entered the body, and the name of the mysterious skill also appeared in Yun Fei's sea of ​​consciousness at the same time.

"Infinite Step"! The mysterious skill created by Feng Zhenren before the war between Gods and Demons is an eight-grade mysterious skill that pursues the ultimate speed. If used by a high-level real person, it can reach a terrifying speed that ignores space!

"No wonder it's called "The Unbreakable Step". It turns out to be so powerful." Yun Fei couldn't help but exclaim.

"How is it? Master, are you happy?" The old ghost's voice rang.

Yun Fei said happily: "That's more than anything? Of course I'm happy." After obtaining "The Uninterrupted Step", Yun Fei completely threw away the three lost strands of spiritual energy behind his mind.

The old ghost said in a strange voice: "Master, since you have learned "The Uninterrupted Step", then use it now."

"No, no hurry. Let me study it carefully and master the mystery of this mysterious skill." Old God Yun Fei replied on the spot.

"Master." The old ghost's voice was a little hoarse, "You'd better use it now. I'm afraid there will be too late."

"When is it too late?" Yun Fei asked in surprise.

"Look at it yourself!" The old ghost said this without thinking, and then fell completely silent.

"What do you think?" Yun Fei looked up blankly and looked around.

"My God! Is this... space collapse?"
Chapter completed!