The Mei sisters, staring at Mu Feng's figure, they also heard Mu Feng say that in this cold pool, there is a kind of spiritual fire bred between heaven and earth.

This kind of spiritual fire is absolutely unattainable, and its value is incalculable.

Even, this thing is a heaven and earth artifact that even some peerless powerhouses are crazy about!

If an alchemist obtains a spiritual fire, it is tantamount to adding wings to a tiger.

At this time, Mu Feng came to the lake, stretched out a finger, and probed towards the lake.

The charm demon covered the cherry mouth, and a pair of huge white rabbits on her chest trembled violently, showing the uncalm heart in the girl's heart.

And the white and tender soft wattles of the charming city are clenched, and the fragrant sweat can't help but ooze.

Mu Feng's dark eyes were also full of solemnity.

Look at the blue flames on the surface of this lake, soft and beautiful. However, Mu Feng knew that once he touched them, it would be like stabbing a hornet's nest, and it would usher in a fatal burn.

The stones thrown by the demon are an example of this.

Mu Feng saw a slight sweat on his forehead, and he didn't know if he could withstand the burning of this flame. However, with such a spiritual fire in front of him, how could he give up.

You must know that the spiritual fire is something that is coveted by the peerless ruthless emperor level, but he has not obtained it in his life.

Airplanes!

Just when Mu Feng's fingers felt a cold and piercing feeling of tyrannical heat, his mind suddenly shook.

Wow~~

The Ancestral Dragon Emperor's Honor in the Sea of Knowledge suddenly turned to a page, and Mu Feng's pupils shrank: "Dragon Yan Jue"!

"Ancestral Dragon, the ancestor of the peak of all souls. Control all the fires, and surrender ......"

Mu Feng's body shook, and his eyes flashed with ecstasy.

It turned out that the Ancestral Dragon Emperor's Honorable Classics were all-encompassing and vast.

Among them, there is an article on the control of flames. And this Extreme Blue Flame was extremely extraordinary, touching the opening conditions of the corresponding chapter of the Ancestral Dragon Emperor's Honorable Canon.

"Whew!"

Just when Mu Feng was stunned, the young man's eyebrows moved, and a golden light shot out, directly piercing into the extremely blue flame.

Rumble!

The Extreme Blue Flame seemed to have been provoked, and he was extremely irritable.

This made the Mei sisters standing in the distance startled.

Airplanes!

At this moment, above Mu Feng's body, there was a golden light.

The terrifying coercion slapped directly at the irascible Extreme Blue Flame.

The light blue flame, which was still restless just now, was extremely supple in an instant, like a kitten.

"It's... This ...... "The two beauties in the distance are jaw-dropping!"

This teenager gave them too much shock.

Like a greedy child, the pale blue flame drilled into Mu Feng's eyebrows and injected directly into the golden classics.

Slippery!

It wasn't until he had eaten more than half of the entire lake that he felt like he was full, and he made a pleasant sound and fell silent.

At this moment, Mu Feng's eyes flickered, and the "Dragon Yan Jue" had been preliminarily mastered.

The ancestral dragon controls the ten thousand fires of heaven and earth, and is even able to devour and fuse countless flames, creating a higher level of dragon flames!

As soon as the dragon flame came out, it burned all things in heaven and earth, and there was nothing to stop!

Hiss!

Even if Mu Feng had expected it, he couldn't help but gasp. At the same time, looking at the extremely evil blue flames in the entire lake, there was a look of ill will in his eyes.

"Haha!"

With a hearty laugh, Mu Feng's palm seemed to have some kind of ancient pattern revealed. Then, in the shocked eyes of the Mei sisters, an arm pierced directly into the Extreme Blue Flame Hubo.

Click!

The cold meaning spread directly along Mu Feng's arm, and it was extremely fast. Even in the end, Mu Feng's entire body was shrouded in a layer of cold ice and turned into an ice sculpture.

"Sister, Mu Feng's pot won't freeze to death. Rubbing his little hands, the hot demon asked with a wink.

Shaking her head slightly, Mei Chengcheng's pretty face was also full of solemnity, and she didn't know this situation.

Click, bang!

At this moment, the cold ice that shrouded Mu Feng spread one after another, and in the end, it directly burst into powder!

"Cool!"

Mu Feng let out a loud roar, jumped his body, and jumped directly into the lake.

The pale blue flame directly enveloped the boy. Above Mu Feng's body, there seemed to be some kind of ancient pattern emerging, and the flame containing the scorching meaning in the cold followed Mu Feng's open mouth and penetrated wildly.

Hiss!

Once the light blue flame entered Mu Feng's body, it was compressed and tempered by Mu Feng's "Dragon Flame Technique", and finally turned into a small flame that floated above the golden cyclone.

And as the vast blue flame like a lake continued to swallow and inject, the color of the small flame became deeper and deeper.

Just by looking at it, there is even a contradictory feeling that the soul is frozen but burned.

The yin and evil qi in the extreme evil blue flame was constantly swallowed and poured into Mu Feng's body, tempering Mu Feng's muscles, making Mu Feng's physical body continue to become stronger!

Even, the killing sword intent that he mastered, under the nourishment of the evil qi, had a feeling of wanting to break through.

Zizi~

The boy sat cross-legged and continued to refine. The whole process lasted for up to a month. And at this time, the little eagle in the cave mansion has a demonic aura that is constantly getting stronger, and above the cyan feathers, streamers are flickering, as if they are extremely hard steel!

However, from a distance. I saw Mu Feng sitting cross-legged, his sword eyebrows frowning slightly.

Because, he found that the spiritual fire above his dantian was extremely sluggish. Even if you continue to refine yourself, you can use it for yourself as you become familiar with it.

However, there is a lack of agility. You must know the spiritual fire, and there is a spiritual fire between heaven and earth. Even, some spiritual fires that have gone through infinite years have produced spiritual consciousness and can cultivate independently, which is extremely terrifying.

"What's missing?"

Mu Feng's eyes showed a deep groan.

Suddenly, the golden classics in the sea of knowledge were shocked.

"What's down there in this lake?"

Mu Feng was guided, and his body plunged directly into the lake, and the extremely evil blue flame at this time did not hurt Mu Feng at all, and even felt comfortable.

And if someone else touches it, it will usher in deadly tyrannical freezing and burning!

"It's... Spiritual Fire Essence?"

It's just that there is such a word from the memory of the peerless ruthless emperor, when Mu Feng saw the bottom of the lake, a dark blue, finger-sized spiritual fire flowing like magma, and was surprised.

"No wonder, I always feel that something is missing, it seems, that's it. ”

The purple lightning flashed in Mu Feng's eyes, and he couldn't hide his excitement!

"Refining!"

Mu Feng's fingers stretched out towards the dark blue magma-like spiritual fire essence. In the palm of his hand, the ancient lines of Xuan Ao spread, sneering and winding towards the blue essence.

"Shhh

Even if he had been prepared, Mu Feng couldn't help but shudder.

It's cold and biting, and it's burning to the heart.

Two conflicting energies drilled into Mu Feng's body and raged.

"Still want to roll over the waves?"

A sneer appeared at the corner of the young man's mouth, and he held the essence of spiritual fire with his palm, and shook it fiercely......