Luo Feng walked down the crack.

The further you go, the more the crack slopes downward, like a treacherous cliff.

"It's really dangerous, if ordinary people come here, I'm afraid they will roll down directly. ”

Luo Feng didn't worry too much, the terrain in some places was too dangerous, so he directly used a volley step to cross it easily.

Whew......

Gusts of hot wind blew from below, sending out a low echo, and the air was unusually dry, as if the slightest spark would burn violently.

"This crack is so deep, weird!"

After walking down for half a column of incense, before it was finished, Luo Feng felt the boiling hot wind coming to his face, and he was vigilant in his heart, holding the Tiger Spirit Knife in his hand, and carefully continued to grope downward.

The incident of accidentally entering the lair of the manticore-tailed fire lion just now still made him feel palpitations.

This kind of weird place, you have to be careful.

I don't know how long it took, the heat on Luo Feng's face became a little faster, and he was suddenly in a good mood, speeding up his pace, and at the same time holding the Tiger Spirit Knife, his vitality was ready to go out in his body.

The ground, which was originally sloping downward, gradually flattened and the field of vision gradually widened.

The surrounding area is no longer pitch black, the rock walls here are very special, smooth as a mirror, and they emit a hazy crimson light, making the cave as bright as day.

Call......

The hot air flow came to his face, and Luo Feng's vision suddenly opened up.

In front of me was an extremely open underground hinterland, like a square, in which there were many rocks, all red stones, emitting a hazy firelight.

In the middle of the hinterland was a pool of fire tumbling with crimson magma, from which the scorching waves of qi emanated.

The fire pool was ten zhang in size, and with the sound of gurgling, bubbles the size of fists continued to explode inside, and a trace of dark black flames emerged from it.

These dark black flames, after coming out of the bubbles, did not go out, and just suspended above the fire pool, forming a dark red fire cloud above the fire pool.

"Hey, it's the fire in the center of the earth!"

Luo Feng saw the dark red fire cloud above the fire pool, his breathing was a little tighter, and his eyes bloomed with a thick color of surprise.

This dark red fire cloud was filled with a rich fire energy, dozens of times, or even hundreds of times, richer than the magma in the fire pool! It faintly revealed a momentum that burned all things, as if it were a living thing.

That special burning sensation came from this dark red cloud of fire.

When Luo Feng was in the academy, he had heard the introduction of the Earth's Heart Fire from Ji Wuyue's mouth.

The fire in the center of the earth is dark red, the flame is like silk, and the temperature is much higher than that of ordinary flames, which is both flame and evil qi, containing the potential of destruction.

The dark flames emerging from the bubbles of the fire pool in front of him must be the fire in the center of the earth!

"I didn't expect that I would find the Fire in the Heart of the Earth by mistake!"

Luo Feng looked at the fire on the fire pool, the condensed fire in the center of the earth, and his eyes were a little excited.

The fire in the center of the earth is one of the most ferocious evil spirits between heaven and earth. It is the most suitable for cultivating the Heavenly Demon Sword Technique.

It's just that the fire in the center of the earth is generally tens of thousands of meters deep, and it is difficult for ordinary people to find it.

Because of this, Luo Feng had never had the intention of using the Earth's Heart Fire to cultivate.

This time, he was chased by the Scorpion-tailed Fire Lion, and he broke into this crack by mistake, and actually found the fire in the center of the earth, which really scared Luo Feng!

If he can cultivate the Heavenly Demon Sword Method to the sixth level, his strength will definitely be able to go further!

"The Scorpion-tailed Fire Lion shouldn't be leaving for the time being, so I might as well cultivate here. ”

Without further ado, Luo Feng inserted the Tiger Spirit Knife at his side, faced the magma fire pool, sat cross-legged, and the whole person entered a state of cultivation, gradually entering the realm of forgetting things and me.

Hiss......

The moment Luo Feng closed his eyes, a series of bubbles suddenly gushed out from the fire pool in front of him.

The crimson magma in the fire pool rippled in circles, and the magma in the middle was slightly raised, as if a person had emerged from the fire pool.

Above the bulging magma, there are two black holes, like human eyes.

Those strange eyes stared at Luo Feng, slowly approaching the direction where Luo Feng was, the empty eyes, the depths of the cold light flashing, as if it was a black hole, to suck people's souls into it.

Airplanes......

At this moment, Luo Feng had already entered the cultivation state, and faint fluctuations came out of his body.

The air around him shook slightly, and ripples spread around.

The fluctuations spread to the earth's core fire evil qi mass on the fire pool, as if pulled by some invisible force, the earth's core fire turned into a trace of black flames, rushing towards Luo Feng, drilling into his body along the pores.

Luo Feng's body trembled slightly, and his face gradually turned red, like a fire coal, comprehending this extremely pure heaven and earth evil qi and improving the realm of sword technique.

In the cave, the mysterious monster that appeared in the fire pool has reached the edge of the fire pool.

After reaching the edge of the fire pool, it no longer moved forward, but just stared at Luo Feng sitting on the shore with empty eyes, and the cold light flickered inside.

Whining......

Throughout the cavern, a series of low, eerie sounds were recalled.

Suddenly, Luo Feng's eyes slowly opened, and his gaze met the humanoid monster in the fire pool.

There was no light in his pupils, as if he had lost his soul.

......

Flames permeated all corners of the field of vision, as if until the end of the world, there was an endless flame......

"Where is this? How did I get here all of a sudden?"

Luo Feng opened his eyes and looked at the flame world around him, looking around blankly, a look of horror appeared in his eyes.

Frowning, he pondered what had happened before.

He was in the cave, condensing the core fire that had entered his body, and everything was going well, but then a strange suction suddenly came, and he lost consciousness in an instant.

When I opened my eyes again, I was already here.

"Am I dreaming?"

Luo Feng shook his head, his eyes sharp.

With his cultivation, it is impossible to confuse the dream realm, but the world in front of him, he has no clue.

Call!

At this moment, a heat wave roared, and Luo Feng raised his eyes to see that in the world of flames, a huge figure appeared at some point.

This figure is completely composed of flames, except for a pair of empty eyes, there are no other facial features, feet on the earth, the sky above the head, and the whole body is burning with raging black flames, and the momentum is overwhelming!

Luo Feng was not even an ant in front of it.

Those empty eyes looked at Luo Feng on the ground, and the flames on the flame troll's body were endless, and the hoarse voice resounded through the heavens and the earth.

"Surrender to me...... Otherwise ...... dead"

As the voice sounded, a mighty and irresistible thought swept towards Luo Feng.

In an instant, Luo Feng felt as if he was pressing a mountain peak on his body!

The huge pressure made him even unable to breathe, and there seemed to be a voice in his ears that made him give up resistance, and his legs were trembling slightly.

Cannot!

Luo Feng roared in his heart, instinctively feeling the crisis.

It seems that as long as you give in, you will fall into the realm of no return!

"What are you! You deserve to be surrendered!"

Luo Feng gritted his teeth for support, raised his head and glared angrily, his thin figure revealed an unyielding majestic momentum.

If it was an ordinary person, in the face of the pressure exerted by the other party just now, I am afraid that he would have already had a nervous breakdown.

It's just that Luo Feng's soul power is already extremely powerful.

During this period of time, he cultivated the Heavenly Demon Sword Technique, and his spirit was refined by the domineering killing intent in the mysterious bracelet, and he was more condensed and determined, which supported him.

"Surrender to me...... Otherwise, ...... dead"

Seeing Luo Feng resisting, the voice of the flame troll suddenly increased!

Rumble!

The flames of the entire world skyrocketed in an instant, and the surging waves of fire swept towards Luo Feng from all directions, as if they were about to devour him.

"Get out!"

Luo Feng cultivated through the mysterious bracelet, and was tempered by the unyielding killing intent inside, and his will was arrogant, how could he be willing to submit to the obscenity of others? Moreover, he hated the threat of others the most in his life. Instantly furious, he reached out to take the tiger sword, but found that the knife was not in his hand.

Jie Ji ......

The flames flickered, and a low laugh sounded between heaven and earth, as if mocking Luo Feng's indiscretion.

Luo Feng's pupils flickered with a faint blood, and under the huge pressure, the domineering and arrogant shouting of killing in the bracelet suddenly flashed in his mind.

A hint of enlightenment suddenly appeared in his eyes, and the momentum was suddenly as sharp as a front!

"I'm the knife!"

Luo Feng inhaled and clenched his hands, as if holding a giant blade, and slashed towards the flame troll.

The moment his hands were cut off, Sen Ran's killing intent surged out of his body, domineering and furious. The whole person seems to be an unsheathed treasure knife, sharp and irresistible!

Airplanes!

Between his hands, a huge blade suddenly appeared, with a dark blade, with a chilling killing intent, and slashed straight down at the flame troll.

Ji......

A terrible scream sounded, Luo Feng felt a pain in his head, and his consciousness returned to his body.

The surrounding area is still the underground cavern, but the originally calm magma pool has set off a monstrous wave of fire at this moment.

Rushing......

The magma in the entire pool condensed into a huge lava beast nearly seven or eight meters high, and with an incomparably vicious momentum, it rushed towards Luo Feng.

"I didn't think there was a demon here. ”

Luo Feng looked at the flame giant beast in front of him, his eyes calmed down, and he understood the whole story.

He didn't expect that he was so lucky, and the underground cave he casually broke into not only had a fire in the center of the earth, but even a demonic spirit!

The evil spirit is the pure evil qi between heaven and earth, and the monster that appeared in wisdom was born by chance.

These monsters have no physical body, their intelligence is extremely low, and they rely on the souls of other living beings to cultivate.

Just now, it took advantage of Luo Feng's cultivation to invade Luo Feng's brain, wanting to devour Luo Feng's soul.

Unexpectedly, Luo Feng's soul power was strong and his spirit was condensed, not only did he not succeed, but he was seriously injured!

Looking at the furious Earth Fire Evil Spirit in front of him, Luo Feng's eyes were indifferent.

This evil spirit should have just been born, in addition to the means of spiritual attack, its own strength is not even as good as that of a second-level demon beast, and he was seriously injured by him just now, so there is no need to be afraid at all.

"Since you dare to sneak up on me, there is no need to exist in this world!"

Luo Feng took out the Tiger Spirit Knife and slashed out dozens of knives in an instant.

The three-meter-long blade pulled out a knife net, slashing the entire magma troll into pieces.

The mournful screams echoed and eventually vanished without a trace, and the pool of fire regained its calm......