Thinking of this, Ye Fan carefully heard the sound of vibration again and observed it attentively.

After observing for a while, Ye Fan found that the vibration sound above the river was not like a volcanic eruption, but like a fight.

"It seems that this section of the river is very close to the ground, otherwise I would not have felt the sound of fighting on the ground. Why don't I go up and see what's going on on the ground above?"

Thinking of this, Ye Fan took out the Fire Flame Sword and found a place where the sound came from the clearest and bombarded it.

The clearer the sound transmission, the thinner the ground and the easier it is for the sound to penetrate.

Now, Ye Fan's combat power has reached a terrifying level, and with the help of the Fire Sword in his hand, with just one sword, he broke through the river more than three meters thick, blasting out a half-meter-wide passage.

As soon as the sword pierced the river, Ye Fan heard the sound of a fierce fight coming from above.

Ye Fan was curious, and hurriedly jumped out of the passage.

As soon as he returned to the ground, he quickly looked around and was stunned.

It turned out that the place where he was not somewhere else, it was the fourth floor of the igneous cave where he had been.

"This underground undercurrent is indeed connected to the fourth layer of the igneous cave, it seems that my guess is not wrong!"

This fourth layer is still floating around with this purple-red poisonous mist.

And at this moment, fierce fighting and screaming were coming from the depths of the fourth layer. The fourth depths were the molten pools where the Earth Fire Scorpion King was staying.

"Could it be that the Earth Fire Scorpion King is fighting with whom, is it a human or some other fierce beast?"

Ye Fan was surprised in his heart, and quickly held his breath and quietly dived over.

When Ye Fan went to the place where the fight was taking place, he found the corpses of the earth fire scorpions in one place along the way, not to mention seventy or eighty.

These dead earth fire scorpions are all adult earth fire scorpions, and depending on their deaths, some of them were crushed by sharp claws, some were scorched by fire, and some were bitten to death.

Although Ye Fan was very shocked in his heart, he didn't forget to dig up the inner pills of these earth fire scorpions, each of these corpses was a second-order inner pill!

A second-order inner pill can be sold for seven or eight hundred gold coins, to say the least.

In this way, he quietly reached forward while stealing his head to dig up Neidan.

It didn't take long for him to finally reach the place where the fight was taking place, and he dug up all the fire scorpions on the ground.

This digging dug out a total of seventy-six Neidan, plus Ye Fan himself has two, a total of seventy-eight, worth at least sixty thousand gold coins!

The thought of this amount made his eyes light up, and his mood couldn't help but be a little excited.

He didn't expect that this trip back to the fire cave would have such a gain.

After putting away those inner pills, Ye Fan had the heart to peek at the scene of the fight.

As soon as he saw the battle scene, Ye Fan's eyes widened in surprise.

I saw that next to the molten pool, the Earth Fire Scorpion King was leading dozens of Earth Fire Scorpions to fight with a huge rat-shaped beast.

The rat-shaped beast was seven meters long, its body was like a rat, it was surrounded by flames, and a third eye was born on its forehead, but this was a fourth-order Great Perfection beast, a three-eyed fire ferret.

At this moment, the two sides fought inextricably, very tragically, each of them had some injuries on their bodies, and there were many corpses of fire scorpions around the battlefield.

However, what surprised Ye Fan was not the battle between the Three-Eyed Fire Weasel and the Earth Fire Scorpion King.

Rather, it is a small island in the magma pool behind the two fierce beasts, and it is also the small island where the dragon and phoenix holy fruit once grow.

At this moment, I saw a skull-sized red jade bead floating above the island, and it was exuding an amazing fire vitality, the concentration of its fire vitality was unimaginable, even Ye Fan, who was two hundred meters away, could feel the richness of the fire vitality it emitted.

However, what made Ye Fan strange was that this scene gave him a very familiar feeling.

Just when he wondered why it felt familiar, a flash of inspiration flashed in his mind, and he remembered that he had seen a similar mysterious jade bead in the cold pool of the underground cave of the Monkey King Cave.

The jade bead was almost the same size as the fiery red jade bead in front of him, and it was also strangely suspended in the air. It's just that one is transparent, the other is red-fiery, one exudes an amazing water vitality, and the other exudes an amazing fire vitality.

"Why is it so similar? Is there any connection between these two huge jade beads?"

Ye Fan looked at the two fierce beasts fighting in the arena again, and said secretly: "Could it be that these two fierce beasts are fighting for the fiery red jade pearl?"

Ye Fan had just turned his mind around in his heart, and a sudden change appeared in the field.

I saw that in the field, the three-eyed fire ferret suddenly roared, opened its mouth and spewed out a purple flame, which immediately burned all the dozens of earth fire scorpions that were besieging it to ashes, and even Neidan was burned to ashes.

Zhang Shui'er, who was hiding in the shadows, couldn't help but feel sorry for those Nedan who were burned to ashes when he saw this, but he was more shocked in his heart.

At this time, Ye Fan had no doubt that if he was also sprayed by that purple flame, he would definitely turn into ashes on the spot. At that moment, he hurriedly reined in his breath, not daring to act rashly, for fear of alarming the fighting beasts.

Although his current strength was infinitely close to the third-order, he was still vulnerable in the face of the fourth-order fierce beast.

As we all know, the difference in strength between the second and third orders is very large, but the gap between the third and fourth orders is even greater. The rank barrier of a martial artist, the later it gets, the greater the gap in strength.

Without further ado, it was said that after the three-eyed ferret spewed out a large mouthful of flames, its spirit suddenly withered a lot, and it seemed that the spewing of that flame had a very large load on it.

The Earth Fire Scorpion King took the opportunity to fight back, and the scorpion tail like a steel spear stabbed into the chest of the three-eyed fire ferret.

The three-eyed fire ferret screamed, and the third eye on its forehead suddenly opened, shooting out a pillar of black flame light, directly piercing the head of the Earth Fire Scorpion King.

The Scorpion King of the land died on the spot.

This battle between the two beasts ended with the annihilation of the Earth Fire Scorpion King and the serious injury of the Three-Eyed Fire Weasel.

Obviously, the Three-Eyed Fire Weasel that was born as a fourth-order Great Perfection was much stronger than the Earth Fire Scorpion King.

Although the Three-Eyed Fire Weasel was seriously injured, Ye Fan still didn't dare to act rashly, he knew very well in his heart that even if the Three-Eyed Fire Weasel was seriously injured, it was definitely not something he could deal with.

In the field, the three-eyed fire ferret glanced at the corpse of the Earth Fire Scorpion King with resentment, as if it was difficult to understand the resentment in his heart, and the iron tail jerked violently, and actually pulled the huge body of the Earth Fire Scorpion King away, and fell directly to the place where Zhang Shui'er was hiding, which scared Ye Fan a lot.

At this time, the three-eyed fire weasel felt a little relieved, and looked up at the fiery red jade beads in the air, and the two rat eyes revealed a greedy color.

And Zhang Shui'er, who was hiding in the shadows, looked at the corpse of the Fire Scorpion King beside him, and his eyes showed joy.

This is really a pie falling from the sky, and he, Ye Fan, naturally will not refuse.

While the three-eyed fire ferret focused his attention on the fiery red jade bead, he quietly dug out the inner dan of the Earth Fire Scorpion King.

The Earth Fire Scorpion King is a fourth-order fierce beast, and a fourth-order Inner Dan is worth six or seven thousand gold coins, which is a lot of income!

Ye Fan had just finished digging the Inner Dan of the Earth Fire Scorpion King, and there was another change in the field.

I saw that the three-eyed ferret seemed to be unable to suppress the desire in his heart any longer, and suddenly jumped and threw himself towards the fiery red jade beads in the air.

In the blink of an eye, the three-eyed fire weasel pounced on the fiery red jade bead, and the rat's mouth was open, and it swallowed the fiery red jade bead.

But at this moment, something unexpected happened, and the fiery red jade bead suddenly emitted an invisible force, suddenly pushing the three-eyed ferret away.

The three-eyed ferret was caught off guard and was pushed upside down and flew out, falling directly into the magma pool.