The Black Mountains seized this opportunity and rushed down mercilessly.

The three-headed python sensed the danger coming, and it raised its three heads and struggled, trying to stop the giant peak from falling.

However, once the powerful light bullets they released fell into the dark fog, they gradually disintegrated and dissipated before they could touch the mountains.

Faced with difficulties, the python was still unwilling to sit and wait for death.

It slapped the ground with all its might, using the reaction force to fly out rapidly in the sunset glow.

However, at this moment, the surrounding white flames suddenly turned into more than a dozen thick fire chains, tightly binding the giant python's body.

It only flew a distance of more than ten feet before falling heavily to the ground again.

The Black Mountains finally arrived as expected.

As the mountain fell to the ground, black light exploded, making it difficult to see for a moment.

The three python heads were about to scream as a warning, but were drowned out by the roaring sound of the collision.

When Nanlong Hou saw that victory was imminent, he was extremely happy.

The old man surnamed Lu breathed a sigh of relief, and his tense mood was relieved.

Only Chen Yun observed silently, with a hint of worry inadvertently revealed between his brows.

As the black light gradually faded, the scene in the distance gradually became clear.

Under the black mountains, the three giant pythons did not die immediately.

But the only remaining python head was exposed, roaring madly, shaking its head constantly, and its eyes were full of despair.

The python's tenacious vitality is truly amazing.

Lu Weiying snorted coldly and waved his arm. A beam of white light broke through the air and went straight to the python's head.

The beam of light gently swirled around the python's head, and without the protection of the green light, the python's head fell off easily.

The snake's blood spurted out from the remains of the body, reaching a height of several feet, and then there was no movement.

"Finally, the crisis has been resolved. But it's a little unexpected that these three-headed black snakes don't seem to be as scary as the legend says?"

The old man surnamed Lu looked relaxed and whispered to himself.

"Perhaps this python is not an authentic three-headed black snake. Please remember that a true three-headed black snake not only has three heads, but also has a pair of flesh wings."

"According to legend, these three snake heads can simultaneously display powerful magical powers of various attributes."

"However, the python in front of us is far from the description in the rumors. Otherwise, how could we capture it so easily?"

Nanlong Hou also shook his head slightly, with deep doubt flashing in his eyes.

"Perhaps this python is a mutation from another type of snake beast, and does not have the ability to transform into three snake heads, so it may not be the three-headed black snake."

"We don't need to delve too deeply into the origins of this snake. It's better to enter the passage as soon as possible."

Chen Yun said this in a calm tone, and then pointed lightly at the giant peak, and the mountain instantly shrank into a black light.

He put it into his sleeve and disappeared, leaving behind only the giant python's corpse that had turned into meat paste.

Nanlong Hou then stretched out his hand, and a golden light and a green light suddenly floated away from the corpse. After suddenly making a low humming sound, they shot back towards their owners.

These were exactly the golden flying sword and emerald green ring that had been thrown out by Nanlong Hou earlier.

The golden flying sword went straight into the body of Nanlong Hou, while the emerald green ring returned to its original shape and was put back on Nanlong Hou's finger.

Lu Weiying stared at the broken corpse, thought for a moment, and then came to the side of the corpse in a few flashes.

He casually grabbed the empty space inside the giant python's head, and a green inner pill only the size of a thumb appeared in his palm.

A satisfied smile appeared on the old man's face. After glancing at the other two heads, he also took out an inner elixir from each head.

At this time, Chen Yun had already collected all the remaining puppet beasts and flew over with Nanlong Hou.

The old man threw one inner elixir in his hand to Chen Yun and Nanlong Hou without hesitation.

Chen Yun stretched out his hand and caught the object steadily. After taking a glance at it, he calmly put it into his pocket.

Nanlong Hou naturally accepted it without hesitation.

He casually released a fireball, burning the giant python's body to ashes. The old man surnamed Lu just spoke:
"If it weren't for the three of us working together, any one of us would be in great trouble if we encountered this beast alone. However, now that the three of us have joined forces, it shouldn't be too difficult to destroy an ancient beast of this level."

"If the fire toad beast is as easy to deal with as this python, then this trip will become much easier!"

"I hope so."

"However, I think the Fire Toad Beast will be even more difficult to deal with. After all, even though Master Cang Kun was seriously injured, he was still able to make the monster flee in panic. It must be no ordinary creature."

Nanlong Hou sighed and said with a wry smile.

After hearing this, the old man surnamed Lu thought for a moment and nodded silently.

At this moment, Chen Yun turned into a ray of green light and took back all the flags arranged around him. Then he rushed back and said in a deep voice:

"Let's go without further ado. We will soon be able to experience for ourselves the true strength of the Fire Toad Beast."

After saying that, Chen Yun took the lead and signaled Nanlong Hou and the old man to move forward.

Nanlong Hou and the old man looked at each other and immediately followed.

After all, the next Northern Lights area can only be passed smoothly by relying on Chen Yun's Yin-Yang Ring.

With the demise of the giant python, the originally pervasive gray fog has disappeared, and the scene ahead is clearly visible.

It was still the stone road that was over a hundred feet long, with both sides and the sky illuminated by the blood-red forbidden light, making it impossible to see the details.

Chen Yun, Nanlong Hou and the old man surnamed Lu were flying slowly in the air about five or six feet above the ground.

After walking about twenty miles, the scenery ahead suddenly changed, revealing a tall, pale yellow stone wall.

A pitch-black cave appeared on the stone wall, about seven or eight feet wide.

"This is our destination. We should reach the inner valley after passing through this cave."

"However, in the cave, we will face an obstacle of more than ten miles of northern polar light."

"Fellow Daoist Chen, now it will depend on whether your Yin-Yang Ring can function."

Nanlong Hou let out a long sigh, turned to face Chen Yun and spoke solemnly.

"Since we already know that the cave contains the Northern Lights, one of the essences of the origin, why can't we find another path to pass through this stone wall?"

“Do we have to go through this cave which is considered as the only way?”

Lu Weiying pursed her lips and thought for a moment, then asked with an inquiring look.

"I'm afraid this approach won't work." "Brother Nanlong, if you're willing, try using the magic jade disk in your hand to attack the stone wall in any way, and perhaps you'll understand the reasons behind it."

Nanlong Hou advised calmly and shook his head.

"I see. Then let me give it a try."

The old man obviously did not give up. He waved his sleeves and threw the white light out again, slashing heavily at the stone wall in front of him.

Chen Yun watched it carefully from the side and saw that the beam of light was actually a short blade with a unique shape, which seemed to be some kind of rare flying knife-like magic weapon.

Under Chen Yun's gaze, the flying knife slashed on the stone wall, emitting a dazzling white light.

Lu Weiying's expression changed slightly when he noticed something was wrong, and he immediately waved his hand to recall the flying knife that was full of spiritual energy.

Chen Yun observed carefully and found that the flying knife left a shallow mark about an inch deep where it was carved.

In the center of this mark, a small amount of fine silver light can be vaguely seen.

"How is this going?"

The old man showed a look of surprise, and quickly walked to the knife mark and examined it carefully.

"Gangyinsha, this stone wall actually contains the original ore of Gangyinsha?"

The old man only observed for a moment and couldn't help but shouted out in a trembling voice.

When Chen Yun heard the words "Gang Yinsha", his expression changed instantly.

He quickly stepped forward, stretched out a finger, gently stroked the knife mark, and began to carefully identify it.

"I have never heard of such a material as Gangyinsha."

"Because it is one of the materials needed for refining equipment, it can improve the toughness of magic weapons, second only to the extremely rare 'refining crystal'.

This material itself is extremely hard, and it is difficult for magical weapons to shake it in the slightest, no matter how chaotic and disordered the starry world is.

Or in the field of immortal cultivation in the southern part of Tiannan, Gangyinsha is an almost extinct existence.

No wonder Lu Weiying's flying knife had almost no effect on it.

Chen Yun stared at the knife mark and was silent for a moment. Suddenly, he stretched out his hand without hesitation and more than a dozen small swords shining with green light flew out from his sleeves.

It transformed into more than ten green streams of light, shooting straight to every corner of the stone wall.

Nanlong Hou and the old man were stunned at first, but they soon understood Chen Yun's intention.

Only a series of crisp and pleasant impact sounds were heard, and more than a dozen sword holes about several inches deep appeared on the stone wall.

There was also a flickering silver light in every sword hole.

"It is definitely Gangyin Sand. The entire stone wall is mixed with Gangyin Sand, but its distribution is not uniform. It seems that it is not caused by human factors, but because the stone wall itself contains a Gangyin Sand ore vein."

Chen Yun's expression changed slightly, but he explained in a steady tone.

Seeing that Chen Yun's flying sword could actually carve a sword hole on the stone wall that was several times deeper than his own flying knife, the expressions of Nanlong Hou and the old man could not help but change slightly.

However, when the old man surnamed Lu heard this, the greed in his eyes became even stronger. He stared at the stone wall without saying a word.

A trace of heat also flashed across Nanlonghou's face, but after a moment of thought, his expression gradually returned to calm.

"Let's keep moving forward. Let's go to the inner valley to explore for treasures first, and then consider how to deal with these silver sands."

Nan Longhou suggested calmly.

"Are you leaving so soon? These Gangyinsha are rare treasures. Why don't we knock off some of them and take them away?"

The old man hesitated for a moment, then put forward his idea with reluctance.

"Brother Lu, why are you so confused at this moment! Haven't you just experienced how tough the texture of this Gangyin Sand is?"

"Although there may be a whole vein of Gangyinsha ore buried here, a piece of raw ore that is only the size of a fist can only extract a small part of Gangyinsha the size of a grain of rice."

"How long will it take you and how much mana will it take to cut enough raw ore?"

"Also, although this item is indeed extremely precious, please don't forget that what we urgently need right now is not these material possessions, but a panacea that can prolong our lives and quickly improve our realm."

"Otherwise, when the end comes, we will be nothing more than a pile of bones."

Nanlong Hou frowned slightly, glanced at the old man, and said meaningfully.

When Lu Weiying heard what Nanlong Hou said, he was stunned at first, then he nodded in agreement as if he understood something.

"Brother Nanlong is absolutely right! I was so blinded by the treasure that I almost forgot the main goal of this operation. Thank you for your timely reminder, Brother Nanlong."

The old man was not an ordinary cultivator. After being reminded by Nanlong Hou, he suddenly came to his senses. With a look of gratitude on his face, he clasped his hands together to show his respect to Nanlong Hou.

After that, he no longer paid attention to the silver sand on the stone wall, fearing that he would be tempted again and quickened his pace towards the depths of the cave.

Nanlong Hou's expression then relaxed a little. He called out to Chen Yun and then followed in his footsteps towards Nanlong Hou.

Chen Yun also felt very reluctant to leave this line of silver sand that filled the entire mineral vein, and couldn't help but slow down his pace a little.

However, even though his flying sword was infused with Gengjin, making it far sharper than an ordinary flying sword, and it also had spiritual liquid that could instantly restore his mana, it was by no means easy to cut off enough raw Gangyinsha ore.

On the contrary, it is likely to arouse jealousy from Nanlong Hou and the old man.

After thinking about this, Chen Yun could only sigh softly and followed them into the cave with regret in his heart.

However, at this moment, the voice of Lord Dayan suddenly rang in Chen Yun's mind:
"Haha! There is such a rich Gangyin sand. I went through a lot of hardships and searched for a long time, but I couldn't find much. It's really worth the trip!"

"These Gangyin Sands can be used on the puppet body that I have just developed."

"Ordinary treasures can no longer cause any harm to them. Take all of this silver sand away."

Lord Dayan's tone was filled with excitement.

"Take them all away? You are kidding me, old monster."

"This is a Gangyinsha ore vein, not a Lingshi ore vein. How can I take it all away? Do I have to use a flying sword to dig it out bit by bit?"

When Chen Yun heard this, he responded with dissatisfaction in his heart.

"Humph! Since I said so, I have a way. Chen kid, don't you have a lot of gold-eating bugs?"

"I will teach you a spell that can control the gold-eating bugs to drill into the stone wall and devour the silver sand, and then spit it out and condense it into silver sand crystals."

"This technique was obtained from a defeated insect cultivator in the past."

"Not only can the gold-eating bugs do this, but several other spirit bugs can also accomplish this task. However, in comparison, they are not as convenient as your gold-eating bugs."

Dayan Divine Lord had already answered with confidence. (End of this chapter)