His current combat strength, an ordinary low-grade Martial Emperor, if he didn't burn the True Yuan, would basically not be his opponent. When encountering a low-grade martial emperor like the blue-robed old man, who can use the fire of the Yin to burn the true yuan, there is still a gap.

If he can reach the realm of the Martial Emperor and refine the Yuan Qi into the True Yuan, then the old man in the blue robe will definitely not be able to take ten moves in his hands, even if he burns the True Yuan.

Compared with him, in addition to the advantage of the true yuan, the blue-robed martial artist is inferior to him in martial arts and combat skills. If Xiao Chen used the Purple Thunder True Fire to burn the True Yuan, I am afraid that the old man in the blue robe would not even be able to stop him from three moves.

A hint of eagerness flashed in his eyes, Xiao Chen glanced around and said, "Don't talk about this, where is the source of the spiritual vein, I can't wait." ”

"To the northeast, if you walk twenty miles, you should be able to see a small hill, where there is a prohibition left by the Thunder Emperor, I can help you open it and enter it. ”

Twenty miles is not too far, Xiao Chen looked at it, although he was very eager to rush over, but he was not really so reckless.

Sit cross-legged on the ground again and continue to heal to make sure there are no injuries and rush over in the best possible condition.

Half an hour later, Xiao Chen reopened his eyes, full of energy, a little on his tiptoes, and turned into a dragon and rushed away.

But he didn't go far before he ran into a little trouble, and a dozen or so vicious fire spirits in front of him blocked his way.

Having seen the fire spirit in the red blood cage, Xiao Chen was not panicked, and knew how to deal with this kind of yin attribute fire spirit that had no sense of pain.

A ball of purple thunder true fire popped out of his right hand, the purple light flashed in his eyes, and in the flames above his palm, there was suddenly a dazzling light, but it was Xiao Chen's origin heart that was also taken out.

The purple thunder true fire that contains the heart of the origin is completely different from before, looking at the flying fire spirit, Xiao Chen snorted lightly, pointing at things as soldiers!

The flames suddenly continued to condense and transform, and finally turned into ten sharp short swords, Xiao Chen waved his right hand, and the short swords shot out with a whoosh.

Bang bang bang!

The Purple Fire Short Sword of the Extreme Yang was inserted into the hearts of these fire spirits, and immediately exploded, and the ten difficult fire spirits were instantly blown into countless sparks.

Xiao Chen smiled slightly, the purple light in his right eye flickered, and the short sword that dispersed in the air turned into ten streamers and re-entered his right eye. With the short sword transformed by the true fire of the purple thunder, Xiao Chen swept all the way over, and a quarter of an hour later came to the hill that Jiao Jiao had said.

The hills are not big, not more than 200 meters high, 300 meters in a row, the earth is black, at a glance it looks extremely ordinary, and there are countless similar hills in this underground world.

"The source of the spiritual veins is down here?"

Xiao Chen walked around the hill, and he didn't feel that there was anything special about the aura here, no matter how he looked at it, it was an ordinary hill.

Xi Jiao nodded and said, "Well, the source of this spiritual vein has not been suppressed by the Spirit Gathering Array, and the spiritual energy has been leaking all year round, and the Thunder Emperor took half of it back then." I was afraid that this place would be discovered, so I casually put a ban on it, you wait for me. ”

Shout!

As the words fell, Jiao Jiao flew out directly from the Moon Shadow Knife, and the luster on the blade immediately became much dimmer.

It's been a long time since I've seen it with my own eyes, Xiao Chen took a closer look and found that the other party hadn't changed at all. The height of a head shorter than him, the appearance of a little girl, and the angry figure are still the same as before.

Looking at the hill in front of her, there was a look of nostalgia in her eyes, she sighed slowly, her hands began to seal quickly, and finally her small right hand pointed forward and said in a playful voice: "Open!"

The condensed hill split in half in Xiao Chen's surprised gaze, and a surging aura surged out of it.

"Don't be stunned, hurry in, let the two people from the Holy Volcano Village sense this aura, and the trouble will be big. ”

Xiao Chen understood this, his body flashed, turned into purple light, and instantly ended up in the road at the foot of the hill. Boiling Jiao then entered, her hands sealed again, and the hills closed again with a bang, becoming ordinary again.

The two blue-robed old men who were advancing towards the Netherfire in the distance frowned at the same time, after being promoted to Martial Emperor. Martial artists have begun to cultivate spiritual power, and they are extremely sensitive to changes in the aura of heaven and earth.

At the moment just now, the two of them sensed an unusually powerful aura at the same time, and it gushed out very suddenly.

The gray-robed old man said, "Big brother, do you want to go over and have a look." ”

"Tianwu Lake is the former site of the imperial capital of the Tianwu Dynasty, it may be that there is a strange treasure appearing, I will go over and take a look, and you will deal with the Netherfire Spirit later. The blue-robed old man thought for a moment.

The corridor was deep and dim, surrounded by a thick spiritual mist, and the walls were covered with dew from the liquefaction of spiritual energy, which seemed to have not dissipated for thousands of years.

There is no need to cultivate here at all, as long as you open your mouth and suck hard, your cultivation can increase instantly, but Xiao Chen didn't dare to suck it.

There are also many impurities in the spiritual mist, and the cave is not ventilated all year round, and those impurities have a lot of harm to people's bodies, so they can only sigh with joy.

Walking all the way forward, at the end, the spiritual mist dissipated, and an underground river appeared in his eyes, the flowing water was roaring, and the fragrant aura came from above, and the entire small river was actually transformed by spiritual liquid.

Xiao Chen sighed: "It's really not an ordinary waste, let a spiritual river just keep flowing out, five thousand years have passed, how much spiritual energy will it cost." ”

The Jiao Jiao who followed behind him, her small mouth turned up slightly and said: "I don't know, it's just a low-grade spiritual vein, when you go to the Kunlun Realm, you will know, and when you see the Tianquan Ancient River, you will know what the real Spirit River is." ”

was despised by Jiaojiao, Xiao Chen couldn't refute it when he smiled, he knew that the spiritual veins were graded, but he didn't know exactly how to divide them.

At the end of the Spirit River is the location of the source of the Spirit Vein, and the two of them walked forward, boiling Jiao on the road, and by the way, they talked to Xiao Chen about the division of the Spirit Vein level.

The spiritual veins are divided into five orders, from the first order to the fifth order from low to high, the first-order spiritual veins are the most ordinary, and there are not even associated spirit stone mines around, and only the second-order spirit veins exist around them.

What the Heavenly Sword Pavilion has is a second-order spirit vein, but most of the spirit stones produced by the second-order spirit vein are low-level spirit stones, and intermediate-level spirit stones rarely appear.

By analogy, only the fourth-order spirit veins will produce a large number of high-grade spirit stones, and the fourth-order spirit veins are also known as the best spirit veins. There are less than five top-grade spirit veins on the Tianwu Continent, and they are in a state close to exhaustion, so they are no longer able to produce a large number of top-grade spirit stones.

The fifth-order spirit vein was called a saint-level spirit vein, and there was not one in the Tianwu Continent, even in the Kunlun Realm, it was an extremely precious existence. As for the fifth order, the legendary king's spiritual vein belongs to the existence of rare water chestnuts in the Kunlun realm, and only the king's faction can grasp it.

While speaking, the two also walked to the end of the Spirit River, Xiao Chen looked at the source of the floating spiritual veins in the air, and his eyebrows furrowed slightly.

In the thick spiritual mist, the source of the spiritual veins was only the size of a palm.

In the spiritual mist, there is a little spiritual rain, which keeps raining all the time, providing sufficient water for the spiritual river on the ground. In the center of the mist, there was a blue ball of light, floating quietly, and layers of comprehension diffused from the ball of light.

Xiao Chen smiled bitterly: "I'm afraid it's a trip for nothing this time, I have the impression that the source of the spiritual veins of the Heavenly Sword Pavilion gives me endless feelings, as if I am in the middle of a vast ocean." ”

Xi Jiao smiled happily: "Hehe, stupid master, you know everything when you pick up the treasure, and you are stupider than the owner of wood." ”

Xiao Chen said suspiciously, "What do you say?"

"At a glance, you can know that you haven't really seen the source of the spiritual vein of the Heavenly Sword Pavilion, even the source of the best spiritual vein is only three zhang in size, how can it be endless. ”

After recalling it, Xiao Chen remembered that he really didn't see the source of the spiritual veins of the Heavenly Sword Pavilion. At that time, I was just sitting on the futon for a moment, and the endless feeling was the picture that appeared in my mind.

Ji Jiao continued: "No matter how well the spiritual veins of the higher level are maintained, they will slowly weaken as time passes. The source of the spiritual vein of the Heavenly Sword Pavilion, I estimate that it is only ten times the size of this spiritual source, and it will not be too large. ”

"You came just right, the spiritual source here is the limit of what your body can currently bear, so the risk of exploding your body has been reduced a lot. ”

Xiao Chen's eyes burned as he looked at the source of the spiritual vein, and his mood became excited for no reason, he was promoted to the Martial Emperor and refined the Yuan Qi into the True Yuan, and another door to the Martial Artist's Path would soon open to him.

Ji Jiao stretched out her hand to Xiao Chen and asked for some high-grade spirit stones, and said with a calm face: "Although the risk has been reduced a lot, it is not without risk, remember one sentence, don't be greedy, don't be blinded by power." ”

"When I set up the Spirit Sealing Array, you can go and devour the Spirit Source, you must remember what I said, don't forget. ”

Xiao Chen nodded and said, "You can set up the formation." ”

With a wave of her right hand, a strong wind blew out for no reason, removing the thick spiritual mist, and only the brilliant blue spiritual source could be seen floating quietly in the air.

Woohoo!

One spirit stone after another flew out of Xi Jiao's hand, and after throwing out one hundred and eight high-grade spirit stones, his hands began to change his technique, and finally lightly tapped at each spirit stone.

The spirit stones immediately emitted a faint brilliance, and lines shot out from above, linking all the spirit stones together, and an extremely complex formation suddenly appeared above the spirit source.

The eighteen corners of the formation each shone a brilliant brilliance, sealing a heaven and earth inside.

Ji Jiao said softly: "The spirit sealing array has been arranged, and the spiritual energy in the spirit source will not pour out again, you can go." ”

Success or failure in this move, Xiao Chen took a deep breath of air and floated lightly, and the whole person flew to the center of the array and sat down cross-legged. The Sealing Spirit Array formed an invisible plane in the void, and it didn't need Xiao Chen to stand to float it.

The palm-sized first-order spiritual source was quietly floating above Xiao Chen's head.

Rumble!

As soon as he sat down, in Xiao Chen's mind, a surging river appeared rushing towards him, the river was mighty, as if it could destroy all the dikes in the world and sweep the heavens and the earth.

His heart sank, Xiao Chen understood that what Xi Jiao said was true, the aura of heaven and earth contained in this palm-sized spiritual source was definitely one-tenth of the spiritual source of the Heavenly Sword Pavilion.