Cultivation of Immortality: Start by Improving Spiritual Root Qualifications

Chapter 851: Refining the Thunder Sword and the Fifth-Rank Spiritual Medicine!
Looked up,

The sky was filled with layers of purple lightning that were winding like giant pythons. They intertwined and collided with each other, and deafening roars erupted from time to time.

In the distance, the rolling mountains were also shrouded in lightning, and mysterious lightning flashed on the peaks, as if they were huge sculptures condensed from lightning.

Even the air was filled with rich thunder spiritual power, which made people's skin slightly numb.

"Sure enough, this Thunder Prison is worthy of being called a world of thunder and lightning!" Being here actually gave him a feeling like a fish in water.

Zhou Xun felt that the life-saving magic weapon Thunder Pool in his Dantian was shining brightly, as if he was excited by this place.
"If I stay here, I'm afraid my training speed will be much faster!"

Zhou Xun thought to himself.

Unfortunately, every three months, a thunderstorm tidal wave will erupt in this Thunder Prison Land, sweeping across the entire Thunder Prison Land.

Even if Zhou Xun is now in the late Nascent Soul stage, there is no guarantee that he can escape.
He had seen with his own eyes the death of Master Hongchuan in the thunderstorm tide.

He looked around for a few times.
Zhou Xun waved his hand, and a ray of spiritual light hit him, turning into a purple light shield that enveloped him.

Being in the Thunder Prison, even the power of the spells he cast increased by nearly 30%.

After doing all this, Zhou Xun flew towards the depths of the Thunder Prison, close to the ground.
The sky above the Thunder Prison was filled with streaks of lightning, which gave them an extremely dangerous feeling, so they naturally did not dare to fly recklessly.

Soon, Zhou Xun arrived in front of a huge mountain.
There was a long and narrow valley at the foot of the mountain, which he could cross directly. He had crossed through this valley last time.

This time it went smoothly again.

A huge and wide plain appeared in front of him, with thunder beasts strolling leisurely one after another.

"It's them again!"

Those thunder beasts were huge, each one was more than ten feet in size, standing on the hillside like small hills.
Their appearance is somewhat similar to that of a yellow cattle, but they exude a frightening aura of majesty, with flashes of lightning and lightning interweaving on their bodies.

The last time they came, Zhou Xun and his companions were chased by them and finally escaped into a cave, where they obtained a lot of purple gold and thunder essence, as well as an extremely precious purple gold thunder core.

Now that he is a cultivator in the late Nascent Soul stage, he naturally won't be afraid of these thunder beasts anymore.

At this moment, the thunder beasts also discovered his presence, and they rushed towards them with their hooves pedaling rapidly and lightning flashing under their feet!

The whole earth trembled.

Seeing this, Zhou Xun smiled slightly. The meat of these thunder beasts was extremely delicious and was a first-class ingredient.
"Well, let's catch some and take them back to raise."

Zhou Xun raised his mouth slightly, raised his right hand, and the Purple Jade Lightning Spear appeared out of thin air. The lightning pattern on the spear body flashed, emitting a terrifying pressure.

Those thunder beasts that were galloping forward felt the aura of the spiritual treasure and were suddenly struck by lightning, and their forward momentum suddenly stopped.

The leading thunder beasts roared in fear, lightning flashed under their hooves, and they began to slowly retreat.

"Want to run?" Zhou Xun chuckled, and made a gesture with his left hand. A lightning net fell from the sky, covering more than a dozen thunder beasts.

The thunder beasts struggled frantically but were unable to break free from the thunder net.

Zhou Xun swept his eyes over and selected eight of the strongest thunder beasts, four males and four females.
He waved his right hand, and eight purple talismans flew out, sticking accurately to the foreheads of the thunder beasts. The thunder beasts suddenly calmed down, the fierce light in their eyes faded, and they became unusually docile.

“Collect!” Zhou Xun took out a spirit beast bag and put the eight thunder beasts into it. Seeing this, the other thunder beasts wailed and knelt on the ground, as if begging for mercy.

"Go." Zhou Xun removed the lightning net. The thunder beasts turned around and ran away as if they had been pardoned. In the blink of an eye, they disappeared into the depths of the mountains.

Zhou Xun planned to raise these eight thunder beasts on Wangchuan Island. With the fourth-grade medium-quality spiritual veins there, raising these thunder beasts would not be a problem.

After putting away the spirit beast bag, Zhou Xun continued to move forward.

Two days later,
Zhou Xun walked out of this vast plain,
Along the way, he encountered several kinds of thunder beasts, but with his current strength, those thunder beasts scattered like birds and beasts after encountering him.

At this time, a lake appeared in front of him. This lake was Zhou Xun's first destination on this trip to the Thunder Prison.

He wanted to complete the final step of refining his Xuan Ting Thunder Sword here.

Looking up,

The lake water was light blue, with a slightly burnt smell of lightning, and a sizzling sound.

This is because the lake water contains the power of thunder and lightning.
This causes the monsters living inside to have a treasure of thunder attribute condensed in their bodies - Thunder Yuan Crystal.

It contains a wealth of thunder energy.
However, this trip to the Thunder Prison does not last long, and Zhou Xun does not plan to waste time here.

With a light jump, the whole person disappeared into the lake and flew quickly towards the depths.

After half an hour, Zhou Xun temporarily stopped his flight.

After walking for about an hour,
Suddenly, a large area of ​​fog appeared in front of us, covering the entire sky. There were also rumbling sounds inside, as if there was thunder.
“Finally here!”

Zhou Xun rushed over without hesitation.
As soon as he entered, the whole world turned into a blue haze, and tiny arcs of lightning flashed everywhere, attacking Zhou Xun, the outsider.
But Zhou Xun ignored it.

The same was true for the lightning spirits on the periphery that had a cow body and a snake tail, and were all flashing with lightning. Zhou Xun ignored them.
"After I refine the Thunder Sword, I will come back to play with you guys!"

Continue forward immediately.
Finally, this time our destination, the island in the middle of the lake, appeared before our eyes.

Zhou Xun did not hesitate and flew straight in.
After he went in, the foggy scene was gone, and the view inside was clear without a trace of dust, just like a new sky after the rain.

In this huge island, there is a lake inside the island, but the water flowing in it is not lake water.

But it's thunder plasma!

This was formed when the power of thunder and lightning was concentrated to the extreme. This was the place where he had refined the Black Thunder Sword.
The last time he came here, he also obtained the complete inheritance of Lei Xiao Sect.

"This lake of lightning magma should be able to meet the needs of the Xuanting Thunder Sword's upgrade!" Zhou Xun muttered to himself.
With a wave of his hand,
A flying sword about a foot long, dark purple in color, silent, dull and without light appeared in his palm. It was Zhou Xun's Xuan Ting Thunder Sword.

After being refined by Master Bailian, this treasure only needs to absorb the power of thunder to be promoted to the best quality.
It is still sealed at this time.

Looking at the jumping lightning in front of him, Zhou Xun gently threw the lightning sword in his hand, and the lightning sword floated above the lake.

Then he made hand gestures and struck the Thunder Sword, breaking the seal on it.

Suddenly,

"Zizi" tears flashed around the Thunder Sword in an instant, and the whole sword became bright and transparent!

"Good baby!"

"With lightning as the guide and thunder plasma as the medium, I will help you achieve the best form today!"

Zhou Xun made hand gestures as fast as lightning, and injected magic spells into the Thunder Sword. The Xuanting Thunder Sword was like a giant dragon awakening, the sword body trembled violently, and emitted a clear sword sound.

"go with!"

With Zhou Xun's light shout, the Thunder Sword turned into a purple lightning and plunged straight into the thunder lava lake.

"boom--"

The entire thunder magma lake boiled instantly, and countless thunder magmas rushed towards the thunder sword like living things.

The sword body greedily absorbed the pure power of thunder. The originally dark purple sword body gradually became transparent, and mysterious thunder patterns appeared on the sword body.

Zhou Xun could clearly feel that as time went by, the power of the Thunder Sword continued to increase.
"According to Master Bailian, this step needs to last at least seven days. After seven days, the longer the time, the stronger the power of the Thunder Sword!"

However, Zhou Xun couldn't possibly waste all his time here. After thinking for a moment, he decided to leave the Thunder Sword here to slowly nurture it, and he himself left to search for treasures in the depths.

Then, Zhou Xun waved his hand, and a giant five-foot-long spiritual wooden box appeared in front of him.

Inside was a set of fourth-grade, top-grade magic array - the Five Heavens Purple Thunder Array.

This formation is a fourth-level high-grade formation recorded in Zhou Xun's cultivation method "Lei Xiao Zhen Jue".
It is an extremely rare lightning-attributed magic array that combines attack, defense, and enemy trapping. Even a great cultivator would find it difficult to break through.

With this formation here, even if other people come here by chance, they will not be able to break through in a short time, thus ensuring the safety of his Xuan Ting Thunder Sword.

He threw the wooden box lightly, and 360 battle flags flew out and hovered in the air.
Zhou Xun closed his eyes slightly, made hand gestures as fast as lightning, and muttered something.

Purple lightning burst out from his fingertips and accurately hit each flag in the formation. The flags immediately hummed and complex lightning patterns appeared on their surfaces.

"fall!"

With a light shout, three hundred and sixty formation flags flew out like flowers from heaven and were inserted around the Thunder Lava Lake in specific positions.

The moment each formation flag landed on the ground, it stirred up a circle of purple lightning ripples.

"Thunder gathers in the five heavens, and purple air comes from the east!"

Zhou Xun shot out his last ray of light.
"Rumble--"

The entire island in the middle of the lake began to tremble, and thunderclouds in the sky surged wildly.

Countless purple lightning bolts fell from the clouds, but were pulled by the five array plates and transformed into a purple translucent light shield, covering the entire lake of thunder and lava!
Thunder dragons were roaming and electric snakes were dancing wildly on the surface of the light shield, emitting a heart-pounding pressure.

After doing all this, Zhou Xun waved his flag, and the light of the formation gradually retracted, eventually turning into a thin layer of purple light film, which was almost imperceptible if you didn't look carefully.

But the terrifying power contained in it caused the surrounding air to distort.

"With this formation protecting us, the Thunder Sword can be safely nurtured."

Then Zhou Xun flashed away from the island in the middle of the lake and returned to the mist again.

Almost as soon as he appeared, four or five thunder spirits with ox bodies and snake tails, and flashing lightning all over their bodies, surrounded him!

"What a treasure!"

Zhou Xun laughed loudly,

With his mouth slightly opened, seventy-two lightning seeds flew out, transforming into lightning swords, shooting towards these lightning spirits.

Like a string of gourds,
In just one round, he killed these lightning spirits.
The other monsters saw this and fled in all directions.
"Chase them, and make sure not to let any of them escape!" Zhou Xun ordered.

Immediately, the Red Noon Spirit Turtle and the Blood Demon General turned into two afterimages and chased after them.

However, Zhou Xun focused his attention on the dead monsters.

The bodies of these monsters suddenly became transparent, and then slowly dissipated like a puff of smoke, and finally merged into the vast fog.
Only a translucent lightning ball with flashing lightning was left standing in place.

Zhou Xun waved his hand and took them all in.

These lightning beads have no substance, but are condensed from a ball of lightning essence. When you touch them with your fingers,
"Fuck-"

There are also arcs of lightning reflected back,

This is pure Thunder Yuan power. It is only the residual soul of the Thunder Yuan spirit that appears this way. Once the residual soul is expelled, only pure Thunder Yuan power will remain!
Zhou Xun waved his hand, and a large area of ​​white thunder was summoned out, covering the thunder bead.

A few faint screams were heard, and the lightning bead became even darker blue and deeper.

Its original round bead shape slowly spread into smoke, condensing but not dispersing!
It is the pure power of thunder!

Zhou Xun opened his mouth slightly, and a square-shaped thunder pool flew out and hovered in front of him.
Then he pulled the lightning force towards the thunder pond, and it was sucked in in an instant.

Zhou Xun felt his mind lifted, a sense of fulfillment came over him, and the aura on the thunder pool seemed to grow stronger.
"Great stuff! If it weren't for the limited opening time of this Thunder Prison, he would really like to stay in it forever!"

Although he couldn't stay for too long, he still planned to spend half a day hunting down these thunder spirits.

Then he clapped his hands on his waist and summoned Xiao Jin, Xiao Jia, and the seven blood demons.
He gave an order,
Then it transformed into nine rays of light and rushed towards the surroundings.

Their purpose, of course, is to help Zhou Xun hunt down the Spirit of Thunder Yuan!

Zhou Xun stood with his hands behind his back, his eyes scanning the depths of the fog like lightning.

He clasped his hands together, and seventy-two lightning seeds circled around his body, like an army of thunder ready to strike.

"Boom——"

There were bursts of thunder in the distance. It was Xiao Jin and Xiao Jia who were encircling and suppressing the spirit of Thunder Yuan.

These creatures, formed by the condensation of pure lightning energy, turned into lightning beads and fell under the attack of Xiao Jin's golden lightning and the bloody evil spirit of the Blood Demon General.

Soon, half a day passed.
"Owner!"

Xiao Jin and Xiao Jia came forward holding a dozen Lightning Spirits, and the five Blood Demon Generals did the same.

There are more than seventy lightning spirits.

In addition to the three fourth-level lightning spirits that Zhou Xun had hunted personally, this time the harvest was huge.

"Hahaha, not bad!"

Then he waved his hand and summoned his life-saving magic weapon, the Thunder Pool, again.

Nearly a hundred lightning spirits surrounded it.
"Yin Lei, destroy!"

Zhou Xun pinched his fingers and muttered something.

In an instant, white thunder poured down from the sky like a waterfall, covering all the thunder spirits.

Scary screams rang out one after another, and the remaining souls in the thunder beads were completely wiped out by the Yin Thunder, leaving only the purest power of thunder.

"receive!"

Zhou Xun shouted softly, and the thunder pool suddenly expanded several times, turning into a huge thunder mouth, swallowing up all the thunder energy in the sky.

The thunder magma in the pool was boiling, and countless thunder patterns could be vaguely seen emerging on the pool wall. The aura of the entire thunder pool was rising steadily.

"Om-"

As the last bit of thunder energy was absorbed, the thunder pool suddenly vibrated violently, and nine mysterious purple thunder patterns appeared on its surface.

These lightning patterns were connected to each other, forming a complete thunder rune on the surface of the pool.

Zhou Xun's eyes flashed with brilliance. At this moment, the Thunder Pool had reached its perfect state, and its power had increased by at least 30% compared to before.

As soon as he thought about it, the thunder pool shrank instantly and re-sank into his dantian.

After doing this,

Zhou Xun flipped his hand and took out a cowhide map, which was a partial map of the Thunder Prison, which he had obtained when he accepted the inheritance of the Lei Xiao Sect.

Slowly unfolding it, he set his sights on Luojia Mountain, on which was clearly marked a fifth-grade inferior spiritual medicine - Xuanlei Yunzhi!
(End of this chapter)