"As expected of a high-grade Heaven-level spiritual artifact."
Lin Xi looked at his Thunder Wings and couldn't help but click his tongue in amazement.
Although that attack was incredibly powerful, he had not yet fully mastered the secret technique.
If he were to unleash his full power, even a martial artist at the early stage of the eighth level of the Nascent Soul realm would probably not dare to confront him head-on!
"This lightning-based secret technique can only unleash its full power at the seventh level of the Nascent Soul stage and above, and it can also unleash extremely astonishing power at crucial moments."
Lin Xi nodded in satisfaction, then resumed his cultivation.
With the help of the Thunder Essence Pill, Lin Xi's thunder power continued to increase, and he soon reached the sixth level of the Nascent Soul stage.
And crackling sounds came from his body.
"Is this the sixth level of the Nascent Soul stage? I wonder just how powerful the Thunder Essence Pill really is!"
After experiencing it, Lin Xi's eyes were filled with fervor.
At this moment, Lin Xi finally understood the benefits of cultivating lightning-based martial arts.
Now, every muscle and bone in Lin Xi's body is filled with extremely concentrated lightning power. If he were to devour those Thunder Essence Pills, his physical body would likely become even more solid, and he could also temper his own flesh.
"It seems that I need to accumulate more energy before I can try to fully absorb the Thunder Essence Pill."
Having confirmed his own strength, Lin Xi spoke slowly.
Then, he moved swiftly and sped away into the distance.
Before leaving, he swallowed the Thunder Essence Pill.
The moment the Thunder Essence Pill entered his stomach, it immediately transformed into blazing thunder flames that enveloped his body.
Enveloped in the lightning flames, Lin Xi's body instantly felt a tingling sensation.
This tingling sensation seemed to release his entire soul.
This feeling made him feel that his soul power had become stronger.
"Thunder Flame? Is this the power of a sixth-level Nascent Soul cultivator?"
"The effects of this Thunder Essence Pill are truly astonishing!"
Lin Xi's eyes lit up, and he immediately took out another Thunder Essence Pill and swallowed it.
When the Thunder Essence Pills were completely digested, his body surface was covered with dense thunder flame patterns.
As Lin Xi's body made crackling sounds.
At this moment, Lin Xi's physique also began to improve rapidly.
The moment Lin Xi's body suddenly increased in strength, the originally spacious cave was immediately filled with a tremendous pressure, causing the surrounding air to violently distort and deform.
Bang!
Lin Xi pushed off with both feet, and the entire mountain trembled.
Pieces of gravel fell, some carrying a pungent, burnt smell.
Just as the stones were falling, a series of loud noises came from outside the cave.
"Um?"
Hearing the commotion outside, Lin Xi frowned, then pushed open the door and went out.
At the doorway, the lightning-attribute spirit beasts roared angrily, seemingly in protest.
Amidst the roars of these spirit beasts, they transformed into streaks of lightning and charged toward Lin Xi.
Bang!
Bang!
Faced with the attack of these spirit beasts, Lin Xi flipped his palms and unleashed a powerful force, instantly turning the lightning into bursts of lightning fire.
The speed of these spirit beasts was thus slowed down, and wisps of black smoke even rose up.
"hiss!"
Looking at the black mist being burned by lightning and fire, Lin Xi couldn't help but gasp.
This lightning fire can actually corrode the fur of spirit beasts, and for some spirit beasts, it is practically poisonous.
"This...this is the effect of the Thunder Essence Pill? This is incredible!"
"Oh my god!"
Lin Xi was dumbfounded; he had never imagined that such a magical existence existed in this small world.
But at this moment he also understood one thing: in this small world, some treasures are hidden by the wonders of heaven and earth, and will only be revealed when the true opportunity arrives.
Such treasures are usually only possessed by the old monsters of major sects or top forces.
Lin Xi's strength was only at the second level of the Nascent Soul stage, making it impossible for him to obtain it.
The spirit beasts defeated by Lin Xi transformed into streams of thunderous power, surging into his dantian and causing subtle changes within it.
Lin Xi's dantian became more solid and deep, like a mountain.
"The spiritual energy in this little world is truly abundant!"
Feeling the surging spiritual energy filling his dantian, Lin Xi whispered with joy.
Without hesitation, Lin Xi moved and continued speeding into the distance.
However, he did not encounter any danger or spirit beasts along the way.
Three days later, Lin Xi finally stopped.
A vast jungle appeared ahead.
In this jungle, there is a valley, and the valley is surrounded by a barrier.
"Hmm? Could this be the legendary Thunder Prison?"
The moment Lin Xi saw the valley, his heart skipped a beat.
"The legendary Thunder Prison is a unique area in the deepest part of this small world."
That place is a purgatory formed by heavenly lightning, and even heavenly tribulations can occur in its deeper parts, hence it is called the Thunder Prison, which is quite reasonable.
"
Lin Xi's thoughts raced, recalling information he had read in ancient books before.
"Thunder Prison is indeed infamous, not only because of its fearsome reputation, but also because it is said that a god of heavenly tribulation is contained within it."
"
"As long as you can survive the Heavenly Tribulation, you can advance to the True Immortal Realm."
"
"But getting out of Thunder Prison is no easy task!"
Lin Xi shook his head, his expression also appearing somewhat grave.
In Lin Xi's eyes, although the Thunder Prison was infamous, the power of the lightning tribulation within must be extremely terrifying.
After all, the Heavenly Tribulation is not something ordinary people can withstand, and the Thunder Prison also contains the power of thunder, which is enough to destroy the physical body and soul, making people terrified.
Even so, Lin Xi did not back down an inch. He was a battle maniac, so how could he be afraid of the little Thunder Prison?
"Since we're here, let's give it a try!"
Lin Xi muttered to himself, then strode forward.
The moment he stepped into Thunder Prison, he immediately felt as if a huge vortex was beneath his feet, pulling him into a pitch-black void.
This void was extremely vast, and the oppressive power of the thunder was exceptionally strong, making people dare not act rashly.
Around the Thunder Prison, countless thick bolts of lightning surged wildly through the space, like thousands of lightning serpents wreaking havoc.
"This power of lightning is truly extraordinary!"
Lin Xi's face was full of shock, because the pressure released in the Thunder Prison was comparable to that of a Spirit Emperor Realm expert!
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