The Skeleton Sword was originally a high-grade treasure weapon of the Xuan Rank, and after blessing the power of Lin Yun's martial soul, it could completely reach the level of sharpening iron like clay, so there should be no problem in dealing with these giant beetles.

Lin Yun immediately held his sword in one hand and rushed towards one of the giant beetles.

With a swing of the skull sword in his hand, it turned into a sharp sword light and landed on the metallic carapace of the giant beetle.

Whew!

With the sound of a hard object tearing, the indestructible carapace of the giant beetle was instantly torn apart by the skull sword like a piece of paper.

The fissure slashed through the flesh from the corners of the mouth to the chest and abdomen, and then to the tail, spanning the entire body of the giant beetle.

The giant beetle fell to the ground, and then the corpse was transformed into mystical energy and merged into Lin Yun's body.

After absorbing this mysterious energy, although the surface of Lin Yun's body did not change much, his skin, muscles, and bones had all undergone earth-shaking changes from the microscopic level.

The human body is made up of countless tiny life units, which in turn are made up of countless elementary particles.

These elementary particles are separated from each other by a large distance. It's like two mung beans separated by a street.

And at this moment, all the elementary particles that make up Lin Yun's body are shrinking the distance between them.

The reduced distance is insignificant, but it only has the effect of killing a giant beetle.

If you kill hundreds or thousands of giant beetles, the spacing between these elementary particles will be reduced to a terrifying degree.

The smaller the distance between elementary particles, the greater the density of their bodies and the greater the structural strength of their bodies.

When the distance between elementary particles is reduced to a certain level, the body will become extremely strong, and the body's defense will become very perverted.

Thinking of this, Lin Yun's battle intent instantly soared.

Holding the skull sword in one hand, like a terrible razor, he plunged unstoppably into the giant beetle pile, setting off a bloody storm in the army of hundreds of beetles.

He was like a hurricane, and everywhere he went, all the giant beetles fell.

Every time a giant beetle fell, a stream of mystical energy would merge into Lin Yun's body, transforming his body from a microscopic level, making him stronger and stronger.

The current ability of the Demon God's sword can greatly increase the sharpness of the weapon.

Under the grip of the Demon God's sword ability, the skull sword can easily break through the defenses of these giant beetles.

Without the ability of the Demon God's Sword to grip it, it would have been impossible to break the carapace of these giant beetles with the Skull Sword alone.

It was precisely because of this that Lin Yun had to open the Demon God's Sword throughout the battle.

The Demon God's Sword is a heaven-level martial soul, and the consumption required to maintain it is too huge. Every second it turns on, it consumes a large amount of energy.

It was precisely for this reason that Lin Yun had to race against time to kill as many giant beetles as possible in the shortest possible time.

In just a few minutes, Lin Yun had exhausted all the vitality in his body.

But fortunately, Lin Yun still has the hole card of the Yuan inscription.

He immediately activated the Accumulation Inscription, extracted the Reserve Vitality from the Accumulation Inscription and continued to fight.

Every few minutes, Lin Yun had to re-extract the vitality from the Yuan Accumulation Inscription to maintain the consumption required by the martial soul.

……

Half an hour later, all the giant beetles were all eliminated by Lin Yun and all of them were used as energy to transform Lin Yun's body.

After being transformed by these energies, Lin Yun's skin became lustrous and full of heavy metal texture, which was the effect of the increased density of elementary particles.

At this time, the strength of Lin Yun's body had reached the point of being very perverted.

Even if he hadn't cultivated the golden steel body of the Immortal God Body to a small level, his body's defense power had already surpassed that level.

An ordinary warrior in the realm of a warrior can already hurt Lin Yun with an ordinary weapon.

When Lin Yun secretly felt the changes in his body, the voice of the Phantom Emperor suddenly sounded out of thin air, and then two light gates appeared in front of Lin Yun.

Lin Yun didn't have the slightest intention of retreating, and without thinking, he chose to enter the red light gate and enter the fifth layer in one go.

As soon as the scene changed, Lin Yun came to a world that could not be described in words, like purgatory on earth.

"Fifth layer, Endurance Trial!"

As far as the eye can see, it is a red earth paved with countless lava stones.

Between the lava rocks, tumbling magma flows, isolating the lava rocks and forming small islands.

Standing on these "islands", even the air became so hot that even the shoes seemed to be melted.

Beneath your feet is a scorching lava purgatory, while overhead is a storm of ice and snow that is extremely cold, like a giant monster that envelops the entire sky, as if it wants to swallow the earth beneath your feet.

In the midst of the ice and snow storm, violent lightning flashed all the time, bombarding the ground one after another.

Hot and cold air currents alternate between lava purgatory and ice storms, creating a raging high-pressure hurricane that is so fast that it can tear apart the human body.

Being in the midst of this high-pressure storm is like being in a dense liquid, and it is difficult to even move your feet.

Lava purgatory, ice storms, lightning and thunder, hurricanes, and harsh environments are like stepping back in time.

If you were an ordinary person, any kind of extreme conditions here could kill them in an instant.

And at this time, Lin Yun was suffering from the devastation of four extreme conditions at the same time!

He sat cross-legged in the lava rock, the heat rising and scorching his body, making his skin red, and his whole body smoking.

But he sat there as if nothing had happened, as if he didn't feel the heat at all.

The raging hurricane was like an invisible blade, cutting his body one after another, cutting all his clothes into pieces, but it could not leave a single scar on his body.

Brilliant lightning fell from the sky, roaring and striking his body, blasting the lava stones beneath him.

However, he still sat unresponsive on the cracked lava stone, his whole body still unscathed, not even a single piece of skin broken.

In this way, the three natural energies continued to destroy Lin Yun's physical body one after another, and at the same time, they were constantly refining Lin Yun's physical body, as if they were tempering steel.

However, fortunately, the vitality of this layer has been converted into natural energy, which is used to maintain this extreme natural environment, and has not converged into an enemy.

Since Lin Yun entered this level, he had never seen an ownerless soul.

Lin Yun quickly understood that the enemy at this level was actually the natural environment itself.

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The natural environment is both his enemy and his reward.

As long as he adapts to the natural environment here, he will be able to develop resistance to the three natural attributes of wind, fire, and thunder.

In this way, he would not have to fear the attacks of these three natural energies in future battles.