"Could it be the miraculous effect produced by the liquid magic this time?"

Klein was stunned for a moment before he couldn't help but ask.

He didn't expect the magic core to have such a wondrous effect.

Not only did it increase Klein's magic reserves by more than twice, it also increased Klein's magic power.

Klein dispelled the half-step catastrophe in his hand and released the Golden Spiral Shuriken once again.

The Golden Spiral Shuriken that appeared stunned Klein for a moment.

'As expected.'

'Not only is it a half-step catastrophe, even the power of the Golden Spiral Shuriken has increased by three to four times.'

'If I were to face the mysterious person again, my Golden Spiral Shuriken would be enough to make him suffer.'

Klein tried other spells to confirm this guess.

Therefore, he was even more excited.

He exclaimed that he didn't lose out this time.

After regaining his mood, Klein waved his hand, and the Endless Sword in the sky flew towards him.

At that moment, the primordial elemental particles of the Endless Sword had already returned to the Endless Sword's body.

Looking at the much dimmer Endless Sword in front of him, Klein knew that the Endless Sword was already damaged.

Therefore, with a thought, he opened the probing of the Endless Sword.

[Weapon: Endless Blade (Damaged)+8]

[Rank: Intermediate Legendary (Original: Low-Grade Divine Artifact)]

[Physical Attack+761]

[Magic Attack+912]

[Casting Speed+50%]

[Attack Speed+20%]

[Enhanced Damage Increase+40%]

[After equipping, five elemental attacks will be increased by 50%, and attack power will be increased by 80%]

[Remark: After being damaged, the weapon's combat power will be reduced by 50%.]

Looking at the system template, Klein couldn't help but shake his head.

As expected, it had still been reduced to a legend.

Not only that, even the elemental attacks after equipping had been reduced.

But fortunately, he had obtained the magic core this time.

After absorbing the magic core, Klein's strength had at least doubled from before.

Compared to the 30% reduction in the Endless Sword's combat strength, this wasn't an unacceptable figure.

It was just that he didn't know how to repair it. After all, the complete Endless Sword was a divine artifact!

Klein tried to activate the system.

Suddenly, a notification appeared in front of him.

[The Endless Sword divine artifact has been damaged. In order to restore its endless power, the host can use five elemental runes to recharge the Endless Sword. He can also find the Cosmos Stone to finally repair the Endless Sword and restore its past divine power.]

Cosmos Stone?

Klein frowned.

It was another material he had never heard of.

On the other hand, Klein still had many of the five elemental runes. He wasn't lacking in that aspect.

It seemed like he had to think of a way to find the Cosmos Stone.

Following that, Klein set aside the idea of repairing the Endless Sword. After all, he didn't have the Cosmos Stone now, so he could only discuss it later.

The key now was the last boss.

The rule of the catacombs was that Klein couldn't leave without killing the last boss. Furthermore, the boss he killed didn't drop anything.

Therefore, the Rogue Archer had to die.

Furthermore, there was a platinum treasure chest.

This was the best treasure chest that Klein had encountered so far. He really didn't know what good things would drop.

Klein looked at the platinum treasure chest in the middle of the forest and couldn't help but reveal a hint of curiosity.

But the most important thing now was to find the Rogue Archer.

Klein looked around.

At that moment, the Rogue Archer, who had been active, seemed to have completely disappeared. There was no more activity.

Klein wasn't in a hurry. Now that he had fused with the magic core, his strength had long been turned upside down. Wouldn't it be a piece of cake for him to deal with the tiny Rogue Archer?

Following that, with a thought, Klein took out the Endless Sword.

Although the Endless Sword was damaged, it still provided a tremendous boost to his magic.

Especially at Klein's realm, not even a slight increase in strength could greatly change his strength.

After taking out the Endless Sword, with a thought, a row of grayish-black tornadoes appeared on the blade of the Endless Sword.

After Klein's strength increased, the strength of the grayish-black tornadoes also increased.

If one looked carefully, they would definitely notice that there was more blackness on the tornadoes.

The might of the tornadoes was even greater now.

After accumulating his strength, Klein didn't release it. Instead, he said indifferently, "Rogue Archer, do you want to come out on your own, or do you want me to force you out with a half-step natural disaster?"

After Klein finished speaking, he waited for a while. The Rogue Archer didn't come out, nor did he answer. Clearly, he was planning to fight to the death.

With this in mind, Klein curled his lips and said with a smile, "Since you want to die, I'll grant you your wish!"

With that said, Klein waved the Endless Sword that he had accumulated. Following that, seven or eight grayish-black tornadoes flew out in all directions.

After leaving the Endless Sword, the grayish-black tornadoes were like dragons returning to the sea, instantly erupting with a powerful might in the catacomb.

Instantly, the ground shook, and countless rocks collapsed.

A grayish-black tornado was already at the half-step calamity level, let alone so many.

The moment it landed, it completely stirred up the world in the catacomb.

From afar, it looked like the end of the world had arrived.

Klein wasn't affected by his magic. He looked around and wanted to see how long the Rogue Archer could last.

The tornado raged, mercilessly engulfing everything in the catacomb.

Huge gullies appeared on the ground, unable to bear the burden.

From a distance, it looked like the earth had collapsed.

As time passed, the speed of the tornado became faster and faster. Its might also became more terrifying. Soon, the entire space was completely surrounded by the endless tornadoes.

And at that moment, the Rogue Archer finally appeared when the grayish-black tornado blew into the platinum treasure chest.

As Klein expected, the grayish-black tornado was still unable to do anything to the platinum treasure chest.

But it was also unable to restrict the grayish-black tornado.

Soon, a tornado devoured the platinum treasure chest.

And at that moment, an extremely disheveled figure hurriedly escaped.

Klein instantly slashed over.

There was no one else here, so the person in front of him was definitely the invisible Rogue Archer.

However, what Klein didn't expect was that the Rogue Archer was in such a sorry state.

His body was covered in fine wounds.

Countless amounts of blood slowly flowed out along the fine wounds, making the Rogue Archer feel as though he had been tortured. His entire body was covered in blood, making him look extremely terrifying.

Through the blood, Klein saw the Rogue Archer.

The Rogue Archer was similar to a goblin.

The only skin left was green.

He wasn't tall, only about a meter.

He wore a hat on his head, and his original appearance could no longer be seen.

In his right hand, he held a very large bow and arrow.

The bow and arrow were very large, even larger than the Rogue Archer, so much so that he was dragged to the ground.

At this moment, the extremely battered Rogue Archer also looked at Klein.

Enemies were red-eyed when they met, not to mention a mortal enemy!