The intermediate Whirlwind whistled towards the Blood Lake in the sky under Klein's guidance.

The Blood Lake also sensed Klein's attack, so it simply opened its bloody mouth where the Whirlwind had attacked.

But how could Klein let it have its way?

Then, with a wave of his hand, seven or eight Whirlwinds separated in the middle.

They attacked the middle, south, west, and north directions of the Blood Lake.

The whistling intermediate Whirlwind spell was extremely fast. In an instant, it arrived at its destination and brazenly charged at the Blood Lake.

Pfft--

Pa!

Rip!

The intermediate Whirlwind was like a meat grinder as it crazily stirred the body of the Blood Lake.

Countless amounts of blood separated from the body of the Blood Lake and crashed to the ground.

The body of the Blood Lake was visibly decreasing.

Seeing this scene, Klein's heart calmed down.

He thought to himself, 'If this continues, the Blood Lake will be completely consumed by the intermediate Whirlwind sooner or later.'

'Not only that, while the Blood Lake is being consumed, the intermediate Whirlwind is still growing. In other words, the more it reaches the end, the less likely the Blood Lake will be able to finish off the Whirlwind.'

Just as Klein was carefully observing the Blood Lake to see when its core would be revealed...

The Blood Lake moved.

Its massive body took up half of the sky.

Suddenly, there seemed to be some movement.

Whoosh! Whoosh!

Whoosh! Whoosh!

Klein frowned.

He saw the Blood Lake in the sky automatically shrink.

After shrinking, the Blood Lake was released with a bang.

In an instant, the Blood Lake made use of the force to open countless tiny openings in every direction of its body.

However, the defensive power of the openings was very low. Under the strangulation of the intermediate Whirlwind, they were directly melted before they were fully formed.

But soon, the situation changed!

The intermediate Whirlwind in the sky actually continued to weaken.

Klein couldn't help but be taken aback when he felt the current state of the intermediate Whirlwind in the sky.

Then, he looked at the small mouths.

"This is devouring?"

"Could it be that the entire body of the Blood Lake has the effect of devouring? If that's the case, it's going to be difficult!" Klein said with a frown.

If that was the case, the attrition tactic would naturally have no effect.

That's because you can't possibly compete with such a massive Blood Lake in terms of durability, right?

Furthermore, this fellow had an unlimited growth rate.

Just as Klein was thinking about what to do...

Suddenly, a system notification popped up.

[Mutated Blood Lake, Tier 8 (Peak).]

[First Form: Engulfing the entire body. Every part of the body can independently activate the engulfing skill. Although the speed is slow, it can be reborn indefinitely. Furthermore, it can turn the engulfing magic into resources for its own evolution.]

[Weakness: Infinite devouring has a two-second recovery period.]

Looking at the system's notification, Klein's eyes lit up.

He couldn't help but think to himself.

'As expected! If it's really infinite devouring, then what am I fighting for?'

'Could it be that I'm going to use the Endless Sword to engage in melee combat? If I don't use any magic attacks, how long will it take to engage in melee combat?'

'Most importantly, the opponent is still immortal. As long as I can't find the opponent's core, there's no way to completely kill it. Therefore, melee combat is absolutely not advisable.'

At that moment, the Whirlwind spell in the sky had been completely absorbed by the Blood Lake.

After the absorption, the devouring didn't end. Instead, it used its strength to absorb the blood qi that had fallen to the ground.

The blood qi that had fallen to the ground flew up and entered the Blood Lake's body once again.

With the augmentation of the blood and flesh, the Blood Lake returned to its previous size.

Not only that, its body was even larger than before!

Upon seeing this, Klein frowned.

As expected, not only did his intermediate Whirlwind fail to make a contribution, it even helped his opponent!

From the looks of it, he had to be very careful in his attacks.

If he were to be seized by his opponent, it was very likely that he would take another step forward. By then, it would be difficult for him to fight!

With this thought in mind, Klein made another move. Taking advantage of the cooldown of the Blood Lake, he directly cast seven or eight Golden Spiral Shurikens.

The formed Golden Spiral Shurikens whistled as they charged towards the Blood Lake in the sky.

This time, it was the same as before. Klein directly controlled them to scatter and strangle the body of the Blood Lake.

Under Klein's control, the Golden Spiral Shurikens, which had reached their predetermined location, cut through the body of the Blood Lake at an even faster speed.

The ability of the Whirlwind was to strangle and spread out from a single point, completely annihilating everything.

However, the Golden Spiral Shuriken was different. It was a cutter. As long as a predetermined location was set in advance, the Golden Spiral Shuriken would be able to directly cut through the points, instantly forming a large piece.

In just a few short seconds, the Golden Spiral Shurikens had indeed succeeded. Countless blood clots fell from the sky, smashing onto the ground and raising endless dust.

Then, he looked at the Blood Lake in the sky, which was shrinking at a speed visible to the naked eye.

At this moment, Klein's face lit up.

He thought to himself, 'If that's the case, in half an hour, the Blood Lake will be completely cut by itself. When I find the core, I'll be able to completely destroy the Blood Lake.'

But at that moment, the Blood Lake shook once again.

Suddenly, the Blood Lake opened its mouth and its body rapidly contracted.

About a few seconds later, the massive body of the Blood Lake was curled up into a ball.

'Sh*t!'

The Blood Lake, which had shrunk to its limit, spat out a huge meatball.

The meatball was completely red, and it was filled with rolling flesh and blood.

From afar, it looked extremely disgusting.

Most importantly, the flesh and blood were still rolling up and down in the meatball.

Countless amounts of blood splattered everywhere, and countless amounts of flesh and blood collided, making Klein feel like vomiting.

But not long after, the flesh and blood splattered.

There was a bang.

The flesh and blood spread out from the middle.

The original meatball turned into a pancake.

From a distance, the pancake actually looked like a human.

Just as Klein didn't know what the other party was up to...

Suddenly, the pancake began to recharge.

Before long, a humanoid monster appeared in front of Klein.

[Mutated Blood Lake, Tier 8 (Peak)]

[Second form: Doppelganger. This doppelganger has all the abilities of Traitor Zekos. Furthermore, her strength has reached the early-stage of Tier 8. Furthermore, with the Blood Lake as a foundation, she has unlimited magic and unlimited vitality.]

[Weakness: Once it explodes, there will be a two-minute reset period. After that, the Blood Lake will give birth to another doppelganger.]

Looking at the system notification, Klein frowned.

'This isn't good news!' he thought to himself. 'It actually gave birth to Traitor Zekos. Traitor Zekos, is very powerful, especially with her strange magic. Once she attacks, there's no way for me to get close.'

'Looks like I have to think of a way to take her down first.'

The Blood Lake clone that appeared in the sky didn't immediately attack Klein.

Instead, she extended her finger and pointed at seven or eight Golden Spiral Shurikens. She muttered softly, and before long, countless blood-colored magic rain appeared in front of her finger.