When Klein saw this scene from afar, he had goosebumps all over his body.

The excitement in his heart instantly disappeared.

The brother below also seemed to know that it was wrong.

They shouldn't have been so reckless.

Therefore, they quickly softened and stopped stirring Klein's heart.

At that moment, the body of the traitor, Zekos, in the sky had completely melted.

The melted body could still be seen.

However, suddenly...

With a bang, the betrayer, Zekos, exploded.

The exploded flesh did not fall to the ground. Instead, it instantly rose into the air.

Fist-sized pieces of flesh and blood ran into the air.

They instantly covered the sun in the sky.

However, this was not the end. After reaching the sky, all the blood beads were controlled by an invisible force, instantly condensing into a Blood Lake the size of a basketball court.

After the Blood Lake took shape, the aura on her body suddenly exploded.

The betrayer, Zekos, had the strength of tier 7.

But the aura that erupted from her body rapidly advanced.

Intermediate tier 7!

Upper tier 7!

Peak tier 7!

Boom!

Tier 8!

Intermediate tier 8!

Upper tier 8!

Finally, the sea of blood shook, and the aura finally stopped at the peak of tier 8!

After it stopped, the aura suddenly charged out.

Klein instantly felt the power of the Blood Lake from where he was.

He couldn't help but frown.

It had to be known that Klein had only advanced to tier 8 because he had devoured a large amount of blood aura.

However, his strength was only at the middle-stage of tier 8.

After tier 8, he would be at the first firmament of the first level. The increase in his strength was extremely terrifying.

And the Blood Lake monster had suddenly reached the peak of tier 8, which made Klein somewhat solemn.

He couldn't help but think to himself, 'Looks like the Undying Dead's final burst of power, although it destroyed most of the energy shield's power, also allowed him to display his trump card.'

'Peak of tier 8? And in such a strange form? This is difficult?'

Just as Klein was deep in thought...

The Blood Lake in the sky changed again.

Rumble--

The Blood Lake crazily absorbed the surrounding heaven and earth elements.

At first, it wasn't fast.

But later, as the Blood Lake reached the peak of tier 8 and its strength was released, half of the heaven and earth elements in the catacomb were stirred.

Instantly, they gathered towards the Blood Lake at a speed visible to the naked eye.

And the Blood Lake was like a gigantic glutton. No matter how many heaven and earth elements came, they wouldn't reject them and directly swallowed them into their stomachs.

Looking at the Blood Lake in the sky, Klein's expression sank.

If he wasn't wrong, the Blood Lake was increasing its foundation.

Furthermore, its body seemed to have grown larger!

Klein's guess was right. The Blood Lake was indeed slowly growing larger.

After about half an hour, the body of the Blood Lake had grown to a radius of a few kilometers.

Furthermore, it was still growing at a speed of a hundred meters per second.

Upon seeing this, Klein's expression changed.

He thought to himself, 'I can't continue like this.'

It seems like the growth of the Blood Lake is limitless. In just half an hour, it absorbed a huge amount of heaven and earth elements. Not only did it not explode, but it was also constantly expanding its body.

And not only that, Klein could sense that the strength of the Blood Lake was still improving, albeit at a slow speed. However, the Blood Lake was already at the peak of the tier 8, and its strength far exceeds his. It would be even more disadvantageous to him if it didn't improve by a little.

With this thought in mind, Klein once again felt the magic in his body.

At this moment, under Klein's rapid recovery, the magic in his body had already recovered by more than half.

The remaining half required more time.

At least, it couldn't be recovered now.

With this thought in mind, Klein gritted his teeth and interrupted the recovery of the magic. He picked up the Endless Sword and stood up.

He knew that he couldn't allow the Blood Lake to continue growing.

Otherwise, with the speed at which the Blood Lake was growing, he wouldn't be able to put up any resistance if he were to reach tier 9.

Following that, Klein picked up the Endless Sword, and three or four Golden Spiral Shurikens condensed on the blade's glow as they whizzed toward the Blood Lake.

The Blood Lake in front of him was very mysterious.

Klein didn't dare to be careless.

Therefore, he prepared to use the Golden Spiral Shurikens to test the waters.

Soon, three or four Golden Spiral Shurikens whizzed towards the Blood Lake.

The Blood Lake seemed to sense it.

Not only did it not dodge, it opened its bloody mouth towards the Golden Spiral Shurikens.

The moment it opened, the terrifying wind caused the Golden Spiral Shurikens to lose its balance. It swayed up and down in the air, and it even charged towards the mouth of the Blood Lake at an uncontrollable speed.

Upon seeing this scene, Klein's expression changed.

He knew that the Blood Lake wasn't easy to deal with, but he didn't expect it to have such a move!

Following that, the corners of his mouth curled up. "Since you want to eat, I'll let you eat to your heart's content."

Following that, Klein directly controlled the Golden Spiral Shurikens to charge at the mouth of the Blood Lake.

But the moment the Golden Spiral Shurikens approached the Blood Lake, Klein directly controlled the Golden Spiral Shurikens to self-destruct.

Boom!

Boom! Boom!

Boom! Boom!

Three or four Golden Spiral Shurikens exploded violently.

The power was comparable to the power of hundreds of TNT explosives.

He could only see --

The Blood Lake, which was at the center of the explosion, didn't expect the Golden Spiral Shurikens to explode. As a result, it was caught off guard and its entire mouth was blown to smithereens.

The speed at which it absorbed the elements of heaven and earth instantly slowed down.

But soon, the Blood Lake returned to its original big mouth as though nothing had happened.

Upon seeing this scene, Klein frowned.

He thought to himself, 'Looks like this Blood Lake isn't easy to deal with.'

Then, he approached the Blood Lake.

Not far from the Blood Lake, a system notification appeared.

[Mutated Blood Lake (Peak Tier 8)]

[Status: Currently in a state of rapid growth. If left unchecked, it will eventually break through tier 8 and enter tier 9.]

[Weakness: There is a blood essence core in its body. As long as you can find it and blow it up, you can destroy the Mutated Blood Lake.]

The system's prompt swept across Klein.

He looked at the key point. The blood essence core.

Klein couldn't help but mutter, "It's so huge. I'm afraid it won't be easy to find it!"

"Furthermore, the other party will definitely not sit still and wait for death. It'll be even more difficult. However, if I don't curb it, I might never have the chance to do so if the Blood Lake really grows to tier 9!"

With this in mind, Klein sighed.

Feeling helpless, he could only harden his heart!

Following that, he raised the Endless Sword. This time, Klein didn't release the Golden Spiral Shurikens, but chose the intermediate Whirlwind spell.

As Klein infused his magic into the Endless Sword, he swept it in front of him. Before long, seven or eight Whirlwind spells appeared in front of Klein.

Then, Klein finished accumulating his magic and pointed at the Blood Lake in the sky. The intermediate Whirlwind spell whizzed over.

This time, Klein was careful.

'Since you can devour, I'll take the front!'

'I want to see if you can devour the entire body.'

'Furthermore, the speed at which the intermediate Whirlwind grows is faster than the low-level Whirlwind.'

'As long as the intermediate Whirlwind is given time, it can reach the level of a half-step natural disaster.'

'It just takes a long time.'

'But it's enough for the current situation!'