The monster in the mirror died.

Then, it suddenly fell to the ground.

It died in a pool of blood.

It never expected that it would die at the hands of this person.

It instantly felt despair. How was that possible?

How could it die just like that?

With such an unwilling feeling, the monster in the mirror died just like that.

"This fellow is so weak. Is he really a Mirror Monster?" Klein muttered to himself.

Actually, it wasn't that Klein was strong just now, but that the Mirror Monster was too weak.

Logically speaking, the more the catacombs progressed, the stronger the crypt creatures should be.

However, Klein felt that the strength of this Mirror Monster was inferior to some of the crypt creatures he had encountered in the previous catacombs.

It was even inferior to some of the crypt creatures he had encountered in the beginning.

Klein looked at the corpse of the monster in the mirror and slowly disappeared.

The doubts in his heart didn't dissipate.

This feeling was too strange.

However, more than ten seconds passed.

Klein didn't hear the system's notification sound.

There was no notification sound of successful decomposition.

There was also no notification sound of reward.

Could it be?

Klein's pupils constricted.

Could it be that it was fake?

Subconsciously, Klein hurriedly looked around.

He suddenly had a sense of danger. This sense of danger came from this catacomb!

No, it was from this Mirror World!

The next second, Klein felt a black shadow flash past him!

The black shadow was extremely fast, so Klein didn't see it clearly at all.

All he knew was that when the black shadow disappeared, Klein turned his head and saw a foot.

To be precise, it was a claw.

The claw was extremely terrifying.

Klein could roughly see the outline of the claw.

The claw wasn't very terrifying in terms of outline.

But it gave Klein a terrifying feeling.

Klein instantly took a few steps back.

He held the Firestorm Saber tightly in his hand.

The flames released by the Firestorm Saber burned intensely once again.

Fire wall!

A wall made of flames blocked Klein's path.

The fire wall emitted intense firelight as flames shot in all directions.

It directly enveloped the entire wall.

This was Klein's defensive attack.

He used the barrier of the fire wall to ensure that the place wouldn't easily get close to him.

Even if it got close to him...

Under the firewall's barrier, Klein would be able to see its tracks clearly.

After the firewall completely enveloped Klein, Klein immediately observed the surroundings of the catacombs.

Up until now, the biggest possibility for this fellow to attack Klein was from underground.

Klein's thoughts sank as he instantly released a water element from underground, directly surrounding the underground with a water barrier

This barrier looked very soft.

However, it was very defensible.

Its defensive function was stretched to the maximum!

Any attack that came into contact with this water barrier would be reflected by the softness.

This was strength!

Everything was ready. Klein wanted to see when the opponent would attack, and which direction would the attack come from.

All of this was very important.

That was because it determined Klein's judgment of the person's attack habits.

Every crypt creature had a set of attack methods.

This was what Klein had discovered in the catacombs world during this period of time.

Some crypt creatures had very simple attack methods.

Some attack methods were very diverse.

The stronger the crypt creatures were, the more diverse their attack methods became.

However, Klein also had his own summary of their attacks.

As long as Klein could exchange a few blows with them, he would be able to immediately know their attack patterns.

And after knowing their attack patterns, Klein could quickly come up with a counter-attack to counter their attack patterns.

This could also greatly increase Klein's success rate in defeating them.

However, despite the Buddha paying, the crypt creature still didn't attack Klein.

Klein was momentarily stunned.

'This fellow is so calm?'

As he entered deeper and deeper into the catacombs...

Klein realized that the crypt creatures were becoming more and more calm.

They would observe Klein once.

Or perhaps, they would suddenly appear when Klein let his guard down.

This also meant that compared to the crypt creatures from the past, the crypt creatures were becoming more and more intelligent.

They were waiting for the moment when Klein's attention was scattered before making their move!

The success rate was the highest!

But Klein knew this very well.

After all, many times, Klein would do the same to other crypt creatures.

Therefore, Klein constantly warned himself not to be distracted. He had to carefully observe his surroundings.

Then, he would discover the exact moment when the crypt creature was about to attack.

Klein looked at the black shadows around him.

He carefully used his eyes and ears to determine if the other party was attacking him.

After all, he was in the light while the other party was in the dark.

He was in a passive situation.

As for the other party, they could take the initiative to attack.

Time passed by minute by minute.

Klein still didn't see the guy attack.

'Is this guy waiting for me to run out of energy before attacking me?'

'If this goes on, I'll be too passive.'

Klein couldn't help but analyze in his heart.

'This guy is terrifyingly smart, and it's simply too patient.'

Klein couldn't help but admire this person's patience.

It was the most patient of the crypt creatures he had ever seen.

It was practically like a hunter.

Klein kept pinching his own flesh, warning himself not to let his guard down.

Once he was distracted, something would definitely happen.

Once the other party found a flaw, Klein could directly say goodbye to this world.

But Klein obviously couldn't do that.

He was too passive.

'If this continues, there's no need for me to make a move. Once the other party waits for me to run out of energy, it can quickly finish me off.'

Klein was very worried.

'Should I?'

'Take the initiative to attack?'

Such an idea suddenly appeared in Klein's mind.

The moment this idea appeared, Klein instantly adopted it.

That's right, he had to take the initiative to attack. If he didn't take the initiative to attack, Klein would definitely die a terrible death.

He could already imagine the scene.

He couldn't hold on any longer due to his energy, and his opponent would find an opportunity to insta-kill him.

Rather than that, Klein might as well directly attack and kill his opponent.

An attack was the best defense!

With that thought in mind, Klein instantly attacked!

'Since I don't know where you are, I'll use my strongest flame and burn this catacombs world to ashes!'

With that thought in mind, Klein instantly released thousands of flames.

This was the strongest flame that Klein could release at the moment!