'This flame should be able to burn the crypt creature to ashes.'

Klein thought to himself.

Klein was very clear about the power of this flame.

This was the strongest flame!

This was Klein's strongest flame at the moment!

Furthermore, not only was this flame powerful, it also had another point.

It lasted for a very long time.

This wasn't something an ordinary flame could compare to.

Only with this kind of flame could the crypt creatures be burned to ashes.

'This fellow, I wonder if this flame can make this fellow feel pain?'

Klein couldn't help but feel a little worried.

After all, some crypt creatures wouldn't be disturbed by the power of the flame.

For example, the Mask Monster. No matter what, Klein's flames couldn't do any damage to it.

Klein had no other choice.

If the Mirror Monster had resistance to Klein's flames, then Klein would feel terrible.

After all, Klein was the most familiar with such a large-scale attack.

However, time passed by second by second.

Klein realized that the fellow still hadn't come out.

He had clearly seen the shadow just now, but why did it suddenly disappear?

Klein was somewhat puzzled.

'Could it be that this fellow can hide so well?'

Even this wasn't enough to make this fellow reveal his original appearance?

Klein carefully observed his surroundings. The flames had already burned the entire world in the mirror.

That crypt creature must have been roasted by the flames.

But!

It was useless!

Or rather, this fellow had somehow managed to hide.

Klein frowned.

He thought to himself, 'Why don't I try again?'

'Let's see how long this fellow can last.'

'If it still doesn't come out after a few more minutes...'

'That means this guy is an existence with a high resistance to fire.'

Klein thought to himself. Then, the high-intensity fire was still burning in the entire Mirror World.

This wasn't an easy thing to do.

The high-intensity fire burned the entire Mirror World.

Ten minutes passed.

There was no reaction.

Twenty minutes passed.

There was no reaction.

He could only wait for half an hour...

Klein finally couldn't sit still.

He knew very well that the fellow was currently hiding somewhere in the Mirror World, smiling at Klein.

Since the flames were useless against it, then what about water?

As Klein thought about it, he instantly released many water elements.

After being baptized by the high temperature, the released water elements instantly stirred up a lot of fog in the Mirror World.

The fog instantly filled the entire catacomb.

Soon, the entire catacomb was filled with fog.

Then, nothing could be seen.

Of course, Klein knew that the crypt creature was still waiting for an opportunity at the side of the catacomb.

But if he said that he couldn't see anything in the entire catacomb...

Then, he could only determine the location of both parties through sound.

Klein remained where he was.

He knew very well that once he moved, no matter how careful he was, there would definitely be sounds.

And these sounds would definitely allow the fellow to determine his location.

For this reason, Klein absolutely couldn't move.

Klein looked at the possible location of the fellow and kept thinking about how to deal with him.

The fog continued to spread in all directions.

Klein couldn't see his surroundings clearly either.

However, Klein allowed himself to dive underground.

That's right, even in the Mirror World, this imitated catacomb could enter the underground world.

After Klein entered the underground world, he quietly observed the changes in the world above.

'Was there any movement? Did this fellow come out or not?'

Klein carefully observed.

Suddenly, Klein heard a slight movement.

The movement was very weak.

If Klein hadn't focused all his attention...

He wouldn't have been able to hear it.

'This fellow is moving!'

Klein was instantly delighted.

If it moved, it meant that he had a chance to kill it.

The other party was very powerful.

But that didn't matter.

That was because Klein's strength was definitely above it.

This was Klein's confidence.

Klein continued observing it.

However, unfortunately, the movement didn't happen again.

The movement soon disappeared.

Klein could only roughly determine the location where the fellow had appeared through the direction of the sound.

But it was very vague, so there was no way to be specific.

This thought kept flashing through Klein's mind.

If he were to rush out now, he definitely wouldn't be able to take it down.

He had to continue releasing the hook.

He had to let the fellow lower its guard.

That's right, just like how Klein had released the fog.

That way, the fellow would lower its guard.

It would feel that Klein couldn't see its position clearly. That would make it lower its guard.

Klein had already grasped the thoughts of the fellow. Next, all he needed to do was continue to verify his current thoughts.

Klein thought as he continued to wait

From time to time, Klein would release a ball of flame from his hand and randomly launch an attack at a certain spot on the ground.

Then, the catacomb was instantly attacked by the flames. Sparks flew, and there was a boom.

Following that, Klein immediately dove underground and listened to the movements on the ground.

That's right. Through this opponent, Klein planned to make the fellow misunderstand that he was in that position.

That way, he could create a simple trap in the Mirror World.

However, although the trap was simple, it wasn't that easy to discover.

With this in mind, Klein continued to attack it.

The attack lasted for a long period of time.

However, there was still no movement.

Klein was waiting. He was still waiting.

He knew that at this moment, he couldn't be anxious.

Klein had to be patient.

Otherwise, there was no way he could defeat this fellow.

As Klein thought of this, he continued to quickly demonstrate the flames and attack other places in the catacomb.

As Klein thought to himself, he paid attention to his surroundings.

However, there was still no movement from the crypt creature.

Klein repeated this action.

From time to time, Klein would change some patterns and release some water element runes.

These water element runes could counteract the attacks of the fire elements.

This would create some strange sounds.

The commotion would be greater than a simple flame.

Just like that, it continued.

Klein's hands felt sore.

Finally, just as Klein was about to give up, the commotion from the group sounded again.

Klein knew that the fellow had begun to move.

That's right, it was truly tempted.

The sound of footsteps was different from the last time. It didn't stop after it thought about it once.

It continued to sound.

It was the sound of footsteps!

Judging from the sound of footsteps, the other party's body shouldn't be big.

It wasn't heavy.

But, there were more than one pair of feet?

And there were more than four feet.

There were many feet.

Judging from the frequency of the movement... it should be a complicated animal.