I have a Synthesizer

He shook his head at Eric, indicating that he was fine.

This time, without waiting for Becky to break down the door, Klein took out his universal key and handed it to Eric.

"This is called the Universal Key, a wondrous item. Take it and try it out."

The universal key was designed with a great sense of artistry, feeling like a small instrument in motion, which made Eric's eyes light up.

"Universal Key? It looks pretty impressive. Can it really open any door?"

"It can open most doors."

Klein nodded. At least, that's what the Synthesizer said.

Taking the key, Eric hunched over in front of the door, fiddling with it for a long time, but he couldn't open the door.

He turned around, somewhat annoyed.

"Are you sure this is called the Universal Key? Can it open most doors?"

Klein said somewhat uncertainly.

"Maybe this lock belongs to that small portion that can't be opened."

Eric tried again for a while, then threw the key back to Klein.

"I thought this was a good thing, planning to borrow it for a while. Trash! Here you go."

Klein took back the key somewhat awkwardly. He was also a little puzzled. Why didn't this thing work? Could it be the wrong way to open it?

At this moment, Becky had already raised her greatsword. Holy aura suddenly erupted, and she slashed the lock in two with one strike, then shrugged.

"Isn't this much faster than using a key?"

"That makes sense."

After opening the door, Eric did not sense anything strange, as in the illusion Klein had encountered.

Being able to control part of his mind and create illusions could definitely not be done by ordinary things or monsters.

Therefore, he was prepared that if a battle occurred, he would definitely not hold back in the slightest. Unexpectedly, after searching the entire third floor, nothing happened.

The only thing that was the same as in the illusion was that the temperature on the third floor was indeed lower.

Logically speaking, this place has been discovered for many years. Those adventurers and academy students should have explored everything long ago.

What valuable things could still be left here?

"Did you find anything?"

Becky glanced around. Although the inexplicable drop in temperature here was a bit strange, she didn't find anything wrong.

"No!"

Eric frowned. His perception ability was also very strong, but he didn't find anything strange either.

However, this was the strangest thing. This church only had three floors, and above that was just an empty dome. So where did this coldness come from?

"Let's go!" Becky said.

Eric didn't agree, but instead turned to Klein with a questioning look.

"Klein, what do you say?"

"You guys go down first. I'll look around here a bit more." Klein wanted to take another look here.

"In this kind of wilderness environment, splitting up is a big no-no," Becky said.

Klein looked at Eric's face and saw that he was also nodding, a rare occurrence of him standing on Becky's side.

"Since splitting up is dangerous, then wait for me for a while!"

Klein's words were all matter-of-fact, completely disregarding Becky's feelings.

Eric, the guy who had been clinging to Klein's coattails for a long time, naturally chose to honestly squat on the side and wait for Klein.

As for Becky, she was a little angry. She should be the leader of this team. Why were all the decisions made by Klein?

But there was nothing she could do. Eric was obviously on the same side as Klein, and Becky couldn't gauge Eric's strength either.

… …

Klein didn't say anything more. He observed his surroundings, sensing the subtle temperature differences here.

Carefully moving his steps, touching every wall, he gradually approached an empty room.

This room was no different from the other rooms. Only by perceiving very carefully could one discover that the temperature here was a little lower than outside.

Although it was very small and subtle, Klein still sensed it.

"It should be here!"

Entering the room, Klein scanned around. It was empty, with nothing special about it.

If there was anything, it was that the smell of dust in this room didn't seem as strong as in the other rooms.

"Although it's hidden very well, it's still not good enough."

He gradually moved his gaze to the ceiling, his eyes narrowed.

"Not bad hiding!"

Klein suddenly made a move. Three bone spurs, thicker than ordinary bone blades, appeared from his arm, instantly piercing the center of the ceiling.

"Boom!"

The ceiling began to tremble violently. Although it had withstood Klein's fierce blow, this ceiling was actually unscathed. According to common sense, this was simply impossible.

The strong recoil force caused all three of Klein's bone blades to break. The strength of this barrier was simply outrageous.

"Shadow!"

Shadow power began to spread on the white bone blade. This dual-extension casting method of bone and shadow became more proficient after Klein's advancement.

Dozens of bone blades accompanied by shadow power bombarded the barrier above his head.

"Crack!"

As Klein's torrential attack continued, gradually, something like a mirror began to show cracks.

Floating energy particles scattered in the room, stirring up Klein's hair. He stared intently at the ceiling above his head.

"Shadow - Impact."

Shadow power was compressed into a line, striking the center of the ceiling like a fleeting shadow.

"Boom!"

Breaking the surface with a point was the best way to attack a barrier. Under the shadow impact, this solid barrier finally shattered.

What appeared behind the barrier was a large face without pupils. The dark eye sockets were staring at Klein.

"Ah!"

The same scream as in the illusion came from the monster's mouth. This was a dual attack of sound waves accompanied by mental shock.

Having just heard the sound of battle, Eric and Becky rushed over, immediately entering a trance-like state, their eyes beginning to become dull.

But Klein, who was already prepared, had already activated the Shadow Guard barrier, his mind highly concentrated, directly facing the opponent's impact, and enduring it.

Klein grinned, gritting his teeth.

"Heh heh."

He leaped up and slashed with his knife, the light of the blade flashed across the room, disappearing in an instant.

Although this monster's ability was very strange and powerful, its physical strength was unexpectedly weak after being approached.

Klein's tentative slash directly split the big face in half.

By the time Becky and Eric woke up, Klein's Falling Stake had already been inserted into the monster's head, dead beyond death.

"What is this thing?" Klein asked, looking at the monster.

Thanks to Tianqingzao 500, Book Friend 7679-100, Wind Drifting Alone 100, Elm Head 2333-200, Book Friend 46895-100, Lonely S Ze 100, Falling Feather 100, Book Friend 10489-100, Book Friend 50864-100,

Thanks to Shao Dun Dun 1000, Xing Dang CHENG233, Book Friend 26991-500, Creek 588 for the reward

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