Arnold, Chelle, <> and the others have successfully moved to the underground facility by using the transfer magic circle.

"Well, it's still dark here. And there is a bad smell.

Arnold stopped breathing. It's not a problem because he is not human.

"The composition of the air ...... is 82 percent nitrogen, 3 percent oxygen, 12 percent carbon dioxide, and 3 percent other noble gases. rare gases. Atmospheric pressure is 0.89 bar."

Chelle analyzed the data.

"So you don't think there's anything alive in there?"

"Yes."

"Chelle, can you turn up the light a little brighter?"

Arnold's body is about the same size as a human's, so it is too dark for him to see clearly with the emergency lights.

"Leave it to me."

But Chelle is different.

She is an automata with full support functions.

"<>"

"Yes, it's brighter now."

Arnold knew that there was nothing special in the room with the transfer magic circle, but he looked around just in case.

Then he saw what looked like a map on the wall.

"Is this a map of the ...... facility?"

"It looks like it."

It was a good discovery.

Because it turns out that there is one hidden room in addition to the one that <> investigated.

It may not be a secret, however, if it is on the floor plan on the wall of the room where the transfer magic circle is located.

"Well, whatever. Let's take a look at it first.

"Yes, Master Arnold."

Arnold walks away with on his shoulder.

* * * * * *

We start with the next room.

It was what appeared to be a golem hangar with only broken golem parts lying around.

Arnold picked up a piece of Golem that was lying around.

It was about 2 cm in diameter and 10 cm long.

It was an actuator ...... probably used as a muscle.

"It has a piston and a cylinder, and it expands and contracts with magical power. ......"

If it is for a golem, it is a very unusual structure.

Jin might have said that it is more for a robot than for a golem.

A similar analogy would be the .

A metal shaft extends from a metal cylinder.

And there were five terminals for inputting magical power.

"I've never seen this model before. ......"

Arnold decided to take this part home.

* * * *

The next stop was the materials warehouse. It is empty.

"Hmmm, nothing to see here."

"It's really empty."

We let that be the end of it and go to the room where the accommodation is located.

"It's not very comfortable, but I guess it can be used for overnight stay ......."

Arnold used to be an engineer and has stayed overnight in a laboratory.

Compared to that, the accommodations here are fairly well equipped.

The room has five bunk beds, which means that it can accommodate 10 people.

There is a table in the center of the room and three washbasins on one wall.

Three toilets for three people can be accessed through a door on the back wall.

"Let's check the air conditioning, too."

"Yes."

Arnold checks the air conditioning system in front of the workshop.

The equipment itself was the same as the one used in the underground base at Fort Rutgalla, so it was easy to check.

It seems that the system was not stopped due to a malfunction, but was forced to stop and then not restarted.

"After we make sure there is no danger in the facility, shall we try to run it?"

"Yes."

And so, finally, the center of our interest, the workshop, is investigated.

* * * * * * * * * * * * * * *

"Nah, this is the workshop or ......."

Arnold couldn't help but let out a happy sound.

After all, he is a technician or a craftsman.

"It's well equipped, isn't it?"

"Yes, it is. At least better than the basement of Fort Lutgla.

Chell agreed with Arnold's words.

"I wonder what they were researching or building."

"...... wait, Mr. Arnold."

"What is it, Chell?"

"What's wrong, Chelle?" "The air conditioning is off and there's no dust. The air conditioning's off, yet there's no sign of the cleaning golem. Isn't this a little strange?"

"Yes, that's a good point. Yes, that's definitely strange."

There are two reasons that come to mind immediately.

The first is that there was no dust in the facility to begin with.

The second is that it was cleaned relatively recently.

Arnold guessed that the first was too much to be true, so the second was probably true.

"I'm guessing it's the golem ...... that did the cleaning, but I'm guessing it's shut down now."

"Yes, it is. I think it's the golem that cleaned up , but I'm guessing it's stopped now.

"Does it start up again, or does it start up periodically?"

Chelle developed her own theory on this.

"Perhaps it is activated periodically."

"Why?"

"Why? Yes, because it is cleaned properly. The operation does not seem to be faulty. I think this is because the system is regularly activated according to the settings.

"I see, that's a perspective only Chel could have."

I'm sorry.

"So, from your point of view, when do you think it was last cleaned?"

If we know when the next cleaning will take place, we can consider the possibility of running into the cleaning golem.

"Well, I'd say somewhere between two and ten days ago. It's still clean, so it will be a long time before the cleaning golem is activated.

"Okay, okay."

We can't be 100 percent sure, but hopefully until the investigation is complete, there is an element of uncertainty ...... in this case, the cleaning golem.... Arnold is hoping to avoid any encounters with the golem....

"So we can investigate this place a little more calmly.

"Yes, Mr. Arnold. I'll take care of the perimeter, so please take your time. ......

No, that's what I'm trying to do.

<> sir?

I'm the one in charge of the cage, so please be considerate of my cherished friend.

"Thank you."

takes the lead in the perimeter, while Arnold and Chelle investigate the workshop.

This division of roles allows for an efficient investigation.