"... it's no use keeping your mouth shut. Even if it's invisible to the naked eye, if it's so flashy and magical, we'll know all about it."

"... Matthias, could you possibly say that there are demons in the royal castle?

To my words, I raise my voice as if the king were surprised.

"No, there's no main body. But it's a demonic ritual."

"The ritual... is that like eavesdropping?

"That's the thing. I don't see him."

As I say, I take a piece of wood out of the storage magic and throw it into the corner of the room.

The pieces of wood proceeded as they drew a parabola, about a meter in front of the wall, and fell as if they had been bounced by something.

"You seem to have an entity. But if you physically destroy it, it won't damage the Demons."

As far as the surgical configuration is concerned, it's probably a subspecies of magic called [fixed point simple magic interference].

It's a relatively simple procedure, a magic that allows you to monitor long distances.

In addition, it can also interfere to a degree of turning documents or delivering voices.

Also, although I can't help enough to kill people, on the contrary, even if the surgery is attacked, I can't get through the damage to myself.

In a way, I'd say it's extremely cost-effective magic.

"No way, that's..."

Me and three other people besides the king seem to be solidifying too much of the shock.

And the Demons (magic of) don't seem to show any particular movement I said this.

Well, I guess that's the right thing to do for the Demons. If you don't actually speak up, you can't tell it's just junctional magic.

- So I'll make you speak up.

This procedure has two weaknesses in exchange for low magic consumption.

One is that setting takes time and the range is very narrow.

Installation is ineffective unless, like this room, it is known that a conversation of extreme importance will take place.

And to poke another weakness, I manipulate the exhausted magic to build a very small scale of magic.

"Gosh, what is this..."

Shortly afterwards, from the corner of the room, a voice of confusion sounded.

No damage can be inflicted on the operator via [fixed point simple magic interference].

But that's only a physical attack or a simple magical destruction.

Information transmitted by [fixed point simple magic interference] is processed by the operator's brain.

In other words, we can destroy the brain directly if we mix it with the original information and force it into information that would be harmful to the demonic brain.

"Guh, guh, guh, guh!

The surgical ceremony is about to break with the distressed voice, and the room space can be seen shaking. Although the emergency shut-off function does not appear to be applied to the procedure, the Demon Clan's magic control is insane and the magic seems to be destroying itself.

I used my remaining magic to support it for about half a second, where I ran out of magic.

The lost support procedure extinguishes with the sound of pakins.

"... knocked you down, huh?

"No. I think I could have left some sequelae, but I thought maybe he was dead"

Even if I had the usual magic, I wouldn't have killed him.

If the surgeon was a human, he could have killed him, but the demonic brain is sturdier than a human being.

"... well. Countering eavesdropping, thank you. I didn't know you were diving into this room..."

"I'm talking about the king. Doesn't that sound familiar to your voice now?

"If you ask me, that voice is... former magician captain, Erhardt!

I knew it.

"Did Erhardt ever come into this room?

"Many times. Did you get hit then..."

Then the killer can see for sure in Elkhardt first.

[Passive Detection] If humans couldn't even use them, they would have installed all this magic they could.

"In the meantime, let's put a line on blocking communications magic in a room that needs these kinds of confidentiality."

"Can you do that?

"Some magic can't be blocked, but I thought it was a lot better than not"

Nevertheless, all of its unstoppable magic is complicated for the price of it, so it is likely that it cannot be used by demons today.

If we have also finally granted a technique to warn when the junction is broken, we will certainly be able to deal with it first.

Well, it's Lurii's job to actually grant it.

"By the way, 348 km west of here and 4425 km north. In this position, do you have any idea?

"... wait a minute"

With that said, the king took the map out of the drawer.

"It is supposed to be the territory of our country for once, but in its position it should only be about an abandoned village that has been destroyed by demons in the past.... No way, Matthias..."

"Yes. Apparently, we know where the Demons are"

It's like I'm telling you to reverse detect all that rude reconnaissance magic in front of me.

Okay. A little far, but how did you make the raid?