Chapter 168

Chapter 168 Strongest Sage, Plans Campaign

A few minutes after the demon cut off the transmission .

We've safely left the dungeon and come back to the inn .

The city was still in uproar because of the monster raid earlier, but it seems like inns have resumed their operations .

Well, the damage is almost nil after all, it's probably more peaceful compared to when that city ruler was still in power .

"So . . . How do we look for those demons?"

"With this . "

I took out a small magic stone as I replied Alma .

" . . . Magic stone?"

"It kinda feel like the demon's mana . . . "

Just as I thought, Ruli would notice .

"Yeah . This is that demon's mana transmitted through the comm magic . . . . It needs time to stabilize though, so it's still not complete yet . We'll use this to detect the demon . "

It's true that you can camouflage the actual location of the transmission by using relay magic .

However, even with relay, your mana will always be transmitted through the magic no matter what .

It would be a different story if the demon had used a special comm method, but then there would have been a delay in the transmission .

To begin with, searching a wide area by using mana as the basis wasn't widely known even before the decline back then, normally one doesn't prepare for it .

"Detecting mana, you mean . . . with Passive Detection?"

"No, Passive Detection can't cover that wide of an area . It's true that you can widen its search area . . . but there's no way Passive Detection can find our enemy unless they're very close . "

Considering our enemy took precautions for our detection, they must be quite far from us .

Trying to detect them with the assumption that they're close by is a waste of time and labor .

"Which means, there's other methods? Like through Dragon Vein, maybe . . . ?"

"You almost got it right . We're gonna use Dragon Vein indeed . . . But just that won't be enough . We'll use existing facilities . "

Searching a wide area through mana is unusual even before the decline .

Of course, it's not simple to do . . . however, it can be made easier this time .

" . . . Facilities?"

"Yea . There are large-scale magic devices that can search things by using enemy mana . We'll be using that . "

That's right .

The facilities I made in my past life still remain today .

By the way, they're facilities I employed to destroy demons, thus it's possible to thoroughly detect them all in times .

"I never heard of such facilities though . . . . "

"I'm not surprised you didn't know . Those magic devices were created 3000 years ago at the very least, and no one would know how to use it even if they found one . "

"But, Mathi-kun knows their locations and how to use it?"

"That's right . As for the reason why . . . well, it's a long story . "

I can't exactly tell them that my past life created the devices, I've got to make some excuses .

Well, Iris seems like she noticed the reason, she's looking at me with a meaningful glance .

"Well, Mathi-kun's weird knowledge is just like the usual anyway . . . And so, where are those magic devices at?"

"The nearest one is . . . Here . "

I unrolled a map on the desk and pointed my finger at a spot 100 kilometer away from here .

Seeing that . . . Alma shouts out loud .

"So far!"

" . . . But it's only about 100 kilo, isn't it? Shouldn't take long if we run . "

"No well, I agree that we can run there, distance-wise . . . But that's in another country you know?"

" . . . Really?"

"Un . "

Another country huh . . . .

That'd make it hard to move around .

The magic device in question will produce considerably loud noise in the surroundings from the mana shockwave when used .

Thus, we can't exactly slip in and use it in secret either .

"How about this place?"

I pointed at a place on another direction, about 130 kilo away .

From the sensation I got touching the Dragon Vein, there are three facilities in question that are still usable today .

It'll make things easier if even one is located within Eis Kingdom . . .

"That's a foreign country . "

"Then, how about here . "

"Also a foreign country . "

Looks like the magic devices are all in foreign countries .

Well, since there's only three of them in the entire world, the fact that we can reach them on foot is still a good thing though .

" . . . It'll take quite a while before this mana stone stabilizes to a practical level . We need to go to another country in the meantime . "

It's turning into something bigger than I originally thought .

. . . For now, we should secure the king's cooperation .