Knowing that it was a mortal enemy with the elves, the projection plane arcane empire accidentally obtained a little bit of confusion technology, and it was safe and bold to use it on a strategic facility such as a border barrier.

I really don't know if this is arrogance? Or is it arrogance?

In fact, Xia Duo already knew that the destruction of the Arcane Empire was something he had personally experienced, and in the subsequent [Projection Plane: Remnants of the Empire], he learned more details about the destruction behind that great destruction.

The so-called "border enchantment" is almost done under the "guidance" of the elves.

This also made the remnants of the later empire secretive about this past, and at the same time avoided the study of the lost lock like a snake and scorpion, for fear of falling into the way of the elves again.

In the projection plane, Xia Duo once submitted a project application for communication locks at the research institute, wanting to use the resources of the research institute to help him with the project.

However, he was warned by Vice President Samuel, and after he became famous, he inquired several times to learn about the past of the "border barrier".

It is not advisable to completely "take it", but it is also not advisable to "be bitten by a snake for ten years and be afraid of the well rope", and it is the right thing to do if you fall and get up from there.

Since the last bit of afterglow of the [Projection Plane: Arcane Empire] had long since been annihilated in the ruins of the astral dream, Xia Duo could only find a similar projection plane like a needle in a haystack if he wanted to know the details of the border barrier.

However, it doesn't have to be that much trouble.

What Shado needed was a technology that could be used to monitor and even control teleportation spells within the territory, rather than a specific border barrier.

In terms of surveillance, the Tower of Time can do it now, but the Savile Territory is too far away from the Tower of Time to do round-the-clock surveillance.

As for control, this aspect is very difficult, for now, except for the border enchantment of the Arcane Empire, Xia Duo only knows that the elven chain can do it.

Perhaps a lost lock could also be an option.

However, Xia Duo's understanding of the Lost Lock is limited to the cognition of the high mages in the [Sword of Domination], and perhaps some of the information updated by the Cormanso Crown King in the [Projection Plane: Remnants of the Empire].

Perhaps, in terms of the abundance of knowledge of the Lost Lock, he may not belong to any of the elven high mages of the main plane, but when it comes to the construction of the Lost Lock, attack and defense, he is far inferior.

Especially in attack and defense, Xia Duo's practical experience is almost zero, how can he be the opponent of the "old driver"!

What's more, the knowledge of the Mystery he has obtained, except for the very small part of the "update" of the Cormanso King of the Projection Plane, is almost all from a thousand years ago.

A thousand years later (including the main plane) of the compound puzzle system, he was not able to obtain. (Everesca's distributed node design, only partial information is available)

It is true that the elven kingdoms of the main plane are in decline, but it does not mean that all their technologies are in a state of continuous loss, and there is no progress at all.

Although the Lost Lock is also a spell, it is also a vital infrastructure, if it declines to the point where even the infrastructure cannot be maintained and updated, then is there still room for elves to survive in the main plane?

In addition to the composite lock and distributed design, the elf kingdoms must have more progress in the field of the lock.

It is impossible for Xia Duo to use it as a strategic facility until the upper limit of the Elven Lock's technology is not known, but some non-strategic civilian facilities do not matter.

It's also a good time to accumulate skills!

This is also an important reason why Xia Duo supports Niya to research the communication lock, of course, the most direct reason is that Niya wants to do that.

……

After returning to the Tower of Time, Xia Duo was still thinking about controlling the teleportation spell, but after thinking about it, he didn't have a good solution.

It doesn't matter if the territory is small, if the territory is large, then there is really no other way except for the lock.

"Could it be that the Floating City is the only option for the future?"

Xia Duo is not willing to give up the ground, even if the floating city can feed all the people, but if the ground is added, wouldn't it be able to feed more!

What's more, the number of people that can be accommodated in the floating city is always limited, and only the vast land is the basis for the population explosion.

This problem is not too far off, once the Mither energy nuclear experiment is successful, the floating city may be able to rise in a very short time.

And the Mithy energy nuclear experiment, after Xia Duo completes the independent arcane fire device workshop, the speed of the experiment will be greatly improved, if everything goes well, maybe this year can see the results!

……

In the study, Xia Duo and Nia sat opposite each other, and the real-time image on the projection window had been replaced by the construction site of the [Great Xia-Savile Collar Passage].

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After a long silence, Xia Duo asked Nia, "Is there any difficulty in the research of the communication lock?" Be sure to tell me if you need anything! ”

"I was inspired by the distributed node design you talked about last time, and I'm now redesigning the spell elements of the communication lock, which is a very big project, and there are still too few arcanists in the Tower of Time."

Niya understood what Shado was completely aware of, and the Arcanist meant that he had at least a relatively complete basic magical education and was able to participate in the study of the Lock.

But the problem is - wild high-level mages are so hard to find, wild arcanists, Xia Duo is skeptical that they don't exist at all!

Advanced Arcanists must use Advanced Laboratories, otherwise it will be difficult to tear the magic web, and the Mage Tower Organization, which has the ability to build Advanced Laboratories, will let a wild Arcanist go out?

Xia Duo himself will not let it go, and if he wants to use the advanced laboratory of the Tower of Time, he can, provided that he joins the Tower of Time first, and he also has to pay a certain fee (the advanced laboratory is almost a one-time one, and it cannot be reused without the Arcanist's repair).

Even a relatively open, loose organization like the Arcane Federation requires full-time Arcanist employees.

Niya asked this question, but it was really difficult for Xia Duo, and he could only say to this: "I can't change the Arcanist in a short time, and when the new apprentice grows up, the Arcanist will have it, and there are quite a few!" ”

However, what he said was just a word of comfort, the problem that Niya said is really difficult to solve now, and Niya is also clear about this situation, but comforted Xia Duolai:

"It's okay, it's more troublesome at most, and I can do it alone!"

"Hmm!"

He stretched out his right hand and shook Nia's left hand, pulled her to his side with a little force, hugged Nia's body, and whispered in her ear but firmly:

"I will give you the best future!"

But for a short time, he didn't think he could surpass the elves,

The Arcane Empire's Frontier Barrier is a train of thought, elven