The sixth floor of the Tower of Time, the Tirak Research Room.

When Xia Duo came here, the door of the research room was open, and a group of people were sitting around the reception room inside to chat.

A trace of doubt flashed in Xia Duo's eyes, but he quickly reacted, it should be that he asked Taling to send a notice to the members of the Tower of Time just now, so that these people knew that he had returned to the Tower of Time and responded like this.

Intellectually, Xia Duo didn't agree with this form, but when it fell on him, he really didn't hate it, skipped these thoughts, and took the initiative to go up and say hello:

"Tirak, Dean, are you still waiting for me here? Don't do that next time! ”

"We happened to be on break, and we didn't specifically wait." Tirac said with a smile.

However, Xia Duo didn't take this seriously, if it was really a break time, then it was necessary to drive all the apprentices away, leaving only the official mage? Besides, he hadn't heard of any breaks in the Tower of Time.

Even if there is, it is only when the official mage wants to rest, so he has time to rest, and it has nothing to do with the apprentice.

"Okay, let's not talk about that, take me to see the [Warning Talisman]!"

"Well, Master Shado, please follow me!" Tirak stretched out his hand and led the way in front, "The [Alert Charm] is in my bedroom, always on, and there is a finished product that has been placed in the Green Bead Forest to test its limit. ”

The mage's private residence in the Tower of Time, or the research room, has a similar internal layout, from the reception room to the bedroom, it is not far away, when the two of them just stepped into the bedroom range, Xia Duo heard a piercing humming sound, obviously the effect of the [Alert Talisman] is not bad.

At the signal of Xia Duo, Tirac did not immediately dismiss the alarm, but let it go off all the time, and after about ten seconds, the sound stopped.

Noticing that the Alert Barrier hadn't disappeared when the siren sounded, Shado turned around and shouted in the direction of the reception room, "Dean, come here!" ”

Hearing the sound, Dean walked over quickly, and like Shado and Tirac, the alarm sounded again as he first entered the bedroom area.

"Sammy, Edrich, come over here and come in at the same time!"

Sammy and Edrich did so, similar experiments had been done many times inside their labs, and when they entered the enchantment range at the same time, two almost identical shrill humming sounds rang out.

The two sirens sound exactly the same, and overlap more like a single sound, but they are still clearly distinguishable from each other.

Xia Duo looked at the silver cube metal block on the desk in Tirak's bedroom that could almost be grabbed in one handful, and nodded with satisfaction, although there was still a gap between it and the [Vigilance Magic] that the mage personally cast, but for adventurers in dangerous areas, such a [Vigilance Talisman] was completely sufficient.

"Except for the shape and volume, I am very satisfied with everything else."

Although he didn't actually pick it up, Xia Duo knew very well that most of the composition of this silver cube metal block was silver, and the weight was definitely not small, and the shape did not look like it was easy to carry.

After listening to Chado's evaluation, Tirac explained:

"The use of such a shape is to maximize the adaptation to the internal Mithril components, in addition, this volume is the smallest volume at the lowest cost, if you want to adjust to other shapes, you need to adjust the Mithril components, and even increase the amount of Mithril used, if you want to reduce the volume, you need to increase the amount of Mithril used, and the cost will increase a lot."

"It doesn't matter, as long as it can be carried, easy to use and a little more expensive for buyers, they won't care at all!" Xia Duo's hometown even used privacy in exchange for convenience, and now he is only raising the cost slightly, which will not affect sales at all.

After all, the cost of this cube talisman is only about 200 gold coins, and if it is increased, it will be lower than the cost of other similar magic items on the market, which is the advantage brought by technological progress.

And the cost on his side has increased, and he can increase the selling price in the same proportion, transfer this part of the cost to the buyer, and even charge a premium for the ease of use of the product, there are too many things that can be calculated.

Tirak nodded understandingly, "I see, I'll make adjustments as soon as I can." ”

"Don't worry about this, in addition to taking a look at the situation of the [Alert Talisman], there is another very important thing that I need to tell you!"

Back in the reception room, Xia Duo was about to say something about the communication device, but Dean interjected at this time, "Is it related to the meeting that Taling just notified the day after tomorrow?" ”

"It's not related, but it's also related!"

Xia Duo glanced at everyone, and saw that everyone was full of doubts, so he immediately took out a thick stack of materials from the dimensional bag, handed it to Dean, and motioned for him to distribute it to everyone, and then explained:

"These records are a new type of communication spell, and the manufacturing data of the communication spell based on this new type of communication spell, you can take a rough look at it first!"

As he spoke, Xia Duo took out two more unencrypted, unencapsulated half-finished communication instruments and placed them on the table in the reception room, which was actually the laboratory version he had made at the beginning, and it had been tested for a long time now, but it was still undamaged.

Now it is handed over to Tirac to give them a reference when they develop and design the "[Eternal Magic]-type communication magic device".

The [Eternal Magic] type magic item has both the advantages of the "Mithril Component Type Magic Item" and the "[Magic Constant] Type Magic Item", and of course, to a certain extent, it also has the disadvantages of both.

However, the biggest advantage of permanent magic items is not the advantage of use, but the cost is much lower than those two manufacturing methods.

Of course, if you must pursue high-quality products, most of the time it is better to use [Mithril Component] or [Magic Constancy] to make magic items.

For example, the several communication devices made by Xia Duo before were all made by using the method of [Mithril Component].

……

After a while, Tirak closed the information, he looked at Xia Duo, his eyes revealing a little puzzlement and doubt, "Master Xia Duo, this [Demon Net Background Communication] is a 2-ring spell?" ”

"Yes! I know most of you haven't touched the second layer of the Demon Net, but don't worry, things will change soon! ”

"Something to do with the meeting the day after tomorrow?" Tirak asked the question again.

"Yes." Xia Duo did not hide it, and there was no need to hide it.

Although he is now Niya's agent, and he discussed the transformation of the Tower of Time with Nia before returning from Severton this time, a mage is a mage after all, and he can't notify the transformation without saying a word, he was originally going to give the members of the Tower of Time a breath in advance.