At the same time, the town of Savile, the former site of the Tower of Time.

This is where the Tower of Time and the portal to Savile are located, and to protect it, a semi-permanent camp has appeared, guarded by soldiers every night.

Dean was still here by Shado, and he had been holding the human-head-sized, unencapsulated communication artifact, the Mithril structure glistening silver in the sunlight, and the five-colored gems that were locked in place as the core of energy.

Although the soldiers stationed around them had no magical vision and could not see the magical aura, just looking at it from the perspective of ordinary people, this laboratory version of the communication artifact was extraordinary.

Every now and then, a soldier would cast a curious look, not only at the machine, but also at Dean, wondering what the mage was doing here, and why he looked a little silly.

Just when Dean was a little uncomfortable by the soldier next to him, a line of text suddenly appeared in front of his eyes-

"Start testing"!

Dean was startled by the sudden vision, and almost threw the communication device out of his hand, but he quickly reacted, knowing that it was Xia Duo who was informing him.

So Dean activated the communication device a little clumsily but without any mistake, and then selected the twin sigil, projected the text "Test 1", and activated the spell, and the aura on the communication magic device suddenly increased by a few points, and then dimmed.

And on the other side, somewhere in the north over a forest.

Xia Duo held the communication device in his hand, waited anxiously, and kept an eye on the situation around him.

After using the 2-ring [Background Communication] to send a notification to Dean, Xia Duo's heart has been hanging, not only worried about the unknown existence that may appear at any time, but also worried about the failure of the test.

After a while, the communication device in the palm of his hand suddenly lit up, and then a line of text "Test 1" was projected.

This is the test method agreed between Xia Duo and Dean before, Xia Duo sends test instructions on his side, and Dean only sends test sequences to check the communication effect, whether there is "packet loss" and the like.

The first communication was in good condition, and Xia Duo didn't notice any unknown existence that suddenly appeared like the previous Grand Arcanist Byron.

I suddenly felt a little lighter.

Then the test continued, "Extreme Triple Test"

- "Test 2", "Test 3", "Test 4"

There is a delay in the three messages, about two minutes, which is the time it takes for the spell to "reload", and of course, it can also be seen as the "cooldown" of the magic item.

In order to reuse magic items, in addition to the elemental cycle created by [Magic Constancy], magic items made with Mithril structural parts must use energy cores.

Of course, the function of the energy core is not its own energy, but for the excitation, exchange, and circulation of the energy transmitted from the magic net.

This is a bit like the principle of automatic loading of bullets in modern firearms, except that the spell is "loaded" again by using the residual energy "primer" after the spell is activated.

Theoretically, magic items can be used an unlimited number of times.

However, considering that the Mithril structure will undergo elemental mutations when carrying energy and the energy core is circulating energy, which will reduce the purity of Mithril and mutate the five-colored gems, the actual magic items have a shelf life.

If you use it too many times, it will break later.

Of course, the purer the Mithril, the more inclusive it is as an energy core, and the longer it will last as a power core.

As for the time of "reloading", it is actually related to the casting environment, because it is a magic item casting, unlike humans, which have subjective initiative, it requires a relatively stable casting environment.

To put it simply, it takes time for the net to calm down after the spell is cast, and if you ignore this, the magic item will "protest", and the "protest" usually comes at the cost of damage.

For the time being, Xia Duo does not need to do the "beyond the limit" test, just test a normal limit communication interval.

Two minutes would be very unaccustomed to earthlings who are used to instant messaging software, but for the mages of the native of Chroma, it will be very fast.

And the less the interval between uses, the frequency of use will be relatively increased, and the service life will be easily reduced.

If you want to do instant messaging with a low threshold of use, you still need a huge external system to support, and it is difficult to do it with a single communication device.

Xia Duo doesn't have this ambition for the time being, so let's make a wave with a low-cost communication tool first.

……

Testing continues –

"Return to the Tower of Time"

Moments later, Dean sent a message of "Test 5", and although theoretically only an extremely calm magic web environment similar to a spell lab could block [background communication], Xia Duo was still relieved when he actually received the message from inside the Mage Tower.

At the same time, the question arises, does this mean that there is a hole in the defenses of the Tower of Time?

Or in the future, the Mage Tower will only retain a fixed communication area, and reshape the magic network environment in other areas to block external signals?

However, there is no need to think about this for the time being, after all, [Background Communication] is not an electronic signal for hacking after all, and the Mage Tower is not an electronic device that can easily be usurped for permissions.

Next, Shado asked Dean to enter various areas of the Tower of Time to test the specific communication conditions.

After some testing, only the two areas of the Arcane Garden and the Spell Lab were completely blocked from communication, and other places also had more or less effects on communication, such as distorted projections, dimness, blurring, and so on.

Due to Dean's limited authority, Xia Duo can't contact Taling for the time being, and of course, even if he does, there are some places where Dean can't go.

Overall, Xia Duo is still satisfied with the test results, after all, it is his own work!

……

Back at the Tower of Time, Xia Duo retrieved the communication device from Dean's hand, and then began the final test, the true limit test.

Once every two minutes, it was used non-stop, and until Xia Duo's patience ran out, he couldn't use this laboratory version of the communication device, and it seemed that it was still somewhat okay.

However, the test still has to continue, and Xia Duo himself has no patience to use the magic weapon until it breaks, so he sent the test task to the "Advance Society" through Taling.

As long as the tower of time is marked as "Enter", anyone can see this quest, whether it is an apprentice or a full mage, the only restriction is that the quest location can only be in the mission management office.

After sending both communication devices down, Xia Duo just had to wait for the results.

However, during this period, he was not idle, the communication magic device the size of a human head is still a little big after all, if you count the "encapsulated" crystal material, it will be very inconvenient to actually use.

It's only natural to zoom out a little bit.

In addition, the "encapsulation" also needs to be tried a few times, which is different from the laboratory version, at this stage Mithril is Mithril and the five-colored gem is a five-color gem, and the two sides are only connected by a lock.

However, the encapsulation is to use other materials, such as crystal, and other cheap gemstones, or even metal and wood, to seal the mythril and five-color gemstones, which play the role of beauty, protection, and encryption.

Once the encapsulation fails, Mithril and the encapsulation material will be mixed together, and it will not be so easy to separate again.