Flower came to the Lime Pine Valley.

The current linden pine valley was surrounded by a thick fog, and it was impossible to see where the original valley mouth was, but Flower seemed to have expected it, took out a metal card, held it in his hand, and went directly into the fog.

This layer of fog is a mystery lock, which Kaichi once found on an island near the academy, but he can't completely restore it, and now it appears to be covered by a fog. If you don't have the metal cards in Flower's hand, you'll get lost in the fog.

After the construction of the Mage Tower in the valley was completed, Kaichi built this simple mystery lock for the valley to hide the linden pine valley so that some people could avoid entering the valley by mistake. Although the name of a "wizard" has spread here, the nearby villagers have long designated this place as a forbidden place, and hunting and cutting firewood are all detours.

Flower soon came to the front of the Mage Tower, this was the first time he had seen the Mage Tower after it was built, next to the cliff that connected the Mage Tower and the valley, Jia Yi and they carved out a step after step in the stone, although the steps were relatively narrow, but at least they did not have to climb up with both hands and feet.

Although the entire mage tower is relatively simple, it does not lack any main functions.

At the bottom is the energy pool, there is a small room next to the energy pool, which is the control room, the control core of the entire mage tower, and then the first floor of the ground is the hall, which is used for guests to rest, the second floor is the library, or called the study, the third floor is the workshop, the fourth floor is the bedroom, and the fifth floor is the exploration room, which is used to observe the surrounding environment.

Originally, there should still be an Arcane Garden, but it was replaced by a botanical garden by Jia Yi, and none of the masters and apprentices specialized in botany, so the Arcane Garden was not of much use.

Flower walked around the Wizard's Tower, and then went to the workshop, where Kaichi was making a huge boxy box that was more than a man tall, and it looked like the box used for magic tricks.

Flower asked curiously, "Jiayi, what is this?"

Jia didn't raise his head, focusing on the work in his hand: "Refrigerator." ”

"Ice, refrigerator?" Flore was a little puzzled, what was this?

Jia Yi carved the rune in his hand, and when he saw such an inexplicable look from Flower, he explained: "I modified the frost circle and put it here, so that it can keep the internal temperature for a long time, and if something is easy to break, it can be stored in it, and it can also be used to make cold drinks." ”

"What's the use of making this?" said Flor, with a mage's characteristic arrogance, "Isn't the Frosty Hand very convenient? Shouldn't you be busy building your own new home now?"

Maybe he thinks that Jiayi's refrigerator is a little too simple, and he doesn't pay much attention to it.

Jia Yi put down the things in his hand: "Isn't there your construction team, I will prepare the things at home first, in addition to the refrigerator, I also prepared heating, the new home does not have such a big bakery, heating is indispensable." ”

Flower was a little noncommittal, and turned to the West End: "The West End is almost built now, and it is about to be ready for sale, do you want to go and see it?" I always felt that you persuaded me to develop the West End just to get land from there to get a new house. ”

"Isn't my suggestion bad?"

When Jia Yi first persuaded Flower, he didn't have this idea, but after he took back the entire West District, he suddenly thought about his new home, instead of finding a good community, it is better to design this community according to his own wishes, and there is no more suitable community for his own heart than the one he designed himself.

Therefore, Jia Yi made a lot of suggestions for the renovation of the West District, and also selected a large piece of land on the east side of the West District to start the construction of his new home.

His new home was not built according to the traditional manor, but was built in the shape of a small detached villa, and his family did not have many people, and he was not prepared to have too many servants, and the manor seemed a little too big. But even the villa is not small, and in the front yard he also dug a big swimming pool.

Although it's a little weird in terms of the current aesthetic, as long as Jia Yi is comfortable.

Jiayi took a small crystal out and said to Flower, "Look at this, do you know?"

There was a bit of pride and ostentation in his tone, and in his hand was a dark red crystal, but it looked a little flawed, and the purity was not high.

"Tongjing, didn't you say that you used up all the teacher's inventory?

Jia Yi raised the copper crystal in his hand a little and faced the light: "The copper crystal has a magical property, if a complete copper crystal is separated, there will be induction between the two copper crystals, one will vibrate, and the other will have the same resonance." ”

Flower didn't quite understand why Kaichi brought this up again, he already knew about it, and he had also visited the Pillar of Fixation under the Mage's Tower.

Kaichi put the copper crystal down: "If the two of them each hold half of the copper crystal, then the vibration generated by one side will also be received by the other side, so that they can communicate over a long distance." ”

"This idea is not unusual, right? I remember hearing that there is a kind of twin sandflies in the Demon Domain, which can sense each other, and some people have used this to make a communication pendant, but this kind of insect can only sense each other, and it can't transmit too much information, which is not very practical. Could it be that this copper crystal can transmit sounds?"

The means of communication in this world are still very backward, and short-range communication can use the communication circle on the magic badge, but this means of communication is very short, and a little longer is not effective. At present, the most reliable means of communication is the long-distance communication circle, which is very large, in fact, it is a tiny space transmission circle, which writes information on paper and transmits it to the other side through the circle.

This kind of circle is not timely, and it costs a lot, generally there is no important information will not use this means, if you want to transmit information on the way, it is more difficult, only the kind of miniature teleportation circle that can be moved can be used, but this kind of circle can transmit less content, and most of them can not be used too many times, and the number of magic crystals consumed each time is also a lot.

It's a little less practical.

There are many other means of communication such as animal messengers, but the timeliness and reliability are not high, and there is a lack of reliable and low-cost means of communication.

Jia Yi said: "I also know that this thing can only transmit a consciousness, understand the situation between each other, and if you want to transmit specific information, you can't do it, and the copper crystal can't synchronize the sound or image, although I can control the frequency of mutual vibration between the copper crystals, but this frequency is too high, it is difficult to parse it, and the farther the distance, the greater the frequency distortion, which limits the use." ”

Flower didn't quite understand what Jia Yi meant, of course he knew what frequency meant, but he didn't understand what the relationship between frequency and communication was, and he didn't feel like the two sides were on the same channel, although Flower didn't know what a channel was.

Jia Yi didn't explain in detail: "When I make it, you will understand, although the efficiency is a bit low, but the timeliness of transmitting information is much better than the general method, but it can't transmit too much information." It's just that the cost is a little too big, and you should get the telegram out when you have time, and now that electromagnetism is developed enough, it is not difficult to get the telegram out. ”

Flower heard a new term, but he couldn't understand what the telegraph was, and could the telegraph still deliver the newspaper?

The telegraph is actually simpler and less costly, but it is more susceptible to interference, if it weren't for the accidental discovery of the characteristics of copper crystal, Jia Yi would definitely give priority to the development of telegraphs, but now that this property of copper crystals has been discovered, he put the telegram down temporarily.

His invention was more for his own interests, and there was no sense of urgency, and he didn't want to get everything into it, it would be too tiring. Compared to the simple structure of the telegraph, which had appeared in the previous world, it was the copper crystal that was more interesting to him.