Hermione's idea was great, and Elwyn felt that it could be further improved to make the function of these "gold coins" more perfect.
Using gold coins as a communication tool was to make it easier to hide and not be discovered by others.
But if it only had the function of "changing the numbers on it", it was too simple!
After Elwyn's improvement, only the person who wore it could enter the House of Granted Wishes.
Now, everyone could not only use them to communicate with each other, but also sense the location of the person as long as one party was willing.
Moreover, each of these fake galleons was unique, which meant that only they could use it.
If they fell into the hands of others, the magic on them would be ineffective, increasing the confidentiality.
After the latest training session, Hermione distributed the gold coins that she and Elwyn made to everyone.
When Ron saw the gold coins in the basket, he suddenly became very excited, thinking that he was really going to give out gold coins.
"Wait, Ron, don't just take it. These gold coins have a number on them, corresponding to each person."
"Number?" Ron said blankly, "What is that? Isn't this a gold coin? Isn't it real? "
"Of course it's not real!" Hermione said angrily, "Why don't you think about why I'm giving you money!"
"These galleons are our communication tools in the future." Elwyn explained, "I left a magic inside so that it can only be used by us. The order of the number is the order of your signature on the list, corresponding to each other. I'm the first, Hermione is the second, then Fred, George, Harry, Ron, Corin..."
A few minutes later, everyone received their own gold coins, holding them in their hands and looking at them repeatedly.
"What's the use of this thing? It looks like a real gold coin. "
"Do you see the number on the edge of the coin?" Hermione held up a coin for everyone to see. The coin glowed yellow under the light of the torch. "On the real Garen, this is just a number, representing the sprite who made this coin. However, the number on these fake coins will change, showing the time of the next meeting. When you change the time, the coin heats up. You can feel it if you keep it in your pocket. Each of us will take one. When Elwyn confirms the time of the next meeting, he will change the number on his coin. Because I have cast a transformation spell, as long as his coin changes, everyone's coin will also change. "
After Hermione finished speaking, everyone was silent. She looked at the faces that were looking up at her and felt a little embarrassed.
"What's wrong with you guys? I thought it was a good idea!" "I've discussed it with Elwyn, and we both feel that we need such a communication device. I think, even if Umrich wanted to go through our pockets, it wouldn't be suspicious if she brought Garen along, right? Also, Elwyn made some changes to it. But, alright, if you don't want to use it … "
"You know how to cast a transformation spell?" Terry Bute asked.
"Yes," Hermione said.
"But that's, that's N.E.W.S level!" He said weakly.
"Oh!" Hermione understood what was going on. She tried to look humble, "Yes, I think so!"
"Why aren't you in Ravenclaw?" He looked at Hermione in surprise and asked, "You have such a brain. I've never seen a student like you. You can use such a high-level spell as a fifth-grader. Not many people in the school can do it."
"The Sorting Hat seriously considered putting me in Ravenclaw." Hermione said casually, "But in the end, they decided to put Gryffindor. Also, I think Elwyn is much smarter than me. He made more improvements to Garen."
She turned around and walked to Elwyn's side. While no one was looking, she shook her fist at Elwyn.
Then, Hermione pushed Elwyn out of the room so that he could secretly laugh at her.
"In order to increase security, I cast a spell at the door of the room. Only the members with this Garen can pass through. It turned into a D.A. symbol," Elwyn said, "Besides that, you can also look at the back of the coin. The number on it can also be changed. You just need to adjust it like this …"
Under everyone's gaze, Elwyn changed the number to three, which was Fred's number.
As he moved, the back of the coin blurred. The patterns and patterns on it disappeared and turned into a mirror-like object. Fred's face appeared on it. He was staring at Elwyn in the coin with his eyes wide open.
"Oh my god, how did you do it?!"
"I was inspired by the double-sided mirror. This way, everyone can see each other and use this coin to communicate." Elwyn said, "But this function is still in testing. It won't work if you are too far away. Also, it can only be one-on-one."
There was a moment of silence. Everyone looked at Elwyn and was shocked speechless.
If Hermione's transformation incantation was already amazing and incredible, then Elwyn's improvement was beyond their imagination. They didn't even know how Elwyn did it …
This was not as simple as a transformation incantation. The difficulty was definitely beyond the level of knowledge that could be learned in school.
If one had relevant knowledge, they would know how precious the double-sided mirror was.
But for Elwyn, it was really nothing. He didn't use any magic incantation. It was alchemy.
The double-sided mirror was originally an alchemy product. Elwyn just made a lot of round mirrors the size of gold coins. Then, he put them on Garen and cast a concealment incantation. When needed, they would come out.
Although it was not very troublesome for Elwyn, the others were shocked speechless.
Everyone was already used to Elwyn's powerful strength. Every now and then, he would do something that they thought was a miracle.
After everyone was amazed, they began to look down at the coin in their hands. This was a good thing.
In fact, Elwyn still had many functions that he wanted to integrate into Garen. Just like Muggle's phone, he didn't succeed in the end.
The magic world was lagging behind in this area. Muggle's electronic communication equipment was already developing rapidly.
In a few years, long-distance communication, video, and interaction functions would be developed. Muggle could use the phone to do many things.
Elwyn didn't know when the time came. Would the wizards be equipped with a computer and a phone like Muggle and spend most of their time on it? Would they gradually reduce the direct communication between people? Would they cancel the old tradition of owl mail? Or would they maintain the status quo and be left behind by Muggle?
In terms of the integration of magic and technology, the speed of the magic world was definitely not fast. But it was not unacceptable for the wizards.
As long as someone introduced it, people were willing to try new things, such as magic radio stations, some professional mechanical equipment, and so on.
Many wizards also paid attention to the products produced by Muggle in Elwyn's shop in Diagon Alley.
But most of them watched more and bought less. Even if they bought, they bought it secretly. They didn't want people to think that they were strange.
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