"In addition, if you run out of your personal information, you must replenish it in time. Otherwise, if I subpoena, you won't know!" Cheng Yu reminded.
If the foreign king did not send a message, then his summons would fail. And he could easily judge whether the foreign king had received the message based on whether the slip in his hand was broken.
As long as the foreign king checks the jade slip, the jade slip in his hand will also be broken. If the foreign king does not check the jade slip, the jade slip in his hand will remain intact until the foreign king checks the jade slip and then breaks it.
However, the message on this jade slip is also time-limited. If the other party does not check the jade slip for more than twelve hours, the content on the jade slip will disappear and can be used again.
"I understand!" The foreign king nodded again and quickly put the jade slip away.
This is a good thing. With this thing, he will no longer have to worry about not having enough jade slips. After he returns, he will make dozens of them for later use.
"Master, isn't it unfair that you only give such a good thing to King Wai?" Luo Keya felt a little envious when she saw King Wai put away the jade slips in excitement.
The foreign king had shown them how to use the jade slips, so she also knew that the jade slips were very practical.
And this time, if it weren't for the fact that the foreign king had this jade slip in his hand, how could the foreign king have told Cheng Yu about the situation on his side at any time, and how could the foreign king know about the situation on Cheng Yu's side?
So this is all the credit of this jade slip, and she naturally hopes to have such a good thing.
"What do you want this for?" Cheng Yu smiled.
"If only the foreign king has this thing, if the foreign king has to stay in Baiyang Waichao in the future, but we leave Baiyang Waichao with our troops, then if we don't have this jade slip, how can we report to the young master? What's our situation?" Luo Keya said.
Jade slips were the best method of communication she had ever seen, and of course she hoped to use this method to communicate.
"That's right!" Cheng Yu thought for a moment, and it seemed to be the case, and then said, "Well, I'll prepare a set of jade slips for each of you chief elders. Is that okay?"
"Really?" Luo Keya was overjoyed. It would be great if each of their chief elders could have a set of jade slips.
"In order to ensure the concealment of the contents of these jade slips, there are only upper and lower jade slips for communication, and the situation is transmitted one-to-one.
Therefore, these jade slips I give you, except for the communication between us, must not let a third person have the same jade slips, otherwise the communication between us will be seen by this third person. "Cheng Yu was so happy to see Luo Keya, but he must remind her carefully.
This is a very important key. The communication formations of each set of Jade Slips are different, but these communication formations are very easy to change, so you can make a new set of Jade Slips with slight changes. Such changes Only he knows it, so it won't overlap with other people's jade slips.
"Please rest assured, young master, I will definitely give them good instructions when the time comes." Luo Keya said happily.
"Anyway, we have to prepare so many sets, so I'll just give you a big gift!" Cheng Yu thought for a while and thought it might be a good thing to give them something, so he said.
"What kind of gift?" Both King Wai and Luo Keya were looking forward to it!
"I have just said that under normal circumstances, these jade slips are divided into upper and lower slips for one-to-one delivery for the sake of confidentiality.
However, this is only one kind of jade slip, and there are some more complex jade slips. "Cheng Yu said.
"Young master, what do you mean, are there still many-to-many jade slips?" The foreign king's eyes lit up and he said.
"Absolutely, it's just one pair of jade slips!" Cheng Yu said.
"One to many? Master, please elaborate more!" said the foreign king.
"That's it. I'll give you this set of jade slips. You can use them to communicate with the defenders at the borders of Baiyang Wai." Cheng Yu said.
"Send a message to the border defenders? But our Baiyang Wai Dynasty has a total of nine border towns. Can the young master's special set of jade slips of messages be used to send messages one to nine?" the foreign king asked curiously.
"If that's the case, it's enough for the outer king to hold the upper slip and the other nine border towns to hold the lower slip!" Luo Keya said.
"This is indeed possible. If all nine of them hold the slips, you can all see the messages they send you.
However, because the jade slips in their hands are all the same, if you give an order to one of the cities, the other eight border cities will also see it.
It doesn't matter if it's not some important information, but what if this information can only be known to one city? Wouldn't it be a big deal? "Cheng Yu explained.
"What do you mean, young master, can your special set of jade slips be used to send a message to one of the border towns alone?" the foreign king asked expectantly.
"Yes, that's why I gave you this set of jade slips. If anyone from the border town enters Baiyang Waichao in the future, you can definitely get the latest news at the first time. I think I will give you this set of jade slips." It’s all good for me!” Cheng Yu said.
"If there really is such a jade slip, it would be great!" The foreign king said with joy.
Just like when Xun Te sent them into Baiyang Waichao before, his messenger rushed to Baiyang Waichao as quickly as possible.
But even so, it was delayed for half a month. After he received the news, Special Agent Xun and the others arrived half a month later.
If there are no special circumstances, this kind of summons would be fine.
But if the opponent leads a large army to attack, then this little time may not be of much use.
Moreover, using a messenger to send a message is also more risky. Sometimes the messenger will be discovered, and if the summons fails, the consequences will be even more disastrous.
If every border town now has its own different message slips, then there is no need to worry about any delay in any message.
More importantly, if he had any instructions, he could pass them on to the generals defending the city in the fastest possible way.
For example, if a foreign enemy attacks, which border town he wants needs to be sealed off immediately, if he uses a messenger, the news will come back and forth, and the border town closest to Baiyang Waichao will also waste a month.
When this order was sent to the border city, it had no effect. Maybe their city could no longer be defended.
But using such jade slips, he could not only immediately know that foreign enemies were attacking the border town, but he could also immediately order the guards to seal the city without any delay.
"But this set of jade slips is a bit troublesome. I need some time to set up the formation, so you may have to stay here with me for a few days!" Cheng Yu said.