Datang: My father is the head bodyguard

Su Lie, Xue Rengui and his entourage returned to Chang'an City without any danger. Apart from encountering two groups of bandits numbering over a hundred people, they had a safe journey.

Su Lie and Xue Rengui parted ways. Su Lie went to Zhuangzishang and Guogong Mansion to find Su Quan and Su's delivery machine, while Xue Rengui went to the palace according to the established plan.

The defenders outside Chengtian Gate did not know Xue Rengui's identity and stopped him. After Xue Rengui showed Li Er's waistband to Yuchi Baoqi, the sergeant at Chengtianmen still refused to let him go and turned around to report inside.

"Report! There is a military force outside who claims to be Xue Rengui, the pro-commandant of the Tianwei Army. He is holding the badge given by His Majesty to the prince-in-law and is going to enter the palace." The soldier came to Jinwu Guard's quarters and reported to Qin Qiong.

"Bring him in, and I will take him into the palace myself." Qin Qiong put down the tea in her hand. "Forget it, I'll go pick him up, and you can continue to stand guard."

Xue Rengui knows Qin Qiong, but the second brother Qin, who is unparalleled in loyalty and righteousness, does not know him. Seeing Qin Qiong walking towards him, Xue Rengui knelt down on one knee, made a fist with his right hand and hammered his left chest to perform a military salute of the Mighty Army.

"The newly promoted Songzhou captain Xue Rengui was sent by the governor to deliver something important to your majesty in the palace." Xue Rengui said loudly.

Qin Qiong helped him up, and after asking the soldiers, he learned that they had already searched him. Except for a few boxes containing strange machinery and a stick in the cloth bag on his back, there was nothing unusual.

"Come with me to the Ganlu Palace to see His Majesty. His Majesty recently ordered that I should go with you on all urgent military situations and news about the Governor of Songzhou." Qin Qiong explained.

Xue Rengui nodded and asked several Tianwei Army sergeants to move the boxes and follow him.

When they arrived at the Manna Hall, Wang De saw Qin Qiong coming with people. He already knew in his heart that there must be something big and important to see His Majesty, so he quickly entered the Manna Hall to report.

"Your Majesty, Duke Yi Guo has brought someone here. Judging from the armor style, they belong to the Tianwei Army." Wang De spoke hurriedly as soon as he entered the Manna Hall.

Li Shimin also put down the memorial in his hand and walked quickly down the imperial desk. As soon as Li Shimin walked into the hall, Xue Rengui directed the sergeants to pile the boxes in the hall.

"Your Majesty, I have brought you here. Please leave." Qin Qiong knew that she couldn't hear what was going on here, so it was better to leave early to avoid suspicion.

Li Shimin waved his hand to let him leave, and in a blink of an eye he looked towards the box. Seeing nothing, he looked at Xue Rengui, who was leading the team.

"The last general pays homage to Your Majesty. The last general is a former sergeant of the fifth column of the Tianwei Army. Thanks to the appreciation of the governor, he has been promoted to the rank of Songzhou Military Academy Lieutenant. This time he came back from Songzhou to be responsible for escorting the machinery made by the governor." Xue Rengui finished speaking. Then he ordered the sergeant to go out of Manlu Palace to take over the guard position.

"Mechanical? What kind of machine? That boy has tinkered with something good again, otherwise I wouldn't have let you go to such trouble to transport it back." Li Shimin was a little confused.

"Your Majesty! No one can see this thing except Your Majesty and your ministers. Your Majesty, please step aside." Xue Rengui knelt down on one knee and clasped his fists.

Li Shimin waved his hand, and Wang De led a group of palace maids and eunuchs to leave the Manlu Palace. The shadow guards hiding in the dark also left their positions. Upon seeing this, Xue Rengui opened the box and took out the machinery inside.

"Your Majesty, these things are a radio transmitter, a receiver, and a decoder. With these things, military information can be transmitted instantly across thousands of mountains and rivers!" Xue Rengui introduced to Li Er.

"That boy's stuff must be powerful, but I don't believe it no matter how you say it. Isn't that a method of immortality?" Li Er stared at those strange machines, trying to find out some tricks.

Seeing that he didn't believe it, Xue Rengui said: "Your Majesty, you will know if it is true or not. Please bear in mind my assembly and operation steps. The transmitter and decoder can only be left with your Majesty for personal use. This receiver can be guarded by a dedicated person." However, the received information is messy, and a decoding machine is needed to see the original information to keep it confidential."

Li Er nodded and stopped talking, carefully studying Xue Rengui's methods and steps of assembling the machine. Li Shimin also asked Xue Rengui some assembly questions from time to time, and also tried it himself.

"Your Majesty, these machines have been assembled. The two here are lead-acid batteries. Insert this plug into several machines. The red indicator light indicates that the power is insufficient, and the green indicator light indicates that the connection is successful and the power is sufficient. If the indicator light does not light up, it means there is no power. When the battery is charged, Zhuangzi will send a replacement battery." Xue Rengui pointed to the rows of indicator lights and taught Li Shimin carefully.

After Li Shimin had learned all the operations, he asked: "You mean I can send a message to that brat now?"

Before Xue Rengui opened his mouth, he saw the indicator light on the receiving end of the telegraph machine flashing regularly. He quickly put the white paper into the machine and pressed the receive button.

Li Shimin looked at the series of disordered numbers and symbols printed on the original white paper, and took it over. "Is this the message he sent me?"

"Your Majesty, didn't the general say it before? These are all encrypted and can only be translated into understandable words through a decoding machine." I can give Li Shimin a good beating.

After hearing this, Li Er recalled the operation that Xue Rengui taught him just now, stuffed the garbled white paper into the decoding machine, and after pressing the decoding button, a series of spaced numbers finally came out.

"Your Majesty, this is the message you want to convey, but this still won't work. You have to look at the code book to get the final message." Xue Rengui placed the code book on the table in front of Li Shimin.

"Yes, with such a tight defense, the information will not be leaked. And you said before that my station is No. 01, right? How many more stations are there in total?" Li Er took the code book and compared it and started to decode. Still asking Xue Rengui questions.

"Reporting to your majesty, the governor's phone number is 00, your majesty is 01, Her Royal Highness Princess Changle is 02, Mrs. Yipingaoming is 03, and the man from Lantian County is 05. The young master said four is not nice, so there is no phone number four." Xue Rengui turned the machine on The numbers were reported to Li Shimin one by one.

At this time, Li Shimin was translating the message sent back by machine number 00 according to the code book. The more he translated, the more frightened he became, and the more he translated, the happier he became.

"01,01. I am 00, I am 00. The Tubo coup, Ludongzan has taken control of Tubo, Songtsen Gampo escaped and was captured by our army and is now under house arrest in Songzhou City."

Xue Rengui looked at the message translated by Li Shimin and said to himself: "The governor is still awesome. Songtsen Gampo was not captured when we set off. How could he be captured after we only left for a few days?"

Li Shimin was a little speechless: "Is this something awesome? The king of a country was captured like this? And this machine can really transmit sounds thousands of miles away?"