Han Qi finally left the fortress in satisfaction, although the defense of the fortress is very strong, but Han Qi still has a thousand things to deal with, even if in Baozhou now, most of the things are handled by Ouyang Xiu, but he still needs to coordinate the forbidden army, and some things in the Privy Council, although these things are not much, it is not suitable to put them in the fortress.

The fortress is an absolutely safe fortress, even in ordinary times, it will not open his door, and any messenger who arrives needs to be notified in advance, which is too troublesome for Han Qi, who has a lot of opportunities.

After Han Qi agreed, Zhao Xin knew that this time the matter was over, as long as Zhao Xin's identity died, then he would be able to appear in various parts of the Northern Song Dynasty openly.

Before the crossing, it was a common thing, but after the crossing, based on his identity, he couldn't do it at all.

Truth be told, if he had the freedom, he would have been able to make more changes now, and maybe even the reform of steelmaking would have been done.

Whether it is a feudal society or a modern society, steel is always a foundation, tens of thousands of tons of steel in the Northern Song Dynasty have made it possible to resist the attack of Western Xia and Liao without horses, if this steel is increased dozens of times, hundreds of times, coupled with the terrible projection ability of the longbow, what will become of the Northern Song Dynasty?

Not yet, security is the first point, Zhao Xin can only stay in the fortress and enjoy the treatment of being protected, however, he believes that this will not be long.

Of course, Zhao Xin is not passive to do nothing, and now he has decided the direction, maybe there is no way to carry out large-scale research such as steel and ships, but some small-scale research, for example, sextant, for example, the use of some small spinnakers, these are some sub-projects that are crucial to navigation, can be done.

The sextant can be said to be the beginning of the age of sailing, before the proper measuring tools, the sea ship can be led by the navigator, along the coastline, the slightest storm, or the slightest accident, will be lost.

For early navigation, trek represents this one result, that is, death, compared to the land, the sea is infinitely vast, and there is no other supply, there are a lot of wind waves, reefs, after entering unfamiliar territory, after trekking, the result is terrible, lucky, drifting to an uninhabited or manned island, bad luck, can only sink to the bottom of the sea.

However, with the sextant, the safety of navigation has greatly increased, the sextant is so high, in fact, it is very simple, that is, the principle of reflection, the angle of incidence of light and the angle of reflection are the same, with the help of the sea level and the angle between the sun or other celestial bodies, used to measure the position.

The simplest sextant, the error is still a bit large, when the chart, islands, and some other key points, measured and recorded, it is much easier, with the help of some target buildings and celestial bodies, especially the stars in the sky in different seasons, with the help of the approximate relationship between them, and finally achieve accurate measurement.

In fact, from the emergence of the primary sextant to the 21st century, the more accurate sextant is basically the same, but the software has changed a lot.

There is no way to make glass products for the time being, but Zhao Xin's current funds have allowed him to obtain a large and very pure crystal, and use the method of silver plating to obtain simple lenses, which is very expensive, but it cannot be compared with the applicability of the sextant at all, but without a large number of people and a large amount of data support, this process is quite slow.

Han Qi's movements were very fast, and he quickly did a series of necessary work, preparing some documents and the folds to be sent to Bianliang.

In fact, if it weren't for Zhao Xin's request, in the last few days, a letter would have been sent to Beijing, and even the general content had been written by various staff members under the leadership of Han Qi, which was just a logical trip for Zhao Xin's people.

This is just a routine report, for Han Qi, it is just a short letter, and a small box is put down, but it is Zhao Xin's letter, because it is necessary to write in detail the reasons for the incident, otherwise it will not be possible to convince Renzong at all, and it will be more detailed, almost seven or eight thousand words, and describe some experiences and thoughts in detail, so as to ensure that after Renzong reads it, he will not be angry and will agree with his ideas.

After getting Han Qi's notice, Zhao Xin hesitated slightly, the four people, including Sun Ji, in fact, each of them were qualified to go to Bianliang, but the most suitable ones were Xue Yu and Sun Ji.

Needless to say, Sun Ji is the strongest among everyone, and to put it bluntly, whether it is in archery or other aspects, he is far superior to others, but Sun Ji is better at protection, to a certain extent, before Zhao Xin's identity has not been shaken off, to a certain extent, Sun Ji's protection is still needed.

Then, among the remaining three people, the choice is Xue Yu, on the one hand, Xue Yu's strength is indeed a little higher than the others, and in the gallop of the fast horse, the quality and eyes of the archers can still help him.

Even now, if you don't worry about someone attacking him again, after such a big thing as the Baozhou Mutiny, it is almost impossible for the people behind you to continue to attack him, but they are not afraid of 10,000 in case, in case they are funny, or in other words, they are dissatisfied with the affairs of Miaojiazhuang and attack Xue Yu, it is not impossible.

Xue Yu walked with Han Qi, as well as Zhao Xin's handwritten letter, and went out of the military's channels, and he could get to the capital in two days at most, Zhao Xin believed that Renzong would make a correct judgment.

800 li expedited, you can use the post station to change horses, of course, here in Baozhou, you can only be in the daytime, that is, near Gyeonggi, you can do it at night, but the city gate has been closed, 800 li expedited, unless it is an emergency military situation, otherwise, it is not allowed to open the door.

Zhao Xin is not in a hurry, as long as he arrives within the time, a few months have passed, and he still cares about such a day or two.

When Xue Yu was rushing towards the capital at a speed of 800 miles with the letter, Bianliang City, the imperial capital of the Northern Song Dynasty, was calm.

The Baozhou Mutiny was too far away from Bianliang, even in Baozhou City, the hundreds of thousands of casualties that had been caused were something else that happened to the peaceful Bianliang.

However, there is a major event recently, which was proposed in Western Xia, and passed more than a year of peace talks, and finally the Qingli peace talks that have been gradually determined have come to the time of signing, from the fifth year of Jingyou, Yuan Hao broke away from the Northern Song Dynasty and launched the war between the Northern Song Dynasty and Western Xia, which is about to end.

In the eyes of most Song people, this is a peace negotiation similar to the Yuanyuan Alliance, as long as this peace negotiation is established, and the two surrounding powers have entered a peaceful area, which is a good thing for the Northern Song Dynasty.

The people, when they were rejoicing for this, in the palace of the Northern Song Dynasty, Renzong's mood had not been very good.

During this time, the atmosphere of the entire palace was a little better, Renzong still didn't have much smile, at least it wasn't an unprovoked attack, after all, Zhao Xin was still alive, but the fright it brought to him still had to be dealt with.

Since he is alive, he has to return to the palace, the palace is not clean for him, in the entire palace, many people have dealt with it, and the next one is either very deeply hidden, or there is nothing to do, Renzong cannot completely clean up the palace, fortunately, the big threat has been dealt with.

All this peace was changed by Xue Yu's arrival.

It took Xue Yu two days to rush to Bianliang, first through the Privy Council, to send Han Qi's recital, and then returned to Banzhi.

For others, the palace is a forbidden place, and it is impossible for idle people to enter the palace, even if they are slaughtered, it is impossible to enter the palace without being informed.

Ban Zhi is different, the place where he originally worked was in the palace, and when he returned to the palace, he was just going home.

He didn't even need to report it, he went directly to the Minister of the Interior to cancel the leave, he went to protect Zhao Xin, he asked for leave, and now he came back just right, and then he entered the palace, and through a certain channel, he notified Renzong's internal supervisor.

Even Ban Zhi has rules, he is more on the court to protect, he can see Renzong, but it is impossible to get close to talk, usually at night, he also has to take the turn, and he is on duty outside the palace where he can take his turn.

Zhao Xin asked Xue Yu to use Han Qi's channel to enter Bianliang, in order to save time, he may not have a way to meet him directly, I believe that Renzong will definitely see him when he hears Zhao Xin's news.

Xue Yu is a straight class, Renzong is quite familiar with it, and he also brought news of Zhao Xin, before Sun Ji sent the information through Han Qi's channel, because of the unsafe relationship, what he said was very simple, just to inform Renzong that Zhao Xin was still alive. But the rest of the story is gone

Now that Xue Yu has arrived at his side, Renzong is very happy and asks in detail, the whole process, including the canal and what happened after arriving in Baozhou.

Xue Yu didn't dare to stay longer, but simply explained that after the canal, Renzong listened very seriously, and asked from time to time, and then asked, "So, what are you doing this time, do you want to deliver a letter?" ”

Xue Yu knew the general content of the letter, of course he knew that at this time, if he didn't leave, maybe he would usher in Renzong's anger, excuse himself with some methods, and then leave directly

Renzong learned some news about Zhao Xin from Xue Yu, and he was in a good mood, in this case, Xue Yu didn't need to go back immediately, and it was normal to go home to have a look.

Xue Yu was in a cold sweat, and hurriedly came out, it was easy to see the emperor, but now he didn't dare to stay at all, he bowed down and retreated directly, watching Xue Yu leave, Renzong shook his head and opened the letter

However, after dozens of breaths, Renzong's face immediately changed, and he slapped it on the table hard, saying, "No, absolutely not"