In particular, when it was dozens of miles away from Fangcheng, the scale of the Tusi River reached its peak, and the widest part of the water surface was more than ten meters, and the depth was also several meters deep.

Let's put it this way, this is also in the northern frontier of Yandi, if it is changed to the south, I am afraid that it will already be able to pass through big ships.

However, after this Tusi River arrived in Fangcheng, it had to go around the city directly, and the terrain around Fangcheng was too high-pitched, and even how a big river arrived here, it had to be rerouted to the north.

It turns out that the terrain around this square city is very peculiar and is a typical high-pitched terrain.

You must know that the entire Yanbei County, except for the area of Yangu Town in the north, other places are all in the real sense of the word.

In addition, there is this Tusi River passing through here, which is naturally the kind of excellent farmland and pasture.

However, the city rises abruptly on the flat ground here, naturally forming a peculiar high-pitched area.

Let's put it this way, the relative height difference between this square city and the surrounding terrain is more than 100 meters, and it is very abrupt on this plain.

However, what is very peculiar is that the terrain at the top of Renfang City is very flat, and it looks like a very high platform from a distance, so it was called "Gaochengzi" in ancient times.

However, why it was finally named Fangcheng in the end has a lot to do with its peculiar terrain.

It turns out that in addition to the high-pitched terrain here, there is also a major feature, that is, the whole is very square, as if it has been artificially piled and repaired, and it is very square and very formal.

In addition, the current Fangcheng also has a major feature, that is, on the "edges" around it, there is a very complete ancient rammed earth city defense.

In this way, on top of the originally high-pitched terrain, coupled with the earthen enclosure that has been rammed again and again for I don't know how many generations in ancient times, it is even more obvious that it is towering and abrupt.

Not only that, but what is more, as early as the heyday of the Donghai Dynasty in the former dynasty, in order to strengthen the defense of the northern frontier of Yandi and prevent trouble, a solid inner city was built directly in the ancient Tuweizi.

Moreover, this is not the end, the imperial court at that time also spent a huge amount of money to recruit a large number of people, and even directly widened and deepened the Tusi River that was semi-surrounded from the north, and simply became a peripheral "moat".

At the same time, a large stone arch bridge and two so-called pontoon bridges were directly built in the three directions of due north and northeast and northwest of Fangcheng.

Earlier, all the simple pontoon bridges within at least 100 miles of the area around Fangcheng were completely demolished, and only these three official passages were retained in the entire Yanbei County.

What's more, the other three sides of Fangcheng were directly artificially excavated and processed to strengthen the overall defense.

After the Celestial Empire settled the world, the Emperor Tianwei attached great importance to the important strategic significance of this square city, and directly ordered Xiahou Zhengjin, the king of Yan, to carry out corresponding large-scale repairs.

You must know that at this time, the Wudi of the northern desert grassland in the north is increasing

Strong, but also must be prevented.

In this way, the north, northeast, and northwest directions of Fangcheng are all wide and deep Tusi River, and only three bridges can be passed normally.

After crossing the bridge, there is a large slope of almost more than 30 degrees in these three directions, and there are seven or eight hundred meters until you officially reach the first north gate of Tuweizi on the periphery of Renfang City.

Of course, in order to alleviate the daily traffic pressure of the north gate, another corner gate was opened in the corresponding northeast corner and northwest corner.

After entering from these three gates, continue to travel for seven or eight hundred meters, and then really arrive at the north gate of the official inner city of Fangcheng, of course, this section is normal flat ground.

The walls of the inner city of this side are more than nine meters high, and the thickness of the bottom is two or three meters, and it is all made of huge stones, which is extremely strong.

There are a total of four gates in the inner city, and there are no other corner gates, all of which are heavily guarded and heavily defended on weekdays.

In addition, the several gates of the outer earth enclosure are also very worth mentioning, after all, the outer earth enclosure is also the first defensive position of the people's square city.

In addition to the three gates on the north side mentioned above, there are gates on the east and west sides, and on the south side, there are three gates directly side by side, but the larger ones in the middle are smaller on the two sides.

In this way, there are a total of eight city gates in the outer earthen enclosure, after all, the peripheral platform area has a large flow of people, and it is indeed not very convenient if there are only four city gates.

Of course, there is another point, that is, the south, east and west sides of the outer city are also large slopes of more than 30 degrees, which is really extremely beneficial to the defense of the entire square city.

To put it simply, the inner city of this square city is the so-called administrative and military area, and under normal circumstances, only the official and the garrison officers and soldiers are allowed to enter and exit at will, and other ordinary people are not allowed to enter and exit at will.

Of course, from the outside of the inner city to the outer earthen enclosure, it is the living area of ordinary people, and there are all kinds of normal living areas.

You must know that this is just the Fangcheng inside is Fangzheng Ersanli Road, and the vast space outside can naturally be imagined.

Let's put it this way, as far as the current situation is concerned, the original inhabitants of this square city are as many as tens of thousands, not counting those passers-by who come and go.

As for the troop layout of Fang Cheng, under normal circumstances, Mu Xuandu personally commanded a battalion of men and horses to guard here, but there was not too much standing troops.

Of course, the current situation is very different, after all, Xiahou Zhengjin, the king of Yan, has already made corresponding arrangements.

As far as the current situation is concerned, just in this city, the three battalions of people under Mu Xuandu are all in place.

Not only that, the Yandong County General Shi Deyi and the Yanxi County General Wei Xiaotian each of their 10,000 reinforcements have also been stationed along the strategic towns on both sides of the Tusi River.

In this way, the general situation of the entire Fang City has been introduced, and with such a topography, it is no wonder that Xiahou Zhengjin, the king of Yan, would set up the second defensive front here.

Well, a general introduction to this square city

It's over, let's get back to business and continue with Ma Yuyin's secret room discussion.

Of course, at this time, Xiahou Pingzhi and Xiao Yishan finally roughly understood Ma Yuyin's overall plan.

At this moment, I only heard Ma Yuyin say in a solemn voice: "By the way, Brother Xiao, do you know why I chose you to let you evacuate with the young prince in the end?" ”

Xiao Yishan said: "Okay, third master, you don't need to say anything more, isn't it just for the big secret of our Yangu Pass." ”

Ma Yuyin said: "Yes, that's right. You know, you are the one who has not taken the old man's 'Yujin Dan' all the year round among all these insiders. ”

Xiao Yishan said: "Forget it, third master, you better stop talking." ”

Ma Yuyin said: "No, today I must tell the young prince everything in person, otherwise I am afraid that I will really have no chance in the future." ”

Xiahou Pingzhi said: "Third master, what are you talking about, maybe the development of the situation behind this is far from being as unbearable as we imagine now......

Ma Yuyin said: "Okay, you better shut up and listen to me honestly." ”

Xiahou Pingzhi said: "Okay then." ”

Ma Yuyin said: "Now, I won't hide anything anymore, anyway, you are not an outsider, young prince." To tell the truth, Brother Xiao's grandfather is actually a senior figure with a great background, he is none other than the main general of the previous dynasty. ”

Xiahou Pingzhi said: "Don't say it, this is the first time I've heard of it." ”

Ma Yuyin said: "What's more, in fact, his old man is the initiator of this underground secret passage, and it is his old man who has started this secret project decades ago. ”

Xiahou Pingzhi said: "Oh, I see. ”

Ma Yuyin said: "You must know that just this secret project, three people in the generation of the Xiao brothers' parents were unfortunately killed, and they all died tragically in accidents at key locations. ”

Xiahou Pingzhi said: "Then, when did you really know this secret, the third master. ”

Ma Yuyin said: "To tell the truth, it was after I took Brother Xiao to officially guard this room that Brother Xiao finally told me this secret. ”

Xiao Yishan said: "Since this is the case, then I will no longer hide anything." To tell the truth, in the early years, my grandfather and father and brother only completed the underground works under the Yangu Pass, and the ones between the left and right wings of the acropolis behind were personally presided over by the third master. ”

Ma Yuyin said: "Yes, that's right. Moreover, now, I am not afraid that the young prince will laugh at the old man's cruelty, in order to ensure that the secrets here will not be leaked, the old man really gave the so-called 'Yujin Dan' to my subordinates who participated in the period. ”

Xiahou Pingzhi said: "Oh, I know a little bit about this. ”

Ma Yuyin said: "You must know that this 'Yujin Dan' is the secret medicine of the old man's ancestors. As long as every once in a while, in time

Taking the next dose of medicine can really achieve the miraculous effect of strengthening the body and strengthening the foundation. ”

Speaking of this, he suddenly smiled and said coldly: "But, but as long as you don't continue to take the corresponding amount of medicine for more than half a year, then, then the consequences are really unimaginable, and it is really the so-called survival can not be death, and in the end you can only torture yourself to death." ”

Xiahou Pingzhi said: "This, how should I say this......"

Ma Yuyin said: "Okay, I understand what the young prince means." Not only that, but when the prince heard about it, he really reprimanded me severely. However, my Ma Yuyin's name of 'cold-faced judge' was not called in vain, and I really insisted on this matter in the end. ”

(End of chapter)

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