Li An took a few steps back and didn't enter the room, but the situation in the room had been roughly seen, and the overall feeling was okay, the smell was a little bigger, but as long as it was slightly ventilated, it could still live, especially for a rough person like a guard, it was nothing at all.

"Guest officer, this house has not been inhabited for a long time, and the downstairs happens to be a firewood room, so the smell is naturally bigger, but as long as the doors and windows are opened for a while, the smell is not so big.

The shopkeeper said.

Li An nodded and said, "Okay! This is it, all three houses are needed, all the doors and windows are opened, all are opened. ”

After a glance just now, Li An decided to rent this place, because this location is too good, for monitoring the residence of the two little ladies, this is the best location, and this location is in the innermost part of the entire hotel, and there is a certain interval from the rest of the location, downstairs is also a firewood room that few people pass by, so as to avoid disturbing other people when monitoring, thus causing unnecessary trouble.

"Eh, okay, guest officer, wait a minute, it'll be fine right away."

The shopkeeper happily answered, and ran to open all the doors and windows of the three houses, and finally handed over the keys to the three houses to Li An.

Li An was not in a hurry to enter the room, just waited outside, and it was not too late to go in to take a closer look at the situation after the smell had faded, and asked the guards to go back and mobilize more people to come over, and it must be in civilian clothes, so as not to expose the target, which would be troublesome.

After waiting for a moment or so, the smell in the room was no longer so unpleasant, Ang Lee walked into one of the houses and went straight to the window in the back.

Standing next to the window, you can clearly see the location of the other street, but the location is still a little too short, you can only see part of the street, you need to climb from the window to the roof, and then you can see more of it.

Li An looked carefully, this position is very hidden, quietly climb up to the roof from the window, and no one will be noticed, as long as the movement is smaller, there will be no problems.

"Bring me the stool, I'll go up and see what's going on."

Li An stood at the window and said to Li Hanlu.

"Okay, I'm going up too."

Li Hanlu brought a stool and stood up first, ready to climb onto the roof, and then pulled Li An up.

"Madam, I'll go first!"

Li An said.

"Why, don't believe me, I'll go first."

Li Hanlu smiled slightly, and climbed up quickly.

"Alright, give me your hand."

Li An understood, took Li Hanlu's hand and went up, the inclination of the roof is not very large, it is not dangerous to stand on it at all, however, the tiles under the feet do not seem to be very strong, you have to step on it gently, if you use too much force, it is easy to step on the tiles, so it is more troublesome, and it is not good to let the house leak.

"Come, just sit down."

Li An sat lightly on the tiles and looked at the street next door, at such a distance, Li An could see almost half of the street, and the people on the street, as long as they looked this way, they could also see Li An and the two, but under normal circumstances, passers-by were very busy, how could they have time to look this way, at least, none of the people Li An saw looked at the roof.

"Husband, we sit here, we can see the people on the street, but the people on the street can also see us, although no one seems to be looking at us now, but we will always find it, occasionally there are people on the roof, if there are people on the roof all the time, wouldn't it be suspicious."

Li Hanlu opened his mouth and said.

Li An nodded and said: "What Madam said makes sense, but if they can't see us, won't this problem be solved perfectly, at such a distance, we can use binoculars to see everyone's face on the street, but the people on the street can only see people on the roof, and they can't see it very clearly, and at the same time, if we make some disguises, then they won't see anything, and they won't pay attention when they see it, they may think that the roof is like this." ”

"Oh, is the husband talking about the invisibility cloak? What does it look like, I haven't seen it yet? ”

Li Hanlu asked curiously.

Li An smiled and said: "It's just some rags, nothing to look at, but the rags have to be the same as the tiles, so that people can sit on the tiles and merge with the tiles, and they can't be seen from a distance, so they can achieve stealth." ”

"Oh, that's right! Do you want to wrap rags on your face too? ”

Li Hanlu continued to ask.

Li An nodded and said, this is natural, the face is the most important, but instead of wrapping the cloth strips, it is smeared on the face with paint, and the color of the tiles is also smeared, so that the face cannot be seen from a distance.

"Are the paints and invisibility cloaks ready-made, or do they need to be ready-made?"

Li Hanlu asked.

Li An replied with a smile: "For the best effect, it is naturally the best freshly made, however, it will be a waste of time, it is better to use the clothes brought, and then see if the color can be camouflaged, just buy some fabric with the same color as the tile and make up for it, and it can be done in a few hours." ”

Li Hanlu nodded as if understanding, then looked at Li An, and said: "It's good to monitor during the day, but after dark, the opposite street should not be able to see clearly, so how to monitor?" ”

"That's a problem, but even at night, if you use a telescope, you can still see clearly, maybe you can't see people's faces clearly, whether you can see people's faces clearly, just try it, there's no better way now, isn't it?"

Li An said helplessly, in order not to startle the snake, Li An can only adopt the strategy of secretly surveillance, and since it is a secret surveillance, he feels that he can't leak the slightest bit of stalk, if someone finds out, then all the efforts will be in vain.

After a while, a dozen soldiers in civilian clothes arrived at the inn, and they were living in three separate houses, so that they could be completely filled, and it appeared that they were indeed normal to live in, and not rented for some other purpose.

Li An took out a tile and said: "According to the color of the tile, you go to the shops in the territory to buy suitable cloth, and then make a few sets of camouflage clothes, after you are done, you can go to the roof to monitor, remember, you must be careful, don't let anyone find out." ”

"Don't worry, Li Shilang, we will be careful."

Several guards said.

After explaining a few guards, Li An and Li Hanlu left, and when they left, Li Hanlu also took a look at the camouflage clothes and thought it was quite interesting.

I can't find many interesting things in the city, Xiazhou City is still too small, there are only a few streets, and the difference between the capital is too far, Li An thinks it is more interesting to go outside the city to see the scenery.

Helian Bobo's cemetery, as well as the Han Dynasty's Shiben Ancient City have been visited, there are no too good places of interest near Xiazhou City, if you want to visit the scenic spots, you need to travel more than dozens of miles to see some meaningful attractions.

For example, in Changze County, one hundred and twenty miles in the southwest, there are the ancient city of Xixi, Baijingshu, and Huluo Salt Pond, and there are the Great Wall ruins of the Qin Dynasty around Dejing County, which is eighty miles northeast, and Ningshuo County, one hundred and twenty miles to the southeast, there are the Great Wall ruins of Helan Mountain and the Qin Dynasty.

These three county towns are about 100 miles away from the capital of Xiazhou City, which is really not a very close distance, and the scenic spots in each county are not on the edge of the county seat, and some have to continue to travel dozens of miles to arrive.

However, since I have been here, I always feel that I am too sorry not to see it, and the attractions of the three counties must be visited at least once.

Dejing County is the closest to Xiazhou City, only eighty miles away, and the signature attraction of Dejing County, the site of the Great Wall of the Great Qin Dynasty is located on Erli Road west of the county, which can be said to be very close to the city, so Li An decided to go to the ruins of the Great Wall of Qin first to have a look and see what the Great Wall of Qin looked like now.

In addition, after seeing the ruins of the Great Wall of Qin, Li An did not plan to return directly, but chose to go to the ancient white city north of Qiwu Mountain, which was also called Qiwu City before, and later changed its name to Gubai City, which is also a very historical ruins of the ancient city.

However, before leaving, Li An had to take a good look at Xiazhou City, because this city, which was already a little dilapidated, was the once famous Huxia Tongwan City, which was a Hongda city established by Helian Bobo with 100,000 people.

It's just that with the change of the times, even the rock-solid Tongwan City can not withstand the long-term wind and sun, the city is no longer as solid and grand as when it was built, after the collapse of part of the city wall, the standard of repair is much worse than the standard when it was built, so the Xiazhou City at this time has been weakened too much, and it cannot be compared with the Tongwan City when it was first built, after all, the later rulers could not spend too much manpower and energy in order to maintain this city that was not the capital.

The name of this city has been revised many times, when it was first built, Helian Bobo had the ambition of unifying the world and ruling all nations, so it was named Tongwan City, and later Hu Xia was destroyed, the Northern Wei Dynasty was naturally reluctant to demolish such a good city, but it had to be changed to name it, so it was called Tongwan Town, but later I felt that it was still not appropriate, how could I call the name that others had given, so it was changed to Xiazhou, after all, this was once the territory of the Hu Xia Empire, and it was most appropriate to change the name to Xiazhou, This could appease the local people and nobles and make them better subordinate to the Northern Wei Dynasty.

During the Sui Dynasty, Xiazhou was changed to Shuofang County, and after the Tang Dynasty, it was changed back to Xiazhou again, and it has been used until now.

However, according to historical records, when it came to the Great Song Dynasty, because the rebellious Western Xia often harassed the Northern Song Dynasty based on Xiazhou City, Song Zhenzong was furious and ordered the complete destruction of Tongwan City and the relocation of all the residents in the city.

When the Huxia Empire established Tongwan City, the scenery around Tongwan City was very beautiful, which can be described as abundant water and plants, but since then, due to changes in the environment, Tongwan City has gradually become a desert here, which makes people sigh.

In the era of the Tang Dynasty, the environment here is okay, but the surrounding scenery has not become so good, at least, the desert has begun to spread to the city, the original good scenery has actually seriously changed, if Helian Bobo is still alive, he will also sigh.

After all, if it were not for the large-scale felling of forests and large-scale wars, the local vegetation would not be destroyed on a large scale, and the desertification would not have become so rapid, and the environment of Xiazhou City would not have deteriorated so rapidly.

Fortunately, the Wuding River has not been cut off yet, otherwise, Xiazhou City will be completely finished, and this place will completely become a desert.

The streets in the city are nothing to look at, and the difference between them and other state cities is not very big, the tall and majestic palace has long been abandoned, this is not the capital, naturally the existence of the palace cannot be allowed, the only valuable existence is the tall city wall with strong defensive power, this is naturally no one willing to demolish.

What Li An and Li Hanlu are going to visit is the city wall of Xiazhou City, they have been here for so long, except for a glance when they entered the city, they really haven't looked at it carefully.

Later generations said that the city wall of Tongwan City is very hard, and the hard one can be used as a whetstone, although it sounds a bit exaggerated, but it also reflects that Tongwan City is indeed very strong, much stronger than the general city wall.

But after all, this strong city wall is made of loess, and after years of exposure to the sun and rain, no matter how solid the soil is, it can't bear it, and the solidity is afraid that it will be greatly reduced, and even if it is a hard stone, it is difficult to withstand the test of the sun and rain.

In addition, all the cities in the TV series in later generations are almost all made of stones and city bricks, but this is obviously not in line with the actual situation, in ancient times, most of the city walls were made of loess, especially in the Loess Plateau, after all, the demand for building materials for the city wall is too high, if all are built with stones, the amount of stones needed is too large, and the cost of construction is too high, if there is a stone mountain nearby, it doesn't matter, but if there is no stone mountain nearby, The cost of transporting stones from great distances is huge, and even a powerful empire cannot afford to consume them.

In order to save costs and shorten the construction period, it is necessary to adopt the method of using local materials to build the city wall, which is the only feasible method, and it is also the most convenient and cheapest way.

However, in order to make the city look more powerful and domineering, some rulers will choose to build a thin layer of stone walls on the outer surface of the city wall, which can also be made of city bricks, so that the whole city wall looks more powerful and will give people a sense of indestructibility.