Most of the strange birds were killed by the thunder, and the rest fled in the wilderness, never daring to stay in the Three Kingdoms World again, but returned to the Mountain and Sea World through the spatial rift.

The crisis in Danyang County has been lifted for the time being, but the thirty miles centered on the spatial rift has been plagued by those strange birds.

There is no way to go on like this, Wang Xuan was ruthless, and prepared to build four city walls around the spatial crack, and build a city closed inward.

If he really realizes this idea, if nothing else, he can at least besiege the beasts that can't fly and aren't too powerful.

And he can also install a large number of bed crossbows on the city walls, and even if those strange birds fly over, he can give them a pot to drink.

This is a good idea, but the cost of building such a city is too great, and it is a big project.

The spatial rift was about tens of meters wide and hundreds of meters long, and it rushed diagonally into the sky at a distance of thirty or forty meters above the ground. If those alien beasts fell in the form of free fall, the place where they landed would be about 200 meters in radius.

However, when the strange beast ran over, almost all of them had an acceleration, and they fell in the form of a parabola, and the places where they could come greatly increased.

Wang Xuan calculated, his city needed to be at least a thousand meters long and eight hundred meters wide, and the four city walls added up to several thousand meters.

And if you want to block the alien beasts, the city wall can't be built too thin, otherwise it will be directly penetrated by those alien beasts. It can't be built too short, like a beast like a raccoon, it can jump twenty or thirty meters high on the spot, and the city wall that is too low is useless.

In the end, Wang Xuan calculated the manpower and material resources needed to build this city, and he didn't feel his scalp tingle.

What's even more difficult is that this kind of Xiongguan is obviously not able to be built in a short period of time, how long did it take for the Tiger Prison Pass to be built in the first place? From the Eastern Zhou Dynasty to the present, it has been more than 800 years, during which it has been repaired and strengthened several times before it has today's scale.

The city that Wang Xuan wanted to build, although the area was not as large as that of the Tiger Prison Pass, but it had to be built higher and thicker, and the difficulty could be imagined.

"Lord, the matter of building a city is not realistic at all!" Lu Su smiled bitterly and said: "Because of the arrival of strange beasts from the mountains and seas, Wanling has become the most dangerous place, we have moved most of the people away, where are there so many people to build the city?" ”

Wang Xuan scratched his head, he now misses a thing called "cement" in later generations, if there is a sufficient amount of cement and steel bars, he will take thousands of soldiers to work on the construction site, such a few city walls, it will be done quickly.

"How is cement produced? It seems to be made of limestone through a series of processes and firing. It's just that in this era, large-scale firing of cement is simply unrealistic, and if you want to crush so much limestone into powder, you don't know how much manpower and material resources will be spent. Wang Xuan smiled bitterly, but he didn't give up.

As the saying goes, a drop of water can pierce stones, and the city wall can't be built well for a while, but as long as he takes action and builds a little bit every day, he can always build it.

To this end, he dispatched another 3,000 strong armorers to build a city wall next to the spatial crack.

For such a large-scale operation, safety is important. Therefore, Wang Xuan ordered Zhang Fei and Xu Chu to take the Xuanjia elite soldiers to guard the spatial crack, and brought the two foxes over and tied them next to the spatial crack to deter ordinary alien beasts.

If there are other raccoons running over from the mountain and sea world, that's easy to do. The raccoon is a highly intelligent beast, and it knows how to rescue its kind, and it will never be indifferent to see two raccoons tied there.

Wang Xuan recognized this, so he buried a large amount of black powder there, and if there were really other foxes running over, he would keep them and send them to heaven together......

Pity those two foxes, when they met such a big demon king, they simply poured blood mold for eight lifetimes. They wanted to resist, but Hua Tuo had to pour them all kinds of strange drugs every day, so that the two foxes became soft-legged shrimps.

Wang Xuan looked at the big construction site in front of him, several stone walls were raised and extended little by little, and nothing changed, and he couldn't help but breathe a sigh of relief in his heart.

He built this Xiongguan to defend against the strange beasts that came from the mountain and sea world, if you want to give this Xiongguan a name, there is a ready-made name that is the most appropriate - Shanhaiguan!

The Shanhaiguan in later generations was called Yuguan in ancient times, and it was only in the Ming Dynasty that it had the title of "Shanhaiguan", so Wang Xuan could "borrow" it with peace of mind.

The Shanhaiguan city of the Ming Dynasty, with a circumference of about four kilometers, is connected with the Great Wall, with the city as the pass, the city is 14 meters high and 7 meters thick. The circumference and thickness of the Shanhaiguan that Wang Xuan wants to get out are about the same as those of the Shanhaiguan in the Ming Dynasty, but the height is far better than the latter, and the plan needs to build forty meters high!

Such a majestic city, even if it exhausts the manpower and material resources of Danyang and Lujiang, it cannot be completed in a short period of time.

"The spatial rift is quite stable for the time being, and it's time to use this period of stable time to expand externally." Wang Xuan called all his important civil and military generals over to discuss how to send troops to unify Yangzhou.

Yangzhou Zhishou Chun, divided into Huainan, Lujiang, Danyang, Huiji, Jian'an, Wujun, Yuzhang, Luling and other nine counties, three of which are in Jiangbei, and the other part constitutes the famous "Jiangdong Six Counties".

Wang Xuan not only wants to plot against the six counties of Jiangdong, what he wants is the entire nine counties of Yangzhou!

"Since the Yellow Turban Rebellion, the imperial court has gradually weakened, and the local counties have real power, just like princes. I want to send troops to pacify Yangzhou, I don't know what you think? Wang Xuan sat in front of the desk and stretched out his hand to lightly buckle the desk.

Lu Su, Zhang Fei and others subconsciously looked at the case, and saw a silk silk on it, densely packed with countless lines, it turned out to be a map of the entire nine counties of Yangzhou!

This kind of thing, in this era, is a strategic weapon! Before Liu Bei entered Yizhou, someone presented him with a complete map of Xishu, which directly made Liu Bei worship as a treasure, which shows the importance of it.

Lu Su came out of the crowd, and after a salute, he said: "Lord, everything must be justified, although the Son of Heaven has fallen into the control of Dong Zhuo, but the hearts of the people in the world are still towards the Han court." If you want to unify the nine counties of Yangzhou, you must find a suitable excuse, not like Sun Wentai. ”

When Sun Ce heard this, his face was as black as the bottom of a pot, but he finally endured it. Now that the rule of the Han Dynasty has not completely collapsed, Sun Jian did go too far before, first killing Jingzhou to assassinate Shi Wang Rong, and then privately sending troops to attack Danyang County, if it weren't for the Yuan family behind his back to support him, Sun Jian would have become the enemy of the enemy and was not tolerated by the world.

You must know that even if a murderer like Dong Zhuo entered Luoyang City, it was at the behest of the great general He Jin. According to the rules and regulations of the Han Dynasty, the general has the right to mobilize soldiers and horses from all over the world, so it is reasonable and legal for Dong Zhuo to become the ruler of Luoyang. Before Dong Zhuo abolished the Son of Heaven, although the ministers of the DPRK and China were dissatisfied, they could not stand up to be an enemy of Dong Zhuo.