After everyone had a quick breakfast, they walked under the city wall and waited for Qianhu and the others to come and arrange.

Taking advantage of this time, Zhao Gao quickly opened the system panel to upgrade his character level once a day.

"The character level has been upgraded successfully!"

"Consumes 475850 experience points"

"Current character level: 12"

"All attribute growth plus one"

"Extra income from talent, growth of all attributes: 0.5"

"Hoo~" Zhao Gao took a deep breath after enduring the refreshment after the upgrade.

But Zhao Gao's movement reminded several people of Zhao Gao's situation last night, and they all looked at him in unison.

Zhao Gao: ? ? ?

"Look at me? Do I have something on my face, or I haven't washed it?" Zhao Gao touched himself suspiciously, his face becoming more and more handsome than Peng Yuyan's.

"No...Nothing!" Several people turned around quickly, as if nothing had happened.

Zhao Gao: "It's inexplicable!"

……

Not long after, when everyone arrived under the city wall, Ling Qianhu came over.

Picking up the list of corps chiefs in his hand, Ling Qianhu announced it in a business-like manner.

"Zhang Quandan, take your team to guard the first stack."

"Yes!" The corporal named Zhang Quandan walked towards the tower with his team.

"Agou, you go to the second stack."

"Yes!"

"Little Leaf, you..."

One by one, they were assigned to the city wall, and it wasn't until ten minutes later that Zhao Gao and the others were read.

"Wang Ergou, you all go to the No. 876 crenel."

"Yes!"

After answering, Wang Ergou directly waved to Zhao Gao and the others, and took the lead to walk towards the city wall.

When he officially walked up to the city wall, Zhao Gao realized how tall and majestic it was.

Standing on the city wall and looking down, a condescending feeling came to mind.

Moreover, Zhao Gao found that the terrain of this Black Rock City was chosen too well.

The section of the city wall where they were standing was about 2,000 meters long, and every two meters, there was a crenel to attack.

And behind them, catapults, siege crossbows, arrow towers, as well as rolling logs, oil, these defensive materials.

Of course, there is also the "golden juice" that has to be mentioned in the ancient city guarding.

Golden Juice: Also known as dung water.

One can imagine how powerful this thing can be in the role of defending the city.

Physical attack is second, and mental attack is the most important.

The ancients used this thing to make the enemy hurt, and then contaminate the wound with gold juice, so that the enemy died.

After talking about the defense materials here, let's talk about the admirable part of this pass.

That's the terrain here.

This pass is a city built halfway up the mountain.

Hmm~ literally halfway up the mountain.

There is no top of the mountain at all. According to Zhao Gao's observation, when there is no such pass, it should be connected to the two mountains next to it.

And the mountain in the middle with a pass was built, as if someone had cut off the top of the mountain abruptly.

Therefore, it is artificially created this kind of city with a thin line of sky.

The mountains on the left and right blocked the way, making it impossible for the enemy to attack both sides of the pass.

And the pass only needs to defend the front, and it can easily deal with all the enemies.

Behind the pass, it leads directly to the rear base camp, so there is no need for defense at all, and it can continue to be used as a logistics transportation channel.

It is this concave-shaped terrain that makes Black Rock City known as the City of Despair.

Since this pass was established by the founding emperor, it has guarded the border for the country for three hundred years.

There are 20,000 elite soldiers in the pass, all of whom have been fighting day and night. During the war, the residents of the city can be recruited as civilians to help transport supplies for the defense of the city.

And the food and grass in the city and the supplies for defending the city have always been in a sufficient state. Even if the enemy keeps attacking, they can support it for half a year.

These information were all revealed last night when Wang Ergou was chatting.

With these materials and the terrain, Zhao Gao let go of some worries and was not afraid that this pass would be breached.

Speaking of which, someone may ask.

Question: "Why didn't the enemy bypass this pass and attack directly behind the city, or just skip this pass and drive straight in to attack the hinterland of this country?"

If someone really asks that, then Zhao Gao can only say: He takes it for granted, and thinks too one-sidedly.

Not to mention how long it will take you to bypass the mountain of this pass and run behind this pass.

Say you have so many troops, how can you not be discovered by the enemy country, as long as you are discovered, you will be attacked by the enemy on both sides, and your entire army will be wiped out.

Another, you skip this pass and go to attack the hinterland of the enemy country. Let's not say whether you will be discovered or not, but the food and grass for the soldiers and horses are also a problem.

Even if it is a war to support a war, one shot and one shot will run away, but with so many troops, once surrounded, the whole army will be wiped out.

And this is why the ancients attacked the cities one by one.

The most important thing is that by fighting them one by one, they not only occupied the city, but also guaranteed their own food.

……

Although it is said that this pass only needs to be defended from the front, the terrain is also blessed, which makes Zhao Gao put down some worries.

But standing on the city wall and looking into the distance, the black shadow of the figure that could not be seen, lifted Zhao Gao's heart that he had just put down again.

Zhao Gao didn't know how big and shocking the scene of 100,000 people was He only knew that he looked over from the city wall, and in the passage between the two mountains, the black figures filled the air until At the end of the field of vision, there is no interruption.

They camped 10 miles away from the city wall, and in front, there were civilians and auxiliary soldiers quickly assembling siege equipment.

As far as Zhao Gao can see clearly, there are as many as a hundred or more: catapults, siege crossbows, crash cars that hit the city gate, cloud ladders, and even taller buildings than Black Rock City.

This kind of building car was specially assembled by the enemy to watch the situation in the city.

Seeing this, Zhao Gao guessed in his heart: "From the first day they came here, they were told by the system that Black Rock City faced an army of 100,000 people, but ten days have passed. Why hasn't the enemy started to attack Black Rock City? It is for this reason that their siege equipment has not been assembled yet."

Moreover, Zhao Gao estimated that there were more than 100,000 troops here.

Perhaps the 100,000-strong army mentioned by the system is a regular army, and there are no statistics on civilians, auxiliary soldiers, prisoner of war camps, and logistical soldiers.

If you really want to count all of them, Zhao Gao estimates that there are at least 200,000 people.

And this guess, coupled with seeing the scene with many figures like ants, made Zhao Gao feel less optimistic.

Blackrock City's regular army is 20,000, plus Zhao Gao and some logisticians, it's about 40,000.

40000VS200000

This kind of clear, yet very large number, makes one have to worry.

If the enemy general doesn't care about the strength of the army and uses the continuous attack of the sea of ​​people, Zhao Gao can believe that he will definitely be able to break the city within 20 days.

"This... there are too many enemies! Can we really defend it?" Looking at the dark shadow of the enemy, Ma Feifei couldn't help but said in shock.

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