In Xianwu, people evolve infinitely starting from the prince

Although the warriors in this world do not understand air resistance.

They also do not know the concepts of balanced fuel efficiency during the flight of a spacecraft.

But years of experience still let them know that the flying building ship can only be the most labor-saving and stable when flying in the stratosphere 10,000 meters above the ground.

In Li Ruhai's words, that is: "The flying building ship can only avoid the interference of flying beasts as much as possible and maximize the use of the building ship's energy-gathering formation when it flies at an altitude of 10,000 meters."

The blue sky and the endless sea of ​​clouds.

Through the crystal window of the top room of the flying building ship, the clouds outside the window are ever-changing, like a series of vivid paintings, which are amazing.

However, no matter how beautiful and gorgeous the scenery is.

It will become boring after watching it for a long time.

So after the initial curiosity, Yang An lost interest in the flying building ship and the high-altitude scenery outside the ship, and began to practice as usual.

This behavior was undoubtedly a manifestation of hard work in the eyes of others, which attracted the praise of Zuo Zongzheng of the Zongrenfu and Wang Gonggong of the Silijian.

Yang An did not comment on this, nor was he happy or proud of the praise from the two great masters of heaven and man.

After all, the purpose of his hard work in cultivation has never been for the praise of others.

It is only for himself.

…………

Six days later!

The flying ship began to slow down slowly.

And began to descend from the 10,000-meter altitude layer to the 1,000-meter altitude layer, flying in the low altitude layer.

Don't get me wrong.

The deceleration and landing of the ship is not because it has reached the destination, Tiannan City.

Instead, the lookouts of the ship need to use the telescope in their hands to observe the surface conditions with their eyes, find the location of Tiannan City, and find a suitable landing point.

In fact, this is not a difficult thing.

Because Tiannan City, the island city of Haizhou, is different from other Daozhou prefecture cities.

Tiannan City.

The island city of Haizhou.

Also known as Tiangang City, Nangang City, Nanhai City, etc.

This is a port island city. The entire city is built on the coastline. It is also the largest city in Haizhou.

As long as the operators of the flying ship did not deviate too far from the route and flew to other Daozhou, it would be very easy to find the location of Tiannan City.

The captain and the lookout of the flying ship that Yang An was riding were experienced professionals.

So the ship they were riding did not deviate too far.

During the landing, the ship only slightly adjusted its direction and continued to fly towards Tiannan City.

Yang An looked down through the crystal window.

I saw a huge city, like a pearl, inlaid on the narrow coastline.

Small flying boats were like swimming fish, constantly shuttling over the city.

Dozens and hundreds of flying monsters of different sizes screamed in the air.

Yang An's eyes adjusted their focus quickly, and his field of vision moved down. His eyes passed over the large and small flying boats above the city and continued to look into the city below.

I saw a magnificent city comparable to the first-tier cities in my previous life!

The scenery in the city is unobstructed, the streets are lined with houses, one ring after another, the wide streets are connected in all directions and the flow of people is bustling, until it spreads to the end of the sight.

Although it is just a rough observation.

Yang An came to a conclusion in his mind.

"The population of Tiannan City is definitely over one million!"

This thought fell.

Another thought came to his mind.

"For such a prosperous city, what kind of huge number will the monthly tax revenue be?"

"If this tax revenue is exchanged for a hundred-year-old precious medicine, I am afraid that only one day's harvest can meet the needs of completing the eleventh evolution."

Thinking of the end.

He couldn't help but think divergently: "Only Tiannan City is so prosperous. If all the taxes of the thirty-six counties and thousands of counties in the entire Haizhou are added together, how much gold, silver, money, and precious medicine will it be?"

It's impossible to calculate.

It's really impossible to calculate.

Yang An looked at the huge city below, his brain was a little confused, and all he could imagine was the scene of himself becoming the lord of Haizhou, eating century-old precious medicines as dried carrots and various high-level elixirs as candy beans.

That kind of life.

Just thinking about it is not ordinary happiness!

As it got closer, the flying building ship Yang An was riding had already lowered its flying altitude.

"Buzz--"

When the building ship flew over the twenty-zhang-high city wall from high altitude.

Yang An vaguely sensed some hidden fluctuations.

They seemed to have passed through some invisible barrier.

"This is."

Yang An narrowed his eyes slightly and subconsciously detected his mental power.

"Your Highness, don't worry. This is the spiritual energy detection array of Tiannan City. Any flying boat and flying bird that wants to enter Tiannan City needs to be detected by the array."

Li Ruhai said with a smile, and told Yang An the source of the previous secret fluctuations.

After hearing this answer, Yang An couldn't help but glance at the endless huge city below, and asked curiously: "Are there all over Tiannan City?"

"Of course."

Li Ruhai nodded in response.

Hearing this, Yang An's eyes flashed with amazement.

A large formation with a radius of more than ten miles, covering the entire city.

How is this huge formation set up?

Where does the energy to maintain the formation come from?

Most importantly, what is the basis for the detection of this spiritual energy detection formation?

Yang An thought of this, narrowed his eyes slightly, and asked: "What is the basis for testing this psychic array?"

Li Ruhai said: "Back to Your Highness, whether it is Zhoucheng's psychic detection array, it is mainly aimed at flying objects in the air, such as flying boats, flying tower ships, flying beasts, etc."

"As for flying boats and flying tower ships, basically only the flying boats and flying tower ships specially made by the imperial court can fly and land over the city."

"For flying ferocious beasts, they need to pass the assessment of the Imperial Palace's Department of Alien Beasts. After passing the assessment, a special mark will be injected into the body of the monster beast. Only with this mark can it enter the city."

"As for other flying instruments, they also need to be specially made by the imperial court before they can enter the city."

Yang An nodded, thoughtfully.

He should have thought of it earlier.

Since there are flying artifacts such as flying buildings and ships in this world, there will naturally be corresponding countermeasures.

Otherwise, if the two armies are fighting, the enemy can completely change their appearance and pretend to be one of their own Feitian Tower ships to attack the city or fly in combat.

In addition, if there are no air detection and response methods, fugitives and others can directly escape from the city in a Feitianlou ship, etc.

This situation is like the airplane in the previous life.

After the emergence of aircraft, radar and anti-aircraft guns were soon born.

He even highly doubted that in addition to the psychic detection array, there were other supporting attack arrays in Tiannan City.

Thinking of this, Yang An suddenly thought of a question and asked: "Since there is a psychic detection array above Tiannan City, is there also a psychic detection array above Tianjing City?"

Li Ruhai grinned and said noncommittally: "Your Highness, Tiannan City is just a continental city, or a remote continental city far away from China, while Tianjing City is the eternal imperial capital."

"I can't reveal too much about the situation of Tianjing City's defense formation."

"This old slave can only say that even if the protective power of a thousand Tiannan cities combined is not as good as the outer city of Tianjing City."

"The city defense formation in Tiannan City today is aimed at the Dharma Master who is at the second level of martial arts at most. It cannot really compete with the Grand Master of Heavenly Man who is at the first level of martial arts."

"And Tianjing City?"

Li Ruhai paused slightly when he said this, and then looked at Yang An and said word by word: "The old slave can only tell His Highness that according to ancient records, since the establishment of Tianjing City, more than ten martial arts gods and gods have died in Tianjing City. ”

"So your Highness can completely imagine what the formation situation is like in Tianjing City!"

Tianjing City can become the eternal imperial capital, not only because of its geographical location, but more importantly, because of Tianjing City itself.

Because since ancient times, Tianjing City has always fallen from the inside and has never been forcibly breached from the outside.

For this reason, Tianjing City also received the title of "Eternal Imperial City".

Li Ruhai didn't know whether Yang An asked about Tianjing City's city defense formation intentionally or unintentionally.

But he didn't think it was a good idea.

The golden dragon flag buzzed.

when