After the pitch-black fighter plane penetrated into the clouds, Luo Sijie's heart felt a little relaxed.

The world in the clouds, though different from the world outside the sky, is at best a fog with very low visibility.

Due to the fact that the design of Wu Ji's fighter was one era higher than that of Yan Ling, in this small space, Luo Sijie and Wu Ji did not hear too many roaring sounds, as well as those annoying sound of air currents scribbling.

At most, it was the huge golden aperture above the radar dashboard in front of Wu Ji and the red spots around it that followed closely but kept the distance unchanged, and some prompt sounds were triggered.

But coincidentally, after penetrating into the clouds, they never deviated from the golden circle of light that was not far away on the radar.

He and Yan Ling both knew that it was the Lost City that belonged to Longqing's second location.

However, such an area is called "Laputa" in the west, which means suspended city.

Looking at the surrounding fog and feeling the silence that matched, under the fantasy interweaving of white and pitch black, Luo Sijie finally felt a trace of peace and tranquility.

"Miss, I have to say that this Longqing of the empire is really like a piece of crispy and sweet cheese, hahaha. Wu Ji teased, but his hands did not leave the joystick.

"Sweet cheese?"

"Outside as hard as a stone, if you look closely, its practical knife and fork gently reveal its fragile nature. And the Flame Empire, which is powerful on the outside, is not it just a piece of cheese with an attractive aroma in the eyes of other countries?"

"Yes, my father was still talking about the Empire's finances the day before yesterday. If it weren't for the fact that our goods could still be transported beyond the oceans, with the war in the Central Empire and the blocking of the transportation of goods on the road, I am afraid that the empire's finances would have collapsed long ago. Luo Sijie summed up the situation in the empire that Luo Heng had heard about.

"And that's not all, my miss. Wu Ji said helplessly, and the mechanical arm of his right hand skillfully lifted a place under the control panel of the aircraft, and gently pinched it and took out something that looked like a small stick.

"That's not all, yes," Luo Sijie didn't notice Wu Ji's small movements, and just continued to talk to herself, "When I went with Ye Gu on the Imperial train, the refugees along the way had already appeared in the center of the city. For more than two hundred years, the Empire's economic and agricultural problems had never been more dire than they are now. ”

"But miss, this is one of the reasons why we must stop the power of the Lost City from being activated. Then again, Miss, have you ever heard of the legend of the Lost City?" Wu Qi asked, his right hand temporarily pressing the small stick-like golden object to the surface of the console.

Due to the relationship between seat belt restraint and poor viewing angle, it is impossible for Luo Sijie to pay attention to this.

"The Lost City contains part of the power of the Dragon Clan, and when the Dragon Realm on the ground is opened, the Lost City in the sky will also be summoned by the magic source power of the Dragon Light, and reappear above our heads from a different plane. This also becomes a paradox. Luo Sijie paused as she spoke, and the slight coldness in the air made him feel a little uncomfortable for the girl.

Although the special uniforms of the Air Force they wear, a combination of steel and leather, can withstand some of the cold, humans cannot be completely invincible to nature, and everything is weak in the face of nature.

"That's right, my young lady, there's still half of your story in this version. Wu Ji said with a smile.

"Paradox, if humanity hadn't released the dragons, then no one would have been able to go to the Lost City. Because birds are limited in size and flight altitude, even large bodies can provide human drive. Therefore, if the dragon's gate on the ground is opened, but the lost city in the air is not opened, then the dragons must still be half restrained, and they will not be able to escape from the cage at all, and they will not be able to go to the lost city at all in order to free the dragons. Luo Sijie's language seemed a little jumbled when she spoke, but there was nothing wrong with her thinking.

"To put it simply, the necessary condition for opening the Dragon Realm is the inevitable result of the opening of the Dragon Realm, isn't it?" Wu Ji added.

"It's like a philosophical question, it's not simple at all, Uncle Wu. Luo Sijie pursed her lips, revealing a coquettish expression that was different from her usual aura.

"Let's not talk about that, miss, have you heard of another version?" Wu said leisurely, his left hand still controlling the control stick, making the plane constantly change its position in the clouds, but his right hand stretched out two mechanical fingers thoughtfully and kept tapping on the steel panel of the console.

"Another version?" Luo Sijie wondered, "I haven't heard of it, and my father hasn't told me about it. ”

"That's normal, my young lady, our lord came from the army, and didn't study philosophy, the occult, or even history in depth. Presumably, if you've been with those Wizards for a long time, you'll be familiar with such a word, Laputa. ”

"Laputa, that's familiar. Luo Sijie struggled to recall.

This word is not the Chinese language of the Empire, but from a country that the Middle Empire once conquered. It probably means a suspended city in the sky. The city existed long before the dragons ruled the world. To use the popular theory of evolution in the West, it was built in the sky as early as when humans were apes. ”

"Did the Creator build it?" said Luo Sijie inadvertently.

"Perhaps, but I don't believe it. Whether it is a mechanic or a scientist in our time, no one will believe in God or the Creator unless it is absolutely necessary. But then again, the Lost City was once a place where dragons coexisted with some creatures with god qualifications, and there is no information on what exactly it did. But the only thing that is certain is that when the dragons were in this city, they coexisted with the Wind Clan. They're all human, too. Wu Ji turned his head back with a look like coaxing a child to tell a story.

"Humans, were the Lost Cities once inhabited by humans? Luo Sijie opened a pair of eyes with a thirst for stories and knowledge, leaned forward, and looked at Wu Ji.

The radar on the left side of their plane still showed the huge ball, but it seemed that as the plane moved forward, the ball belonging to the Lost City was also moving in sync.

Otherwise, they would have seen a little trace of the edge in the conversation for so long.

"They belong to the children of the wind," Wu Ji turned his head again, holding the stick he had just taken out in his right hand, and continued, "They have mastered the power of the wind, so they are able to climb this lost city at an altitude of nearly 10,000 meters. If the gods who created the city earlier were only to provide a paradise-like dwelling, then these children of the wind started a prehistoric civilization here. ”

"Prehistoric civilization?" Luo Sijie felt more and more incredulous as she listened, and the strange knowledge was placed in front of her like a strange bright red tomato called the fruit of a wolf, making her feel a temptation, but also very puzzled.

"Legendary, ah, not good!" Before Wu Ji's words could speak, he and Luo Sijie both felt a strong sense of vibration.

There is no need to guess, it must have been an attack by the Yanling aircraft.

"Did you catch up?" Luo Sijie said nervously, but she seemed completely powerless about it.

"How so? His planes should not be capable of shell attacks, which I designed. Wu Ji was puzzled, he didn't believe that the product he had deliberately left some defects had been manipulated to such power.

He didn't even think that Yan Ling would equip the plane with shells!

But it was clear that the violent vibration just now was the damage that only the cannonball could do.

But there seems to be another possibility.

Thinking of this, Wu Ji held all his hands on the control stick of the plane to manipulate the fighter plane and the Yan Ling behind him. In addition, he had to pay attention to the information fed back by the radar in the thick foggy clouds.

Tick, tick.

The sound of the radar suddenly became violent.

Suddenly, it seemed that in just a second or two, eight red and constantly flickering points of light appeared around the center where Wu Ji was.

"It's surrounded!How is it possible!" Wu Ji shouted in surprise, and hurriedly maneuvered the plane to rush vertically upward.

The plane that changed the direction also made the direction of his and Luo Sijie's flight parallel to the ground, in this case, Luo Sijie had to hold on to the seat in front of him tightly with both hands to ensure that he was not unnecessarily injured.

However!

Bang!

A crisp sound came from the front of the plane, and for some reason, the plane with full horsepower seemed to be standing still, and the eight fighters around him still did not move in the distance.

"Is this the Demonic Source Force?" Wu Qi analyzed, although he did not use and believe in the Demonic Source Force, he did not deny his existence.

It's just that he didn't expect that it was the Demon Source Power that caused him a predicament in front of him.

"Wu Qi, I'm Yan Ling. I didn't expect you to betray the empire too. "That slightly ethereal sound is from the Yan Order.

At this time, he was like a victor, with a smile on the corner of his mouth, holding the microphone on his left hand, and with an outlet, he issued a victor's declaration to Wu Ji.

"Damn!" Wu Ji cursed directly, regardless of his image.

But he still regained his horsepower and tried to break through the blockade of the fighters in front of him.

Bang!

The crisp sound of his plane's head was heard again.

He still hasn't broken through the encirclement!

"It's useless, look around?" Yan Ling said with a confident smile.

It was at this moment that the neat light around the eight fighters, as well as the purple sphere that wrapped the Wu Machinery fighter, really entered the eyes of Wu Ji and Luo Sijie.

"Energy shields? It's just a conceptual thing, and no mechanic can make it. Wu Ji looked carefully at the lines and flashing rays of light and orbs and said.

"This is the Empire's Hallows. Yan Ling seemed to be able to read Wu Ji's words through the glass.

"What do you think machines can do? You'll hide, and so will the Imperial Hallows. However, the combination of prehistoric civilization and dragon technology in the Lost City is enough for the Flame Empire to dominate the world. And I, I don't want to kill you for the time being, your research and abilities are of great use to the Empire. Yan Ling said proudly.

"What now? Uncle Wu. Luo Sijie asked anxiously, she didn't want to be a prisoner of Yan Ling.

"There's only one way, sit tight. Wu Ji said, quickly opened the lid on the control panel, and pressed three buttons in one go.

Suddenly, the engine at the tail of the plane began to operate at high speed, and it seemed that the energy of the entire aircraft was concentrated at this one point.

Just as Wu Ji was about to make the most violent attack to escape from the encirclement, he suddenly found that he and Yan Ling had already walked out of the edge of the fog.

But a huge tentacle like a demon suddenly stretched out from the clouds and stretched out to a fighter plane beside Yan Ling.