The cargo spacecraft traveled through the vast space and entered the Weiner Star Space, and the spacecraft stayed in space for a while, and soon locked onto the castle Princess City at the junction of the ground prairie and the ocean.

In order not to alarm the inhabitants of the ground, the ship landed in an uninhabited wilderness far from the castle. Shanglin, Zhen'er, and Kapok said goodbye to Mu Hong, and then Kapok drove the amphibious chariot to leave the spaceship and fall to the ground.

After watching the spaceship disappear into space, the three of them looked back at the prairie that haunted them.

The fields in front of you are lush with vegetation, and the warm sunlight pours on this deserted land. As far as the eye can see, you can see the outline of a castle in the gray sky.

In order to defend the kingdom of his descendants, Muer has been supporting Kabayashi and Zhen'er and Kapok at all costs, and soon after they entered the technical school, Muer invested in an old factory to make agricultural machinery. Both the amphibious chariot and Wang Fan's small spaceship were assembled in the factory that Muer had purchased, and Mu Lu and Mu Huang were part-time mechanics at the factory.

At technical school and later university, Jane focused on mechanical design, while Kabayashi and Kapok focused on mechanical manufacturing, and they first learned to use the resources available in the prairie to make gunpowder and gunpowder guns, and then relayed this technique to Kabayashi's father through the space sheriff of the seventh space.

They then learned to make the most basic industrial machinery and equipment, which would be the basis for the Industrial Revolution when they returned to the prairie. In the last three years of Russ, they devoted all their energy to designing and assembling this vehicle, and hoped that when they returned to the savannah, they would be able to use this vehicle as a sample to mass-produce a vehicle with comparable performance to fight against the future invasion of the land by the Undersea people.

Kapok Zi drove the chariot, and Kabayashi and Zhen'er sat in the passenger seat, and the three of them were excited and excited.

What they want to know most now is how well this vehicle performs on the savannah, because a vehicle of this specification has long been obsolete in Russtar, and because it is illegally equipped with weapon systems, it is impossible to obtain a license from the Ras Star Ministry of Transportation to drive on public territory.

Once the vehicle was assembled, the three of them could only drive at a low speed in the industrial area on weekends when no one was around. To test the performance of operating on the surface, they drove the tank around a reservoir outside the factory for several hours in the middle of the night.

Although the vehicle had never run in such a vast field after it was assembled, the three of them were confident and looking forward to the performance of the vehicle. Because they follow the advice of Mrs. Muer, from the basic components to the key equipment, they choose the best materials and the best quality possible, and every step of the assembly process is rigorously tested.

Although the style of this chariot is very old, the trio tried to be as modern and intelligent as possible when designing, and the exterior color of the vehicle body can be automatically adjusted according to the hue of the environment to achieve the purpose of stealth. The bottom of the vehicle is driven by two tracked wheels, which can be walked on rough mountain roads, and the hull of the vehicle is wrapped in a layer of armor made of alloy material, which is strong enough to withstand the repeated blows of ordinary gunpowder shells.

The hull of the car is more like a small warship, with the front and rear ends being curved upwards, and the curved tops form two flat decks at the front and rear. The carriage is a raised rectangular body in the middle of the body, only about one meter above the deck, and there is an entrance and exit on the left and right sides of the body, and the entrance and exit are so large that even tall kapok seeds can enter and exit the car without obstacles.

In addition to the three seats in the front cab, there were originally two rows of six seats, but the seats were now stowed, and the car was filled with special tools and key components for the manufacture of sports machinery.

During the day, sunlight can shine through the roof into the interior of the car, allowing the occupants to enjoy the warmth of natural light. There are many hidden air vents in the car body, which can allow people to sit in the car for a long time and breathe fresh air outside the car normally.

In front of the cab is a large window that transmits the scene from outside the car to the window in real time.

Kapok first drove the chariot slowly along the coastline in the direction of Princess City, and after driving a few kilometers, he found that all the technical indicators were normal, so he gradually increased his speed, and the chariot roared and moved quickly on the bumpy grass. Although the road was bumpy and shaky, the three people in the car were very satisfied with the test results.

"It seems that there are no problems with the car's sporty performance, and I would love to fight the undersea people now and test the performance of the laser cannon we assembled!" Kapok grinned.

Zhen'er smiled: "Kapok, you are too arrogant, don't you, you want to fight with the people at the bottom of the sea with just this chariot?" ”

Shanglin said with a serious expression: "Ten years in Russ Star time, about twenty-five years in Weiner Star time, in such a long time, the military equipment of the undersea people will also be greatly improved. If they concentrate their fire on our tank, even if the armor can withstand it, the nuclear fusion device in the tail will be damaged or even detonated under the continuous blow. Therefore, we need to create a tank powered by an internal combustion engine as soon as possible, which can be escorted on the battlefield to jointly fight the enemy. ”

"I hope that after Wang Fan returns to Earth, he can quickly create a spaceship that can fly to Weina Star, as long as there is a spaceship, the undersea people are not our opponents at all." Zhen'er said quietly.

As the three of them spoke, a large rolling and colorful forest appeared in the window.

"Hey, what's going on? How can there be a rainbow forest here? Kapok said in surprise.

Shanglin stared for a moment and suddenly realized: "I remember, my father took me here to plant trees when I was a child, and this area was still a large small hill at that time, and I remember that those tree species were given by your father. ”

"I see! The hills have become forests, and we have grown from naughty children! Kapok sighed.

The armored car quickly rushed out of the forest along a winding passage in the forest, on this side of the forest was a large pasture, sitting on a high seat and looking through the window, groups of herbivores and tents of different colors could be seen scattered across the vast grassland, and the flags fluttering on the tall walls of Princess City were already faintly recognizable.

Shanglin stared at the window and said, "Hey, it's very lively on the city wall, there are soldiers standing on it, and there are a few black things, those must be gunpowder cannons made by my father." Kabayashi said excitedly.

Because Shanglin's father has a space pass in his hand, he can regularly exchange some information with Shanglin through the space sheriff, so the three of them have some understanding of the development of the prairie in the past ten years.

"Did they see us a long time ago? It's impossible, there's such a big rainbow forest in between. Zhen'er said suspiciously.

Kapok increased its horsepower and ran towards Princess City.

Seeing that it was only a few hundred meters away from the south gate wall of Princess City, Shanglin suddenly shouted: "Stop!" They are firing at us! ”

Kapok hurriedly braked, and the chariot rushed forward more than ten meters due to the inertia of movement before stopping. Immediately, several black orbs flew towards them from the top of the city.

"Stand back!" Kabayashi shouted.

Kapok Zi was in a hurry and forgot the operating procedure for returning the car, and the black spheres flew one after another and smashed on the grass around the car body and exploded, and Zhen'er was so frightened that she hid in Shanglin's arms.

One of the shells smashed into the front end of the car and exploded, the car shook violently, and when the first round of attacks stopped, Kapok finally started the reverse operation, and the armored car roared and retreated a hundred meters, and there was no more artillery attack at the head of the city.

Kabayashi glanced at the dashboard and said calmly: "All performance indicators are normal, and our armored shell withstood the first blow of the gunpowder cannon at close range!"

"They're sure we're underwater, what should we do?" Kapok wiped the cold sweat from her head with her hands.

"I'll get out of the car! They knew it was us when they saw me. After speaking, Shanglin opened the car door, jumped out of the car, and waved to the soldiers at the head of the city.

Kapok then jumped out of the car to check the body of the car hit by the gunpowder cannon, only to see a large circle of black and yellow marks on the surface of the car body, he wiped it with his big hand, the car body had a little sign of dent but no damage.

With a smug smile on his face, he said to Shanglin: "Hey, it's okay, the armor material we chose can completely resist the blow of the gunpowder cannon, and the cold light cannon of the seabed people will not be more powerful than the gunpowder cannon just now." It's a pity that we can't make such alloy materials in the prairie. ”

The gates of the city were wide open, and a group of cavalry rushed from the city, carrying gunpowder spears on their backs and a sword at their waists. The leader was a bearded middle-aged general, who shouted, "Shanglin! Cousin! Kapok! ”

In the blink of an eye, the general rushed to Shanglin, and he reined in his horse and jumped to the ground.

Shanglin looked at the bearded general who came up in surprise and said suspiciously, "You are my cousin?"

The general hugged Shanglin and said, "Shanglin, you don't recognize me, but I recognize you and Kapok at a glance!" I'm your big cousin of Agu! You guys suddenly came out of the woods and rushed straight to Princess City, but we were frightened, thinking that it was the people from the bottom of the sea who came to attack Princess City, and the few shots just now didn't destroy this heavenly machine, right? ”

Kabayashi said happily: "Don't worry, the chariot is intact. The big cousin's cannon salute was a welcome home."

Kapok Zi walked over and said loudly: "Hey, you are the eldest cousin of Shanglin?" How does it look so old? ”

Agu let go of Shanglin and turned around and punched Kapok's big belly lightly, and sighed: "Alas, Kapok, if I had gone to the outer heavens with you instead of Yama, I would be as young as you are now." ”

Kapok Zi smiled: "Big cousin don't be sad, it's easy for you to live forever, when Shanglin and I finish running errands in the prairie and take you to live in a fairy mountain outside the sky, you will live forever." ”

Jen'er climbed out of the car, she had been to Gran Island in a hot air balloon to see Yama's family, she greeted Yagu with a smile: "Big cousin Yagu, do you still recognize me?"

Yagu waved at her and smiled, "Princess Zhen'er, you're back too, you're getting more and more beautiful!" ”

When the cavalry gathered around the three princes and princesses who had returned from the sky, Yaya's expression became sad and said, "Kabayashi, princess, Kapok, I want to tell you bad news, our family's Grand Island has been occupied by the sea people. ”

Shanglin, Zhen'er, and Kapok were suddenly shocked.