When the ship reaches an uninhabited valley, Arpad stops the ship, and they get out of the ship, come out to catch their breath, and plan their next move.

In the valley, Luo Xingyu knew the details of Arpad's detention and escape, and learned that his compatriots had died of illness or old age, and the US military detained him under the pretext that they could not contact their planet and protect him, and repeatedly asked him about science and technology.

Rubas also revealed a secret that Aspard's compatriots had hidden their large ship in an ice cave in the Arctic, and they kept it secret until the last one told Rubas about to die that he could use it.

All they have to do now is fly to the North Pole, find the ship, see if it still works, and if they can, use it to leave Earth and return home. Since they still need to navigate, and they may have to search for a long time in the North Pole, they still need Luo Xingyu's help. Alpard gave Luo Xingyu a purchase list and asked him to help him purchase according to the above requirements, this list was written in English by Rubins, who has been on Earth for more than 70 years and has learned to speak and write English.

As soon as it was dark, Al Pad used a spaceship to send Luo Xingyu to a location not far from the road, Luo Xingyu stopped a hitchhiker, returned to the city, purchased enough supplies according to the list, and returned to the road near the valley, and Al Pad took him back to the valley.

Everything was ready, they got on the ship, and the ship flew towards the North Pole again.

The journey was very smooth and there were no obstacles.

The closer you get to the north, the colder the weather becomes, and Alpad's clothes have the function of thermal insulation, so there is no need to add clothes, while Rubas and Luo Xingyu both need cold-proof clothing to keep out the cold, so they wear cold-proof clothes that have been bought in advance. As the temperature got cooler and the sky got brighter, it didn't take long for the positioning to show that the North Pole had arrived.

At this time, it is the polar season of the Arctic, a vast black ocean wave shimmering under the bright sky, and countless large and small white icebergs are floating on the ocean, and everywhere is lonely and desolate, and there is no sign of life. Because they didn't know the specific location of the big spaceship hiding in the ice cave, and the range was too large, the small spacecraft began to fly inward in a circle along 67 degrees north latitude, detecting it as it flew.

When the third circle was reached, the alarm went off, and the probe spotted the large spaceship.

The small spaceship stopped in front of an ice and snow cliff with a height of nearly 60 meters on a huge iceberg, Alpad asked Luo Xingyu and Rubas to get off the ship, and then drove the spacecraft to scan up and down the cliff for a while, stopped at one location, raised the tail out of the support, and then lifted the hull sideways, and drilled upside down with the tail against the ice wall like a drill at high speed. It didn't take long for a large hole with the same diameter as the spaceship drilled out of the ice wall, and after about ten minutes of drilling, the spaceship retreated, and Alpad reconnected with Luo Xingyu and Rubas, hovered the spaceship over the hole just drilled, and they got off the small spaceship and walked towards the hole.

At the end of the cave, there is a wall of ice in front of you. Alpad picked up the nuclear electromagnetic gun he had taken from the boat and swept at the remaining ice walls, the ice falling one after another, and in a few moments, a silver, shiny metal casing was revealed. The entrance to the cave is exactly one of the hatches of the large ship. Alpad pulled out a crystal clear card-like object from his body, swiped it on the hatch, and verified his identity through the camera, and the four hatches immediately opened like lotus flowers, revealing a large dark and deep hole.

They entered the tunnel, twisted and turned, passed through countless passages and hatches, and came to a dark hall, where Alpad flicked a switch on the edge of the hall, and the lights in the hall came on in an instant.

Luo Xingyu found that they were already in a rotunda with a vaulted dome, along the round wall of the hall there was a circle of consoles, there were many screen instruments on it, in the center of the hall, there was another semi-arc platform, like the position of the main controller, there was a seat in front of the main console that was obviously wider than the other seats, and a spherical object protruded on the main console.

Alpard walked to the main console, pressed a few times on the sphere, a low roar began to be heard in the distance, and it began to light up, Alpar pressed again, and an image similar to a holographic map appeared over the sphere, Alpad checked one by one with his hand, and a voice in Montatu language echoed in the hall, reporting Alpad's inspection items one by one. Soon after, Alpad turned around and told Luo Xingyu that the ship was generally in good condition and that he needed to fly the big ship out of the ice cave and do a closer inspection.

Arpad asked them to sit down in the seats next to them and hold them in place.

Alpad started the ship, the ship began to tremble slowly, the ice outside the ship broke and fell, as the hull shook more and more violently, the ice outside the ship fell more and more violently, suddenly the hull of the ship shook suddenly, the hull of the ship jumped up, a bright light shot in, they could see the basket of the sky outside, the ship had rushed out of the ice cave, back to the sky.

Alpad parked the boat in the open space in front of the cliff, and he told Luo Xingyu that he would have to conduct a more detailed inspection of the spacecraft next, and then send him home after their spacecraft was tested, Luo Xingyu said that it was no problem.

So in this way, Alpad began to conduct a comprehensive inspection and test of the spaceship on the glacier, and Rubas is also an alien and knows some spaceship systems, so he can help Arpard do the test together. Luo Xingyu had nothing to do, he either played in the snow outside the spaceship, or visited the structure of the spaceship and watched Alpad inspect and test the spaceship.

The name of this spacecraft is "Echo", and it is a scientific research ship, in the shape of a saucer, a veritable flying saucer, which has everything, maintenance rooms, weapons hangars, medical cabins, storage, and so on. It has a diameter of more than 100 meters and a height of about 20 meters, and is divided into inner and outer disks, which are rudder flywheel structures, that is, no matter how the outer disk rotates or the flying saucer flies in what direction, the inner disk can always be kept facing the forward direction. The main control compartment is in the center of the inner dish, and half of it is protruding outside the dish. It is powered by a nuclear fusion engine, which flies by spraying high-energy ions in near space, and converts high-energy ions into negative energy anti-gravity flight or teleportation into virtual time through a warp engine in space. As for the principle of the warp engine and the teleportation into the void space, this requires a complex theoretical foundation and data to understand, and Luo Xingyu can only wait for the future to understand it slowly.

On the spaceship, Luo Xingyu learned about the basic situation of Lubas's planet and the details of his capture. There was a great war between the two groups of their planet because of the conflict of interests, the war lasted for decades, and after the war, a large number of species have become extinct, in order to repair the environment, the last unified government sent them to outer space to find a planet rich in species. They were already running out of energy when they were approaching the solar system, and it took a lot of effort to reach Earth, but the anti-gravity thrusters only had an energy ratio of 0.3, and there was no way to land smoothly, so they finally crashed into Roswell. Of the thirty men in all, only six survived, all of whom were captured by the American army. He is a biologist, assisting the U.S. military in biotechnology research at the base, and in the process of research, he also secretly collected the genes of species on Earth that he thought was suitable for his planet, and hid it in a freezer. The Americans also knew that he was collecting species, but didn't pay much attention to him because they thought his actions were harmless and that he might never have a chance to return to his home planet. Before leaving, he had already taken out the freezer and prepared to take it back to his planet, hoping that it could be used to improve the environment of his planet.

After four or five days of testing, Alpad flew it into space for a while, and the results showed that the Echo was intact and had plenty of power, and they had no problem flying back to their home planet.

On the night they learned of the result, they celebrated and decided to send Luo Xingyu back to China the next day before leaving for their hometown.

That night, after Luo Xingyu returned to the cabin, he couldn't sleep for a long time. Tomorrow Alpad and they will go back to their hometown, and they will be separated, maybe forever. Luo Xingyu suddenly had a thought in his reluctant mood, since the universe is so vast and there are so many alien civilizations in the aliens, why don't you go out with them to have a look? This thought flashed through his mind, and he immediately began to get excited. He already knew that there were aliens in the universe, and that Alpad was so advanced, that it would be wonderful if he followed them to their planet or other planets. He knew that with Alpad's advanced technology, even if they didn't need to send him back, they would always have other space expeditions, and it would not be difficult to send him back at that time. If he goes to the alien world not only to see the alien civilization, maybe he will also learn advanced alien technology, and then he can come back to benefit the earth, even if he can't learn these technologies, he can see and open his eyes, that is also something that many people have dreamed of all their lives, and now he has such a good opportunity, why should he miss it?

He thought like this, and began to get excited, as for the parents, he knew that they would definitely not allow it if he asked, he was going to call them and write an email to them, telling them his intentions, he knew that it was not right to do so, they would be worried and sad, but for the sake of his dreams, he couldn't care so much, so he went out to study, what a reckless and willful child. Everyone will see later how much he will pay for his recklessness.

He decided to tell Alpad about this request the next day, and if he didn't agree, he would pestering him to beg him or threaten him with a scoundrel, and only after thinking about it did he go to sleep in peace.

Early the next morning, he told Alpad about this idea, and as expected, Alpad refused as soon as he opened his mouth, so he pestered Alpad and begged hard, but Alpad was still very hesitant, and in the end, Luo Xingyu saw that Alpad still refused to agree and pretended to threaten, if Alpad didn't agree to take him away, he forcibly wanted to send him back, and then he jumped off the spaceship, Alpad saw that he was so resolute, he helped them again, and he didn't have much time to dwell on this matter, I had no choice but to agree.

Luo Xingyu hurriedly called his parents, needless to say, they definitely didn't agree, but after Luo Xingyu said his reasons and determination, he hung up the phone, wrote another email, and sent his parents the environment he was in and the photos of the spaceship, and then told Alpad that he could go.

Alpad shook his head helplessly, sat down in front of the main console, asked everyone to get ready, and then started the spaceship, the spacecraft rose into the sky, stayed in the air for a while and posed, and then turned around and flew towards space.

Rubas knew that they had joined a member of the team back home, and he was noncommittal, as an astronaut, he could feel a strong curiosity about this unknown world, and they were the same back then, so they went on the path of exploring the universe, and space travel, who could resist such a temptation? He's even a little happy that he's added a new member to the journey, because he's already a little bit fond of this human lad.