At this time, the human base in the underground world.
"Huh...?" Xu Ying suddenly let out a soft "huh" and raised her eyebrows slightly.
"What's wrong?" Li Wenxi turned and looked at her.
The two are now resting in the villa.
They had just contacted Wei Shishi and explained the situation to her, hoping to use the Wei family's military equipment to fly up there and check it out.
Unfortunately, Wei Shishi did not agree to them directly.
The current head of the family is still Wei Bai, and Wei Shishi does not have the authority to use advanced military equipment here.
It would be fine if it was somewhere else, but this is the heart of the human base, and using military equipment to fly near a dome two or three thousand meters high would be very eye-catching.
Especially since there are two other big families eyeing this place covetously, we have to be more careful when doing such things.
So Wei Shishi couldn't agree to them immediately.
She told them that she would convince her grandfather when he came back.
So, the two of them, unable to do anything for the time being, returned to the villa and waited for news from Wei Shishi.
But neither of them could sleep.
It was almost morning, so they decided not to sleep and started eating.
At this moment, Xu Ying let out a light exclamation and raised her head slightly to look upwards.
"What's wrong?" Li Wenxi also looked in the direction she was looking.
There was only the ceiling.
"Hmm... Is that true? It's so easy to find?" Xu Ying blinked. "That entrance must be hard to find, right? Is it because of the red panda?"
"Little Panda? Are you talking about Coco?" Li Wenxi was very concerned about Xu Ying's words. "What happened to Coco?"
"Ah, it's okay, it's just..." Xu Ying looked at Li Wenxi, "The entrance here was found by my brother."
"…Really?" Li Wenxi's eyes lit up immediately, "So fast! How long has it been?"
"I also feel that it won't be that fast..." Xu Ying rubbed her head in annoyance, "If brother opens that entrance, the upper and lower parts will really be connected."
"Open the entrance? What does that mean?" Li Wenxi asked.
She didn't come down using the normal method.
At that time, she was pulled by Xu Ying into a relatively hidden jungle, and before she could react, in the blink of an eye she arrived in the underground world and the villa.
She didn't pay much attention to it at the time, after all, she was used to using the transfer gate on the ground.
Of course she still asked: "Is this a portal? What are the coordinates?"
"Ah... yes! It's the portal. It's very secretive, otherwise it would be discovered." This is Xu Ying's answer.
But now it seems that it was not a portal, but Xu Ying's own teleportation ability.
So she had no confidence that Xu Xin could find the entrance to the human base.
But I didn’t expect that they actually found it, and so quickly!
One day and one night
"Hmm..." Xu Ying pursed her lips.
"That's right... If it was before, even I could only use my own teleportation ability to travel between the ground and here, and the two places were not really connected. But if my brother unlocked the mechanism that only he and I could trigger..."
The more Xu Ying spoke, the more worried her face became.
"Then, there will be a normal passage connecting here to the ground that anyone can use?" Li Wenxi took over and asked.
Xu Ying nodded slowly: "That's right. It wouldn't be good if those alien invaders knew about this."
"Didn't they... already know this?"
Li Wenxi pointed to the top of his head: "If our guess is correct, didn't they set up a transmission device on the dome a long time ago?"
"That's different." Xu Ying shook her head.
"The function of the teleportation device is to provide stable long-distance teleportation with a random starting point. Its main capabilities lie in 'random starting point' and 'stability'. When using the teleportation device to teleport, there is no risk in selecting any place as the starting point.
But its disadvantages are also obvious. The transmission device cannot transmit in large quantities, but can only transmit one by one, and there needs to be a period of time between each individual. I am not sure about this interval, but it should not be less than half an hour. This is also a compromise made for stability.
So, even if there is a teleportation device here, there is no need to worry about the enemy's army coming through the teleportation device. The threat to this human base is not that strong yet."
"Is that so? A half-hour cooldown? I don't need to worry too much. Is it very stable..." Li Wenxi thought for a moment, "The coordinates that Xu Xin will create, the transmission is also very stable, right? We haven't had any problems with transmission."
"You mean the coordinates? That's the culmination of our technology. It's amazing." Xu Ying showed a slightly proud expression, "I'm also one of the researchers! But... it's not very stable, right? When you teleport for the first time, you will basically feel dizzy and weak, right?"
"Ah, so it is true." Li Wenxi immediately recalled the situation at that time, "Not just the first time, basically it takes seven or eight times to have no side effects."
"Well, this is a kind of instability." Xu Ying nodded, "Moreover, the coordinates must not only have a starting point and an end point, but the transmission distance cannot be too far. If it is too far, it is likely to go wrong and the transmitter will be lost in the chaotic space. But the distance of the transmission device is very long, and it can even... cross the planet."
"Crossing the planet?!" Li Wenxi was immediately shocked. "So powerful! The aliens have such advanced technology!"
"They are indeed very strong. If they were not strong, how could they cross the galaxy to come here?" Xu Ying sat on the sofa, leaning her head back, "I feel a headache when I think about going against them..."
Then she shook her head violently, sobered up, and explained to Li Wenxi again: "So, stability and long distance are the advantages of the transmission device, but its disadvantages are very obvious, so there is no need to worry too much."
"But that passage is different. That passage was left by my brother. It is a fast passage for the people in the underground world to move to the surface as quickly as possible. It has a strong ability to transport people together. If it is discovered and used in the opposite way after it is opened..."
Xu Ying frowned slightly: "If we are not careful, this place will be destroyed."
"Hmm... Don't worry too much, right? They are capable of installing teleportation devices here. If they really want to launch a large-scale attack, they must have a way, right?"
Xu Ying shook her head: "No, I don't think they are capable of attacking the human base now. Their permanent residence is very far away from here, almost across half the planet, and the expedition is not easy.
The presence of a teleportation device here is most likely related to the invasion of mutant creatures that began a hundred years ago.
My guess is that the group of mutant creatures continued to expand in the underground world for thousands of years, and eventually spread here, found this place, and let some bastard know about it.
So, that bastard sent people to travel a long distance here with a teleportation device, and placed the teleportation device here, and then slowly infiltrated and eroded the underground world. They did this because they had no way to launch a collective attack here. "
"But if they have this method, I'm afraid it will be a disaster..."
The more she talked, the more anxious Xu Ying looked. She stood up suddenly and said, "No, I have to go up and take a look. I can't let my brother open this passage in advance!"
"This..." Li Wenxi also stood up, "Do you want to go up? If we don't open this passage, will Xu Xin and the others have no way to come down?"
"It's not like it will never be opened, but now is not the time to open it." Xu Ying stamped her feet slightly, and a purple-black vortex began to appear below her. "We have to wait until the resources, weapons and equipment below are complete. The current human base has no ability to resist, and even humans themselves can't believe it!"
As she spoke, she fell into the whirlpool and disappeared.
"It's going so fast..." Li Wenxi sighed, sat back on the sofa, and said, "I also want to be able to teleport so conveniently. The teleportation device... can the teleportation device actually travel across planets..."
…
"Don't move." Xu Xin stopped Lou Feier from twisting the stone statue earrings, "Don't trigger the mechanism now."
"Hmm?" Coco called out in confusion on the statue.
"Why? Now that we have found a way, let's open it first."
Although Lou Feier expressed some displeasure, she still took her hands off the stone earrings.
But she had not given up trying to convince Xu Xin: "Since it is similar to your statue, maybe there is a crystal city underneath? If we activate the crystal city below, wouldn't it be stronger? And it would be easier to protect the world tree, right?"
Xu Xin opened his mouth, but ultimately did not tell her the truth.
Although the entrance to the human base in the underground world was just his guess, it should be pretty close.
The fewer people who know about this, the better. Otherwise, if it gets to the ears of alien invaders, it will cause big trouble.
"Hmm?" Coco jumped down from the statue's head and into Xu Xin's arms. She tilted her little head and looked at him, as if asking Xu Xin why he didn't trigger the mechanism.
"This matter is not that simple. Besides, we are now a team. It is not a good habit to cover our heads alone. Some things still need to be discussed with the explorers before taking action."
Xu Xin brought out everyone from the Explorers, and Lou Feier could only accept it helplessly: "Well, it's true that it's a bit dangerous for the two of us to go up. It should be much safer if we bring a few more people."
"Bringing more people would be even worse." Xu Xin rejected it. "We are currently in the stage of protecting the World Tree. How can we let the main force protecting the World Tree do something that we don't know how long it will take?"
"Ah—what should I do?" Lou Feier looked at the statue, then at Xu Xin, "You're not going to move this statue, are you?"
"At least let's wait until the World Tree siege is over." Xu Xin felt that he should play it safe.
Complete the current goal first and protect the World Tree first.
"Um... okay, okay." Lou Fei'er was a little disappointed and looked at the statue anxiously, "Are you really just here to take a look? Okay, then are we going back now?"
"Well, there shouldn't be anything else here..."
"Bing!"
Before Xu Xin finished speaking, Keke suddenly cried out and pointed her little paw in a direction.
Looking in the direction it was pointing, behind the human-faced stone statue, there was a faint...purple-black light emitting
"What's going on?"
Lou Feier immediately flashed and quickly came to the back and looked carefully.
"It's a purple-black vortex! Teleport!" Her voice immediately became serious, "Something is coming out of it!"
She touched her waist with both hands and held two daggers in her hands, ready to strike at any time.
Xu Xin ran over one step later than her and looked towards the source of the purple-black light.
He did not draw his weapon.
Because, for some reason, he felt a little... excited and excited
There was a sudden flash of purple light, and then a figure stepped on the ground.
Lou Feier immediately stood in front of Xu Xin and shouted at the figure, "Who are you? Why are you... Huh?"
When she saw the man's face, the scolding in her mouth suddenly stopped, and was replaced by surprise.
She immediately turned her head and looked at Xu Xin beside her.
He looked again at the girl who was leaning against the stone statue and looked very tired.
"It seems..."
The moment the girl appeared, Xu Xin's eyes flashed with excitement.
He opened his mouth, not knowing what to say for a moment.
This girl...
She was his sister, but... not his sister.
In the end, he could only utter two words softly: "Yingying..."
Xu Ying was very tired.
There have been too many transmissions today.
Moreover, teleporting from the underground world to the ground is not easy even for her, and she also needs to be careful not to be noticed during the teleportation.
So the moment she came up, her head was a little dizzy, and it was only after three seconds that she came to her senses.
Then she heard a familiar voice: "Yingying..."
Her mind cleared up instantly.
Her sight immediately passed Lou Feier and saw the person she was very, very familiar with, Xu Xin.
At this moment, her eyes immediately turned red.
Although she knew that this Xu Xin was not her brother, the face she was tired of seeing and the extremely familiar voice instantly made her chest feel a little choked up.
A person who had lost all her relatives and friends suddenly saw the faces of her closest relatives again. At this moment, she was really a little overwhelmed.
Fortunately, she was also several hundred years old. She took a deep breath, calmed down, and raised the corners of her mouth: "Hi, brother, long time no see, did you miss me?"
Xu Xin looked at Xu Ying, who looked several years older than his real sister, and for a moment he couldn't get used to it: "You... look really grown up."
"Of course. I'm one of the first survivors, and I'm older than you now!" Xu Ying didn't know that Xu Xin had already guessed her identity, and smiled, "Brother, you should call me sister!"
"The previous batch of survivors..." Xu Xin laughed immediately, "Yingying, this should be... the first time we meet, right?"
"Huh?" Xu Ying's eyes widened, "What do you mean... You, you know?"
Xu Xin shook his head helplessly and said, "Have you forgotten that I have seen you in the video? You are almost exactly the same as you are now."
"Ah, this..." Xu Ying was a little embarrassed and scratched her head, "How did you and sister-in-law guess it?"
Lou Feier held Coco and stood aside without saying a word.
"Bing!"
Keke wanted to jump out of Lou Feier's arms, but she held her back and stopped her from running. She whispered, "They are siblings meeting, don't disturb them!"
"Hmm..."
Xu Xin walked up to Xu Ying and said with a smile: "No matter how old you are, your personality hasn't changed much."
“Brother…” Xu Ying’s eyes turned red and she sniffed.
She looked at Xu Xin's overly friendly face and gritted her teeth.
Finally, she couldn't help herself, and suddenly reached out, hugged Xu Xin tightly, and cried: "Brother, you died so tragically!!"
Xu Xin: "I..."
Lou Feier: "Puff..."
Coco: “Hmm…?”