"Brother Cheng, this is my home."

The speed of the hovering car is very fast, tens of kilometers away, and it takes less than five minutes to arrive.

"Brother Cheng, what to drink?"

Li Junfei politely invited Xu Cheng into his home.

"Whatever!"

Xu Cheng didn't know what drinks were in the future world.

"Then drink some alien juice."

The alien beast juice in Li Junfei's mouth is actually a kind of drink juice made from the alien beast inner pill, which can not only strengthen the body, but also improve a trace of cultivation.

However, although it can improve your cultivation, the effect is not very obvious, and there are not many cultivation improvements, but even if it is, this kind of drink will be very expensive in the future world.

In the refrigerator at Li Junfei's house, there are only two bottles of alien beast juice, and he is usually reluctant to drink it at all, but this time he specially took it out to entertain Xu Cheng.

Li Junfei is sincerely grateful to Xu Cheng, if it weren't for Xu Cheng's righteous action, his sister might have passed away due to lack of medical expenses, which led to the deterioration of her condition.

"It tastes weird!"

Xu Cheng tasted a sip of the strange beast juice and felt that the taste was a little weird, but although the taste was a little strange, it was very comfortable to drink, as if there was a warm current flowing in his body.

"The taste is indeed a little weird, and I am a little unaccustomed to drinking."

Li Junfei said with a smile.

"Do you know how to seal a space-time tunnel?"

Xu Cheng suddenly changed his words and asked about sealing the space-time tunnel.

"Sealing the space-time tunnel? I really don't know about this, but Brother Cheng, you can go to the virtual library and look it up, you should be able to find the answer you want. ”

Li Junfei suggested.

"Virtual library?"

Xu Cheng wondered.

"Brother Cheng, I really suspect that you are an alien, and you don't even know about the virtual library, which is one of the most sacred places for our human race, which collects all the knowledge of human beings from the end of antiquity to the present, no matter what you want to know, you can find the answer in the virtual library."

Li Junfei's eyes were a little strange when he looked at Xu Cheng, if it weren't for the fact that the legendary world could only be logged in by humans, and there was a device to detect aliens on the earth, Li Junfei would really wonder if Xu Cheng was an alien.

In fact, as early as hundreds of years ago, there were aliens who infiltrated the earth to disguise themselves as humans, which caused a huge sensation at the time, and in order to prevent this situation from happening again, the federal government has developed a lot of equipment to detect aliens.

That is to say, as soon as aliens enter the earth, the detection equipment will immediately sound an alarm, which also shows that human beings attach importance to the home planet of the earth.

"How do I access the virtual library?"

Xu Cheng is really a little weak-hearted, although he is not an alien, but he is a human in the last ancient period, if this is known by the people of the future world, I don't know how much of a sensation it will cause.

"It's very simple, just use the brain to link the virtual library."

Li Junfei said.

"Then I'll give it a try."

Xu Cheng is also a little curious about the virtual library.

"Kim, I'm going to enter the virtual library."

Xu Cheng communicates with Xiao Jin in his mind.

"I'm sorry, master, you can't enter the virtual library because you don't have identity credentials."

Kim said.

"Didn't you say you could apply for an identity credential, apply for me now."

In order to be able to enter the virtual library, Xu Cheng can't care so much now.

"I'll help you apply now."

Xiaojin linked to the network of the future world and directly helped Xu Cheng apply for identity credentials on the network.

"How long will it take to be in Xucheng?"

Xu Cheng took the time to take a look at the login just now, and found that the energy consumption was very fast, and if he stayed in the future world for two or three hours at most, the energy stored in the login device would be exhausted.

"The review takes about an hour."

Applying for an identity certificate naturally does not mean that you can apply for it immediately, and it also needs to be reviewed by the federal population management department, but because the brain will only recognize the main human, it is easy to apply for an identity certificate with the brain, and it will basically pass.

"How's your sister?"

Xu Cheng could still afford to wait for an hour, and Xu Cheng asked about Li Junfei's sister's condition.

"The condition has stabilized, and she is still hospitalized in the medical center, and when her condition is slightly better, I will take her to thank you in person, if it weren't for Brother Cheng, she would not have survived this time."

At that time, Li Junfei's sister was critically ill, and there was a danger of life at any time, at that time, Li Junfei borrowed money everywhere, but unfortunately few people lent him, if Xu Cheng hadn't given him more than five million gold coins, Li Junfei might not have been able to make up the medical expenses.

"It's okay."

Xu Cheng didn't care much about whether Li Junfei would bring his sister to thank him, and then under Xu Cheng's intentional or unintentional inquiry, Li Junfei told Xu Cheng a lot about the future world.

"Master, your ID application has been successful."

An hour passed in the blink of an eye, and Xu Cheng's identity credential application was successful.

"I'll go to the virtual library first."

Xu Cheng said.

"Okay, Brother Cheng, go to my bedroom, I'll prepare lunch."

Since the virtual library is called a virtual library, it is naturally in the virtual world, which is similar to the world of virtual game legends.

"This is the virtual library?"

When Xu Cheng logged into the virtual library, he found himself in a huge library, the whole library was endless, and there were all kinds of bookshelves everywhere, and the shelves were full of all kinds of books.

"Kim, help me search for books about sealing or closing the space-time tunnel."

With so many bookshelves and books, if Xu Cheng looks for it himself, he doesn't know what year or month he will find it, but if he asks Xiaojin to search, it will be simple.

"Master, books on sealing and closing space-time tunnels, shelf numbers 705, 402, 1578, 245, 1532...... And so on the shelves. ”

Xiao Jin quickly helped Xu Cheng find it.

"So much?"

Xiao Jin said hundreds of bookshelf numbers in one breath, and each bookshelf does not have more than one book, when does this have to be seen, you must know that Xu Cheng can only stay in the future world for two or three hours, how can he have so much time to read books here.

"Keep sifting through me, I want the kind of books that record how to completely close the space-time tunnel."

Xu Cheng said.

"Master, there are only three bookshelves about the books that record the closure of the space-time tunnel, and there are four books in total, namely "The Legend of the Sword Immortal", "The History of the Great Rebellion of Alien Beasts", "The History of the Ancient History" and "The Doctrine of Time and Space".

Jin searched the library and found only four books about closing the space-time tunnel.

"The Legend of the Sword Immortal?"

After Xu Cheng heard the name of this book, he couldn't help but think of the Sword Immortal Sage, one of the three great sages of the human race.