9:00 pm at the time of Beijing.

Sheraton Presidential Suite.

Standing next to the floor-to-ceiling windows, Lu Zhou received a call from across the Pacific Ocean.

"Your sister is safe."

"ok, I know, thank you."

"You're welcome," Qin Yue smiled at the other end of the phone. "Yes, she is living in a student apartment... Or I will give your house to her, just as I have plans to rent near the school. A slightly smaller apartment."

When Lu Zhou left Princeton to return home, he handed over the small villa in the nearby town and the key of the Ford Mustang to Qin Yue, so that he could pay a property tax for himself every year.

After all, the house is getting older and older. If you don’t live for a long time, you can’t live. Especially in the northern state of New Jersey, if there is no person in the house in winter, it is easy to cause the accident of water pipe cracking and crushing the roof.

Although it is estimated that there is no chance to go back and look at it, but the house and the fireplace inside, Lu Zhou still likes it.

Lu Zhou shook his head and said, "No, I mentioned this to her at this time of the New Year. She refused if she didn't want to think about it. I thought about it later. It is not a downtown area, she is a girl. I don't feel relieved to live in such a big house. If you don't plan to live, ask me if Vera or Prince's other professors are not interested."

In fact, Lu’s thoughts can be felt in the mind of Xiao Zhou.

On the one hand, she is very grateful that she has been spreading her wings since she was a child, and she relies on this feeling, but on the other hand, her character is very similar to her own. She is not willing to trouble others. The type, eager to live an independent life, eager to one day no longer rely on oneself, no longer a small bag of their own, or even help themselves in turn...

In fact, Lu Zhou wants to say that he does not mind being dependent on her, and will not regard this dependence as a burden.

After all, they are family members.

The feelings between family members are themselves maintained in a mutual dependence...

Qin Yue smiled and said: "I didn't say that I didn't plan to live. I can rent such a big house for $3,000 a year. This kind of good thing is not found in North America. I just said that if your sister needs it, I went to the house myself. But you said so. [.] It is not convenient for a girl to live in such a remote place."

Although the student accommodation in Princeton is low in cost, it is close to the campus facilities and safe and secure. The Qin Yue, who lives in Xiaoxiao, remembers that it is still a double apartment. If there is a roommate, it can be integrated into campus life more quickly.

After simply asking about Xiao Xiao’s situation there, Lu Zhou temporarily put her things aside and chatted with her former students.

"How? Is life still accustomed to your life?"

Qin Yue smiled and replied: "I have always been used to it. It is enough for me to have a place to concentrate on research. To say that the only thing you are not used to is that you are not there, you can’t get through the problem. I have taken it here."

Lu Zhou: "You are already a professor. I still want to learn from me. I should also ponder over it. What do you study recently?"

"The Hualin issue in the additive number theory...: When it comes to this matter, Qin Yue couldn't help but sigh. "This stuff thinks that I am big every day! Sometimes I feel that there are few people who study the theory of number theory. It is often justified. You often encounter a problem that seems to be purely prime. It is an algebraic geometry problem. However, the method of algebraic geometry is not solved by the method of algebraic geometry. Finally, it is necessary to introduce representation theory, p-adi theory, etc.... Of course, it also includes your group construction method. ”

"This is actually a good thing," Lu Zhou said with a smile. "Isn't our science so advanced?"

Qin Yue said helplessly: "It is true that this is true, but it is not very friendly to those who study these problems. Sometimes I can't help but think that if there is a way, it can be quickly obtained in a qualitative sense. It’s good to solve the problem we want to solve....”

Lu Zhou: "I am afraid this is not a category of mathematics. This is the category of metaphysics."

Qin Yue: "Maybe."

The topic went here and suddenly silenced for a while.

After chatting for so long, Qin Yue always felt that Lu Zhou had something to say, but he might have been around the circle because he didn’t know how to open it.

Just when he hesitated to take the initiative to break this point, the silent Lu Zhou suddenly turned abruptly.

"Wella she... is it alright?"

Not surprisingly, Qin Yue’s heart sighed with a sigh, and then sighed and said.

"I asked you for help, but I haven't heard anything useful... She is not very willing to say her own situation, and she doesn't know if she found something. She now intends to hide from me. Later I tried. I asked the Molina lecturer who studied Riemann's conjecture with her, but she didn't want to say too much."

Upon hearing this sentence, Lu Zhou was silent for a while.

"……thank you, I know now."

Suddenly, he continued.

"If she really doesn't plan to say anything, don't force her."

Qin Yue: "Are you going to hang?"

"Well, if there is nothing." Looking at the wall clock on the wall, Lu Zhou continued. "After all, I am not too late."

After hesitating for a moment, Qin Yue asked: "Can I ask you a question? I used to ask about it before, it is about"

Lu Zhou: "...if it is an academic problem, even if asked."

Qin Yue, who was interrupted, said with a slight sigh: "That's right, I still don't ask..."

......

Sitting in the next room, Wang Peng, who had just shaved his beard, was sitting on the edge of the bed and checked the equipment in the suitcase according to the usual practice.

Just then, the corridor outside the door faintly came the footsteps.

Hearing from the footsteps, who was the person who came back and threw the equipment back into the suitcase, he stood up and walked to the entrance. Almost the knock on the door just rang, he took the door handle and opened the door.

"what's up?"

Standing at the door, Lu Zhou said casually.

"Drinking? I treat you."

From the expression on Lu Zhou’s face, it seems to be something. Wang Peng said after a few seconds of silence: “You can only smoke and drink during working hours, but if you want to drink, I can accompany you.”

"How come with the law?"

Wang Peng replied straightly: "Look at you, wait for you to get drunk and take you back."

Lu Zhou smiled and shook his head.

"Drunk? I? Got it..."

Looking at Lu Zhou, who turned and walked toward the elevator, Wang Peng didn't say anything more. He closed the door and then followed him to the elevator. He even reached for the button on the floor where the bar was.

Upon seeing it, Lu Zhou glanced at him and said nothing.

Did not say a word along the way, went to the Lu Zhou in front of the bar, sat on the high stool, and then looked at the bartender behind the bar.

"Cake a glass of whisky."

"Slightly wait."

Looking at the bartender's hand and the unicorn arm, Wang Peng vaguely felt that Lu Zhou would probably drink a lot tonight, so after a moment of silence, he reminded him next to him.

"Tomorrow is the opening ceremony, I suggest you still drink less."

As a result, what he did not expect was that Lu Zhou, who had always been persuaded, was changed to the normal state.

"Don't worry."

I took the cup from the bartender's hand and rudely dropped the such thing as Lu Zhou. I didn't say a word, so I drank a cup.

Specifically, when it stopped, Lu Zhou has not remembered clearly.

When he returned to God, it was already the next morning...