(Foreword)

Cold ice can't break the water, and dead wood can meet spring again.

(Text)

"According to you, that intruder will definitely do everything in his power to sabotage our plan to attack Yiling Pass, so do you know where that person will be in the Strange Array now, have we seen it?" Lin Yun asked.

"This man is far away, in front of him, am I right? Professor Twilight, oh no, 'mystery man' or you are an interloper?" I looked at Professor Twilight.

"Me? Am I the interloper? Cheng Yin, I have to say that your joke is a bit big, how can I be an intruder? Do you know who I am? Twilight's reaction was intense.

"Cheng Yin, you didn't find out, he is Professor Dujiang, he came to the AEF Research Center with us to see the research meeting, how could it be the intruder, and Professor Due Jiang has been with me since the exhibition hall, and we also saw the intruder walking through the exhibition hall with a gun, I can prove that Professor Due Jiang will not be the intruder with a gun." Professor Wu's proof sounds plausible.

"Cheng Yin, is there a mistake? Professor Twilight is one of the mentors of the research group, although his words are a little impulsive after coming to the strange array, but it should not be the intruder, I think there must be something wrong. Lin Yun also wants to reconsider.

"This ...... How can this be said more and more...... It's outrageous. What does Professor Twilight ............ How could it be...... The intruder? It's ridiculous...... Ridiculous. Hu said something in De Li.

I felt like I was on the opposite side of everybody all at once, and everyone questioned my point of view, but I knew that what I was saying was the truth.

My mind came up with the scene not long ago when Cui Li and I were still attending a class.

"Cui Li, listen carefully!! It's important to memorize every word in class. Professor Wu took a black marker pen and wrote a large number of incomprehensible theorems of physics on the glass plate. It's as tedious as flipping through a dictionary. I tried hard to glance at the text on the glass plate, and then I gave up, and the dense text on the glass plate was often accompanied by Professor Wu's indescribable graphics, and finally combined with Professor Wu's explanation, I simply refused to listen carefully for more than three minutes.

"Your usual efforts will be rewarded, as long as you keep studying hard, the door of the physics world will always be open to you. At that time, you will like the subject of Zhang, and you will feel that there are endless mysteries.

"Okay, but I'm really sleepy now, can Cui Li help me copy down the notes on the glass plate? I'm so sleepy..."I felt like I was going to fall asleep as I said this.

"Cheng Yin, I'm going to talk about it, how to copy notes, and I copied it last time, this time it's you." Cui Li placed the pen in front of me.

"Okay, okay." I picked up the pen and looked intently at the glass plate again. But again, my upper and lower eyelids have to come together.

It's a great way to sleep, and I'm sure you'll fall asleep after just a few minutes. I barely wrote in my notebook, but at this moment, suddenly a voice broke the silence of the class.

"Professor Wu, are these theorems of physics necessarily correct?" The person who spoke was a man, who didn't look very big, about the same age as us, maybe younger than us. Blonde hair, a bit of a foreigner, but fluent in Chinese.

"Of course, science will always be questioned a lot, especially before the formation of a discipline, all theorems are repeatedly studied and confirmed, but science is never afraid of being questioned, and it is questioning that makes science develop faster and faster." Professor Wu replied very passionately.

"If everyone thinks your research is just a mistake, will you continue to do it?" The blond-haired teenager continued to ask.

"I understand what you mean, of course I will work hard to study it, even if it is a mistake, I will study and explore it myself." Professor Wu said.

"Human beings are always so attached to what they think is right, but if it's wrong in the first place, why are they so obsessed?" The blond man continued.

"Hope !!"

Apparently all the students in the classroom were looking for the source of this voice, and of course I already knew who this answer was coming from, except for me.

"Hope?" It seemed that the blonde teenager had his eyes on me.

"That's right, it's hope, and if what I'm doing is significant, then we should continue, and only then can we protect our hope." I replied.

"Cheng Yin, your answer is wonderful, but I hope your homework can be as wonderful as your answer." Professor Wu's praise is still different.

"You're Cheng Yin? Sure enough, it's better to see than to hear. The blonde boy said with a smile.

"Hey, Cheng Yin." Cui Li said in a very soft voice, "Do you know that foreigner?" He doesn't seem to be from our class, and I've never met this guy before. ”

"I don't know." I searched hard in my brain, but I couldn't find anything. The final conclusion was that I didn't know the blond boy at all.

"Hello, do I know you?" I asked, confused.

"It's so important to know each other or not, the important thing is that we know each other now." The blonde boy was still smiling.

"Cheng Yin, I'm still in class, if you have any questions, you can wait until the end of class to continue the discussion." Professor Wu said with some sternness.

But just after the class, the blonde boy quickly disappeared from my eyes, and the blonde boy was never seen in Professor Wu's class again.

My thoughts returned, and the doubts in front of me still did not stop, and all the voices were asking me questions.

"Cheng Yin, why don't you speak?" Cui Li asked.

"I'm just thinking about something, it's nothing." I replied.

"What's wrong? Is there nothing to say, or is it just random speculation, and there is no evidence to arbitrarily conclude the whole thing? If I were the intruder, would you still be standing here? Twilight's laughter was a bit harsh.

"Dujiang, Cheng Yin's classmates are just guessing, don't take it too seriously, let's continue to study the countermeasures to attack Yiling Pass" Professor Wu tried his best to change the topic.

"Professor Wu, what I said is not wrong, Professor Dujiang is the intruder. And are you really Professor Twilight? I looked coldly at the man in front of me.

(End of chapter)