This should be the most correct inference, and the others nodded suddenly after hearing this, but the prince looked at me with a blank slurp, and the rosary in his hand stopped.

"Am I wrong?" Judging by his expression, he probably didn't fully agree with me.

"It's not wrong, if your inference is correct, then there is something wrong with the process." The prince replied calmly.

"Where?" I asked, surprised.

"Is the bell of the bell tower ringing on the hour?" The prince didn't answer me directly, but asked Nangong Yi next to him.

"Yes, that's how the clock tower was designed." Nangong Yi replied with certainty.

"Since it rings on the hour, the interval in between should be an hour, which means that when Nie Bingwan heard the bell, an hour had passed." The prince looked at me again and said unhurriedly. "But if I'm not mistaken, the suicide video left by Nie Bingwan was displayed at a time, and when she unscrewed the ceiling fan switch, the time displayed on the video was 1:55."

"......" I was stunned for a moment, and then I remembered the time that the prince said, it was true, the time on the video when Nie Bingwan unscrewed the ceiling fan switch was 1:55 minutes, because of the misleading tattoo numbers, I didn't pay too much attention to this time, but now that I think about it, the existence of this time seems extremely unreasonable.

"yes, why is there a five-minute difference in time on the video?" Yun Duruo pursed his lips and said suspiciously.

"It stands to reason that the time on the video should coincide with the time of the bell tower, and even if there is a discrepancy, it is impossible to be as long as five minutes." Nangong Yi took a few steps back and forth and muttered to herself. "Could it be that Nie Bingwan's mobile phone time setting is five minutes slower......

"Why can't it be that the clock tower is five minutes faster?" Han Yu made another point.

"This is impossible, the reason why the bell tower of Hede Medical College got its name is because of the accuracy of the time, except for the time conversion between summer and winter every year, the clock will be stopped, repaired, exchanged, and tuned by the clock, and the time of the clock in other times is not the slightest error." Nangong Yi denied Han Yu's words with great certainty.

"No!" I slowly raised my head and said excitedly. "The time on Nie Bingwan's mobile phone is not wrong, and the time of the bell tower is not wrong, it's just that someone has adjusted the time of the bell tower faster!"

"Speed up the clock tower......" Yun Duruo asked curiously, looking at me in surprise. Why? ”

I looked at the bell tower outside the window, believing that if someone in the bell tower could also see everything in this room, if I guessed correctly that night, Li Hejun must have watched everything that happened in the 403 dormitory from the bell tower, he was worried that something would go wrong and ruin his plan.

It should be that Nie Bingwan completed everything before the next node was triggered in advance, so Nie Bingwan would stand motionless next to the switch, but her move would be recorded by the mobile phone video, which was obviously incompatible with what happened before, Li Hejun was worried that it would attract the attention and suspicion of others, so he ......

"Therefore, Li Hejun set the time of the bell tower faster, so as to trigger the node in Nie Bingwan's subconscious, so that she could continue to finish what she had not done." Han Yu also understood the whole process and took my words.

This is the most complete process of the whole case that happened in the 403 dormitory, I didn't expect that it would be a few months before we learned the truth, which should be a very happy thing, but I always had some doubts in my heart, and I looked at the clock tower outside the window for a long time.

"Is there anything else you haven't figured out?" Yun Duruo walked over and asked.

"If Li Hejun was on the bell tower opposite on the night of the crime, he adjusted the time of the clock......" I lit a cigarette and took a deep breath and said thoughtfully. Then his fingerprints will be kept on it. ”

"Why do you care about this?" Han Yu asked suspiciously.

"I just want to make sure if Li Hejun is really what we deduced."

"Li Hejun admitted everything in person at that time, do you even doubt this?" Yun Duruo asked me puzzled.

"It's not a suspicion, it's just ...... Although this case has been solved, there are still many mysteries that we have not solved, and I just want to confirm it. ”

"You are really dedicated, it seems that you are not willing to give up in the Yellow River, I'll go over and take a look." Although Yun Duruo said this, seeing that her expression was more or less the same as mine, I wanted to confirm it in the end.

Nangong Yi and Yun Duruo went back to the bell tower to investigate, I walked to the window and looked at the clock tower in the distance, and suddenly found that this room seemed to be different from other places, I gently touched the desktop with my hand, there was no dust on it, and I turned my attention back to this dormitory.

From the moment I first came in, I felt that there was something different from the outside, but I had been focusing on the bell tower and ignoring everything in this room, and I looked around and found that most of the things in the dormitory were empty, but there was a cabinet and a bed left.

The bed is clean sheets, and the wardrobe is neatly placed with clothes, at the door are a few pairs of worn shoes, this building Jiang Xinyu has announced that it is temporarily suspended, and when we came up, it was covered with dust everywhere, which shows that no one has been here for a long time.

But this room is obviously occupied by someone here, you must know that this is the room where the murder occurred, and four people died at one time, no one would want to live in such a room.

I suddenly remembered that shortly after the case was closed, I had come back to return some files and materials, and I also passed by here, and I found that someone had lit incense and burned coins here, perhaps because of the closure of the case, and I didn't think much about it at the time.

But I never thought that there would be someone who would dare to live in this room, just thinking of this, there were heavy footsteps and panting breathing outside, and we turned around and saw Hua Guanwen holding on to the door panting.

"I'm really sorry, I'm busy with the school's anniversary, I just went back and heard that you were looking for me, is there anything I can do to help?"

Hua Guanwen is as polite as ever, I have always had a good impression of him, I can't see the slightest shelf in him, and the way he laughs gives people a deep affinity.

"This dormitory ......," I asked casually with a smile as I looked back at the furnishings in the room. Who lives here? ”

"Oh, it's Wen Jike, the administrator of the basement ward of the mental hospital." Hua Guanwen told us without thinking. "Dean Jiang of this building is temporarily vacant, but it can't be done if no one takes care of it, so let Wen Jike live in it, and by the way, he can be responsible for taking care of it."

"Wen Jike ......" I repeated this name in my mouth once, I was not very impressed with him, but I came into contact once or twice when investigating the case, and I remember that this person walked a little lame, which should be caused by a leg disease.

He should be in his fifties, his gray hair and rickety body make him look extraordinarily old, I remember Wen Jike was a mute, but I feel that he should be a person who has experienced a lot of things, and every wrinkle on his face is very profound.

But what I still remember about him is that his eyes are bright and clear, and even though he looks old, those eyes are full of youth.

"Hey, you said that there are so many dormitories in this building, he is alone, he can choose whatever he wants, and I don't know what he thinks." Hua Guanwen should have seen the confusion on my face, sighed and said. "I just chose this one, I guess I've been in medical school for a long time, and he's bold enough, so it's me...... Hehe, I really don't dare to live in this room alone. ”

I just wanted to open my mouth to ask something else, when I saw Yun Duruo and Nangong Yi walking back quickly, and I subconsciously glanced at them, implying that I should not disclose the discovery of the bell tower in front of Hua Guanwen.

The two of them understood, and Yun Duruo asked Hua Guanwen with a smile.

"Vice President Hua, we went to visit the bell tower just now, and I heard that this bell tower will not be adjusted except for the time conversion between summer and winter every year, when the clock is stopped, repaired and replaced parts, and the tuning of the bell?"

"Of course not, this bell tower is named because it is accurate, no one is allowed to climb the bell tower except for annual maintenance, you are lucky today, because it is open to the public because of the anniversary." Hua Guanwen nodded and replied in the affirmative.

"Then it must be a lot of work to repair such a large clock every year, right?" Nangong Yi also asked with a smile.

"Of course, the last repair was on November 1st, and you don't see how much manpower was spent at that time, and the time was tight, and all the maintenance work had to be done in one day." Hua Guanwen said.

The two of them sang and asked about the bell tower, I guess there must be some reason, and when they don't ask any more questions, Hua Guanwen will look at us.

"Don't stand here, come to my office and talk about something."

After going downstairs, Hua Guanwen walked in front, and Yun Duruo and Nangong Yi grabbed me from behind, looking at their expressions with some excitement and excitement.

"What's wrong? What did you find? I asked, confused.

"We went to the clock tower just now to investigate, because the clock tower maintenance has lubricated the clock hands with lubricating oil, and now it has dried up, but we found fingerprints on it." Nangong Yi said.

"That's good, once Li Hejun's fingerprints are compared, if they are the same, then even any doubts in my heart will be eliminated."

"There are three sets of fingerprints, and it can be determined that they do not belong to the same person." Yun Duruo said

"Three groups?!" I was stunned and looked at Yun Duruo in surprise. "How can there be three groups?"

As soon as I asked, I immediately understood the meaning of the questions that the two of them asked Hua Guanwen before, the bell tower was repaired on the first of November, and the lubricant on the clock parts should be the last process, and Hua Guanwen also said that in order to ensure the accuracy of the clock when it leaves, no one is allowed to go up the bell tower, and the time for the lubricating oil to dry in the sun is two to three days.

And the fingerprints will slowly disappear with the temperature and weather, it is estimated that even Li Hejun did not expect that the sky net is magnificent and not leaky, when he dials the clock, his fingerprints will be left on the lubricating oil that has not been applied for a long time, and with the solidification of the lubricating oil, his fingerprints are also preserved.

But why are there three different sets of fingerprints?