May 15, 9 p.m

After the last evening self-study class, students who do not live on campus can go home.

Zhang Yichi didn't carry a schoolbag when he went, and when he came back, he was still relaxed, bought a pancake outside the school gate, and walked to the community.

When entering the community and turning a corner and walking straight to the unit where he was located, Zhang Yichi hesitated, and then walked over casually.

Li Xiangnian saw Zhang Yichi coming over, threw the half-smoked cigarette on the ground and stepped on it: "Remember me." ”

"Yes. How? Lu Tao, do you have any news? Zhang Yichi still asked in advance, making it look like he cared about Lu Tao very much. At the same time, he glanced at the ground, there were four or five cigarette butts on the ground, and the police must have been waiting here for a while.

So...... What is he looking for himself?

"Nope." Li Xiangnian always had a calm face, looking like a serious old man, "I came to you so late to ask you something more, because my investigation here has reached an impasse." ”

"What's wrong?" Zhang Yichi roughly guessed what the police were looking for him for.

"Is it convenient to go in and talk?" Li Xiangnian asked.

"Of course." Zhang Yichi swept past Li Xiangnian and took the lead in entering the corridor, and Li Xiangnian followed closely behind him.

Li Xiangnian put his hands in the pockets of his black windbreaker: "On what floor?" ”

"Fifth floor." Zhang Yichi said that he feels a little uncomfortable now. It was a psychological discomfort that a police officer was behind him, which gave him a feeling that his secrets had been revealed and left to be seen.

"Huh." Soon came to the fifth floor, Zhang Yichi carried a pancake bag in one hand and opened the security door with the other.

After the two entered, Zhang Yichi walked directly forward and turned on the light in the living room: "No need to change your shoes." ”

Li Xiangnian walked silently to the center of the living room, perhaps because of his professional habits, he first looked around the living room, and then fixed his gaze on the coffee table: "Didn't clean up?" ”

"Ah, I didn't have time." Zhang Yichi scratched his head and sat on the sofa, "Generally, I'm too lazy to clean up, please sit." ”

Li Xiangnian sat down: "Are you hungry now?" If you're hungry, you eat first, and then you'll talk about it after eating, I'm not in a hurry. ”

"It's okay, I'm not in a hurry, just ask." Of course, Zhang Yichi can't eat with peace of mind in front of the police, so it's better to deal with it as soon as possible.

"That's good." Li Xiangnian didn't shirk either, and took out his notebook again, "Have you been to Yonghe Community?" ”

Zhang Yichi's heart tightened, he finished changing his clothes in the woods near Yonghe Community last night: "I ...... I should have been there, but I don't remember it. ”

"Has Lu Tao been there?" Li Xiangnian asked again.

"He? I do not know. Zhang Yichi shook his head. Where Li Xiangnian couldn't see, he wiped the sweat from his palms on the sofa.

Li Xiangnian was silent for a long time, raised his head, and looked at Zhang Yichi with a pair of rather sharp eyes: "Hmm...... Ask you a question. ”

"You say." Under the eyes of the police, the more Zhang Yichi tried to disguise, the more stiff his body became.

"Look at this." Li Xiangnian turned the page of his notebook and pointed it to Zhang Yichi, "This is your community, this is the road at the main gate, this is the overpass, this is the square under construction next to your community, this is the Yonghe community, this is the woods near the Yonghe community, and the road is on the edge of the forest." ”

"Did you draw a map?" Zhang Yichi asked in surprise, "Is this...... This line ...... Is it Lu Tao's route? ”

"That's right." Li Xiangnian said in a deep voice, and then he pointed to the circle around the route, "These are monitoring probes." ”

Zhang Yichi listened to Li Xiangnian silently, and he was already making waves in his heart. Because the route drawn by the police is exactly the same as the route he took last night.

"When Lu Tao is pursued here--" Li Xiangnian pointed his index finger at the end of the route, "the surveillance will no longer find any trace of Lu Tao." ”

"Could it be that he didn't go from the surveillance?" Zhang Yichi held his chin in one hand and thought that he wanted to mislead the police.

"No, it won't." Li Xiangnian clicked the five circles at the end of the route, "There is a monitoring probe every other section of the road, as long as Lu Tao walks out of the woods and comes to the sidewalk, he will definitely be seen by these four monitors." And if he didn't go through the woods, but changed his mind and returned the same way, there was also a surveillance camera behind him to ensure that he could be seen. ”

"There will always be blind spots in surveillance, right?" Zhang Yichi didn't know what to say.

Li Xiangnian shook his head and said: "There are indeed blind spots, but the blind spots are relatively remote places." Lu Tao is not going to do anything bad, or to be a thief, he doesn't need to take the right road and walk against the wall. Unless, he's deliberately trying to avoid surveillance. ”

As soon as he heard the police deduce this point of view, Zhang Yichi felt that his heart was clenched by a hand, and he hurriedly spoke, trying to divert the police's train of thought: "Then do you want to refer to my opinion?" ”

Li Xiangnian glanced at Zhang Yichi and snorted.

Zhang Yichi's brain was running wildly, and it took a minute or two before he said, "Will he enter the community?" ”

"There was no main entrance to the neighborhood in that area, and if he wanted to enter from there, he had to climb over the fence." Li Xiangnian said.

"What if he thinks that the main gate will take a long detour and it will be easier to turn over? Or maybe he really wants to enter the Yonghe community, but the community does not allow people who are not from the community to enter. Zhang Yichi just made up a set of ideas that didn't make sense.

But Li Xiangnian sighed: "Sherlock Holmes said that when you eliminate all the impossible, even if the remaining one is incredible, it is the only possibility." ”

"Indeed......" Zhang Yichi felt beads of sweat oozing from his forehead.

"It's a bit illogical for you, but it's the only possibility in the current deadlock." Li Xiangnian stared at the Yonghe community drawn on the notebook, "There is surveillance in the high-end community, if he turns in, he will be seen." I'll take a look at the monitoring room there in a moment. ”

"It's so late......" Zhang Yichi originally thought that even if he had such a new idea, the police would have to go again tomorrow, but he didn't expect this policeman to be surprisingly dedicated.

Li Xiangnian pursed his lips and showed a not-so-obvious smile: "It's not too late - for us police." ”

“…… Okay, I hope to get Lu Tao back as soon as possible. Zhang Yichi said.

"Yes. Ah, let me ask one last question, do you have any classmates in your class, or do Lu Tao have friends who live in Yonghe Community? Li Xiangnian asked.

"There should be...... I don't know much about this, but you can ask your classmates tomorrow. Zhang Yichi said.

"Okay, that's pretty much fine." Li Xiangnian stood up, walked to the door, and suddenly took a deep breath, "It's very fragrant, hurry up and eat." I won't bother anymore and take my leave. With that, he left Zhang Yichi's home.

Zhang Yichi closed the security door, staggered a few steps, sat on the sofa, and picked up the still warm pancakes, but he had no appetite at all. He had a strong instinct that this cop would soon break the deadlock.