Seeing that Yinni had managed to resist the urge to smoke, Yue Jiuling smiled. She pointed to a vegetable garden next to her and said, "It's been hard for you to resist for so long in the office. Go ahead, just don't smoke in front of me."

"It's okay, I'll go take a puff first and then come back."

He secretly took the cigarette and walked away.

Ya Zi knew that Yin Ni was addicted to smoking. He glanced at Yin Ni, then turned and said, "What should we do? How should we find Huang Jian?"

"Let's go check Huang Jian's house again; maybe we can find some clues."

Yue Jiuling thought for a moment, then kicked a small stone by the roadside, turned around and called to Yinni, "Yinni, let's go, let's go check on Huang Jian's house again."

Hidden quickly finished his cigarette and returned. He said, "When Huang Jian's parents went to the police station, the police thought that Huang Jian had secretly gone out to play without even taking his phone. His parents didn't notice this, so they told Huang Jian's parents to come home and wait. Maybe their son would come back on his own. Now Huang Jian's parents have returned home."

"Let's go check his house again; maybe we'll find some clues."

Ya Zi walked up behind the hidden figure and said, "Let's go, you lead the way."

He nodded and said, "Okay, I think Huang Jian's parents are probably still awake, because they are quite worried about their son after hearing that his classmate was murdered."

Yue Jiuling followed Yinni to a slightly old house. Most of the houses here were not very tall, and Huang Jian's family lived on the third floor.

When they knocked on the door again, it was Huang Jian's mother who opened it. She was an ordinary woman who opened the door with a worried look on her face when she heard Yin Ni's voice.

"It's you, officer! What brings you back again?"

Because they were handling a case, the staff in the management office all put on police vests, so it's perfectly acceptable for them to be called police officers now.

He stealthily entered Huang Jian's house and said to the two parents, "Hello, these two are my colleagues. Because Huang Jian's disappearance is so strange, we want to check his room."

"Okay, actually I'm also very worried about my son. Please come in."

Huang Jian's mother opened the door and let them into Huang Jian's room. Huang Jian's father said, "My child is usually quite obedient. He would tell us where he was going. This is the first time I've seen him leave without saying a word, so we are quite worried. But there isn't enough time to call the police, which is very distressing for us."

Upon hearing this, Yue Jiuling replied, "Parents, we understand your feelings. Huang Jian's deskmate just died, and Huang Jian has gone missing. We are also very eager to find him. Don't worry, we will do our best to find Huang Jian."

"Oh, thank you for your help."

According to Huang Jian's parents, Huang Jian behaved normally that day; he ate, slept, and used his phone without any unusual behavior, so they found his disappearance very strange. Furthermore, the couple had been in the living room all night; if Huang Jian had wanted to go out, they would have noticed, as the living room is the only way out. However, they didn't see him leave the house.

Huang Jian lives on the third floor. There are no security bars on the windows of his room. It's not that Huang Jian can't go out the window, but there is a patch of weeds below the window. There may be puddles hidden in the weeds. If he goes down there, he will definitely step on the weeds and leave marks where the weeds have been crushed.

However, when Yue Jiuling jumped down from the window to check, she found no signs of the weeds being crushed, which proved that Huang Jian did not jump down from the window.

Huang Jian's room was fairly tidy. The sheets and pillows were scattered around, but they were all on the bed. The desk was also neat and clean. Huang Jian's mother said that she had just asked Huang Jian to tidy up his room in the afternoon, so the room was quite clean.

The three of them didn't find anything suspicious in Huang Jian's room, so they decided to rummage through the desk. Ya Zi walked to the bedside and tried to lift the blanket, but accidentally stepped under the bed and found that he had stepped on a pair of slippers.

Those slippers were ordinary men's slippers, the kind you can buy in any store. They were blue and size 43.