The Courtyard House: The story begins with He Yuzhu beating up the White Widow.

Meanwhile, He Yuzhu wasn't idle either. He rode his bicycle to the outside of the branch office's residential compound. Finding a secluded spot, He Yuzhu released his divine sense to cover the entire compound. To be honest, He Yuzhu had already scanned the entire eastern part of the city with his divine sense over the years, except for this residential compound. It wasn't too late to catch up today.

He Yuzhu quickly located Zhao Gu's house. Zhao Gu's wife had just returned from grocery shopping, and the children were at school. However, upon seeing the color displayed on Zhao Gu's wife's profile, He Yuzhu couldn't help but laugh: "They say a woman follows her husband wherever he goes, even if she marries a monkey. A spy's wife is a spy too." He Yuzhu thoroughly searched the entire tenement building, discovering something amiss not only in Zhao Gu's house but also in another. However, he didn't find a radio in Zhao Gu's house, but he did find one in the other apartment.

After careful consideration, He Yuzhu decided to tell Zhang Qiang about it. Perhaps the two families had some connection. Having made up his mind, He Yuzhu rode away on his bicycle. Twenty minutes later, He Yuzhu arrived at the branch office. After greeting the guard at the gate, He Yuzhu entered the branch office, parked his bicycle, and was just about to go to Zhang Qiang's office when he saw Zhang Qiang coming out of the office building.

Zhang Qiang had already spotted He Yuzhu by then. He quickly walked to the edge of the parking shed and asked, "What are you doing here again?! Did something happen again?!"

He Yuzhu said, "I just went to the branch office's staff quarters. Zhao Gu's wife also has problems. Also, in the second to last room on the west side of the third floor of the staff quarters, I don't know whose house it is, that family also has problems. And that family also has a radio."

Zhang Qiang frowned slightly, and asked in a confirming tone, "Zhu Zi, are you sure you're not mistaken?!"

He Yuzhu answered decisively, "I'm sure!"

Zhang Qiang said, "I understand. Don't worry about it. I'll handle the rest."

"Okay! I'll be going now!" After saying that, He Yuzhu pushed his bicycle out of the parking shed, said goodbye to Zhang Qiang, and left the branch office.

After He Yuzhu left, Zhang Qiang got into the jeep. Standing by the window, Zhao Gu watched Zhang Qiang drive out of the police station gate, his brow furrowing involuntarily. He thought to himself, "Looks like I was too hasty. This He Yuzhu is really no pushover! I'll just have to find a chance to deal with him later."

Two months passed in the blink of an eye. New Year's Day 1963 was just around the corner. That night, He Yuzhu was on night shift at the police station. Around 10 p.m., a jeep drove into the Nanluoguxiang Police Station. He Yuzhu heard the noise and ran out of his office, just in time to see Zhang Qiang getting out of the jeep.

He Yuzhu asked with a smile, "Director Zhang, what brings you here so late?!"

Zhang Qiang said, "My wife has some business to attend to at her parents' home, so she took the kids and went back. I was just sitting at home with nothing to do, so I came over to chat with you." He then waved the paper package and bottle of liquor in his hand and asked, "How about it?! Interested in having a drink with me?!"

He Yuzhu thought for a moment and nodded, "Okay! Come to my office!"

Upon entering the office, He Yuzhu gestured for Zhang Qiang to sit down, quickly made a cup of tea, and placed it in front of him, saying, "Director Zhang, you didn't come here at this hour just to chat and have a drink, did you?!"

Zhang Qiang laughed and replied, "You were absolutely right. We'll be hauling in the nets tonight." He then opened the oil paper package and continued, "Your nose is really sharp, kid. This time, we're going to catch some pretty big fish."

He Yuzhu hesitated for a moment, then said, "Director Zhang, if you can't say it, then don't say it!"

"You're still as bold as ever," Zhang Qiang joked, then continued, "Although we know Zhao Gu has problems, finding concrete evidence isn't easy. The city bureau officers followed him for over a month before they gathered any evidence. And that other family in the apartment building you mentioned, they are indeed in contact with Zhao Gu. To be precise, besides monitoring Zhao Gu and his wife, this family also had the task of passing on and receiving information."

He Yuzhu asked, "Didn't you send anyone to the Northeast to investigate?!"

Zhang Qiang smiled and said, "How could we not have sent anyone to investigate?! It's just that someone helped Zhao Gu cover for him. We've already taken that person into custody."

He Yuzhu asked, "Director Zhang, when are you going to register at the school?!"

"Once this case is completely over, it'll probably be over after the New Year." Zhang Qiang said, then grabbed two peanuts and popped them into his mouth. He Yuzhu found two teacups for guests and took a bottle of Erguotou (a type of Chinese liquor) from the drawer under his desk, placing it on the desk. He Yuzhu unscrewed the cap, poured half a glass of liquor into each of the two cups, and continued, "If you leave, who will take over your work?!"

Zhang Qiang replied, "I'm doing this part-time because there isn't a suitable candidate right now. I reckon the Municipal Bureau will send someone suitable. We'll have to wait a few days to find out who it is."

"Ring! Ring!" After finishing a glass of wine, He Yuzhu was about to pour more into Zhang Qiang's and his glass when the telephone on his desk rang. He Yuzhu picked up the phone and said, "This is the Nanluoguxiang Police Station."

Zhang Hu's voice came from the other end of the phone: "Zhu Zi, I'm looking for Zhang Qiang!"

He Yuzhu handed the phone to Zhang Qiang and said, "It's for you!"

Zhang Qiang answered the phone, but before he could speak, Zhang Hu's voice came through: "Qiangzi, the operation went smoothly. Everyone's been caught. Even the tail following you has been taken down. You can go home now."

After listening to Zhang Hu's words, Zhang Qiang chuckled twice, then asked, "Have any of our men been injured or killed?!"

Zhang Hu replied, "Yes! But they're all minor injuries; they'll be fine after a couple of days of rest."

Zhang Qiang continued, "Now that we've caught them, I should head back. I'll come find you first thing tomorrow morning." With that, Zhang Qiang hung up the phone and said, "That's enough for today. I'm off!"

He Yuzhu watched Zhang Qiang leave his office, a faint smile unconsciously appearing on his face. About ten minutes later, the phone on He Yuzhu's desk rang again. He Yuzhu picked up the phone, but before he could speak, Zhang Hu's voice rang out first: "Zhuzi, come to my office tomorrow afternoon."

He Yuzhu immediately looked puzzled and asked, "Boss, what do you want with me?!"

When Zhang Hu heard He Yuzhu call him "boss," his expression instantly changed. He looked impatient and said, "I told you to come, so come! Why all the nonsense?!" With that, Zhang Hu hung up the phone. Hearing the busy tone on the other end, He Yuzhu thought to himself, "What's going on?!"