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

As He Yuzhu pulled out handcuffs and cuffed the dwarf behind his back, he gave Zhao Yong a wink. Zhao Yong understood and exchanged a few words with the street office staff before running out of the courtyard. He Yuzhu then forced the dwarf to bite his tongue or hide poison in his mouth, and even dislocated his jaw. Pointing to the dwarf at his feet, He Yuzhu asked, "Uncle Lin, you've lived in this courtyard for so many years, how many times have you seen this kid?!"

Lin Asan was immediately stumped by the question. After thinking carefully for a moment, Lin Asan said, "You know what? I haven't really seen this kid more than a few times over the years. I asked Liu Guishan a few times, and he always said the child was sick. He didn't say anything else."

Officer Gao asked, "Uncle Lin, we've lived in the same courtyard for so long. Didn't you notice anything unusual?!"

Lin Asan replied, "Comrade Gao, this family is usually quite honest. We haven't noticed anything unusual."

About ten minutes later, Zhao Yong arrived with two men. Seeing Zhao Yong's happy expression, He Yuzhu asked, "Did you catch Zhao Sanmei?!"

Zhao Yong asked in surprise, "How did you know?!"

He Yuzhu replied, "Look how happy you are! You practically have the word 'success' etched on your face."

Zhao Yong said, "I had just reached the entrance of the courtyard when I ran into Zhao Sanmei, who was returning from buying groceries. The joint defense team happened to be patrolling nearby, so I joined them to apprehend her. She's already been taken back to the station. By now, the station chief has probably already started the interrogation. Deputy Chief Yao has taken his men to the furniture factory. None of them will escape."

He Yuzhu urged, "Now that we're here, let's not just sit around! Let's start searching!"

The house wasn't large, but it contained a lot of hidden items. They found a radio, a codebook, a cache of weapons, ammunition, and explosives. They also discovered a considerable amount of money and banknotes.

Lin A-San's legs trembled involuntarily as he looked at the radio and weapons that had been found. Officer Gao then spoke up, asking, "Old Lin, this family hasn't lived in this compound for a year or two. Didn't their neighbors say anything to you?!"

Lin A-San said, "To be honest, no one has told me anything unusual."

He Yuzhu took out his cigarette case, pulled out two cigarettes, handed one to Lin Asan, and casually asked, "Uncle Lin, think carefully, have any strangers come looking for this family recently?"

Lin Asan took the cigarette, thought carefully for a moment, and said, "I really didn't remember if you hadn't mentioned it. A few days ago, someone from a mechanic repair shop did come looking for them."

Zhao Yong's eyes lit up, and he asked, "Do you know the names of the people at the machine repair shop?!"

He Yuzhu took out a matchbox and lit a cigarette for Lin Asan. Lin Asan took a couple of puffs, then suddenly exclaimed, "I remember now! That man's surname was Cui, his name was Cui... Cui something, I think." Then Lin Asan patted his head and said, "Getting old, my memory's really failing me?!"

When He Yuzhu heard Lin Asan mention Cui something, the name "Cui Dake" suddenly popped into his head. After hesitating for a few seconds, He Yuzhu asked, "Uncle Lin, is that person named Cui Dake?!"

"Yes! Yes! Yes! That's the name." Lin Asan echoed, then added, "This man is tall and strong, and his accent doesn't sound like he's from the city."

Zhao Yong asked, "You know this Cui Dake?!"

He Yuzhu replied, "When I went hunting, I passed through Xicui Village and heard the villagers talk about this Cui Dake. That guy is a lazy good-for-nothing in the village. The village sent him to deliver a pig, and he ended up currying favor with the factory leaders and getting a temporary job. Anyway, that guy is no good."

Zhao Yong said, "We've found everything. Let's send the people and the items back to the station first, and then make a trip to the machine repair shop."

"Alright!" He Yuzhu readily agreed, then looked at Lin Asan and said, "Uncle Lin, keep a close eye on things these next couple of days. If anyone inquires about this family, write it down! We'll send someone to ask them in a couple of days."

Lin Asan patted his chest and promised, "Leave this to me. You can rest assured!"

When He Yuzhu and Zhao Yong returned to the station with their men, escorting the dwarf and the seized items, Yao Qi arrived at the furniture factory with his men. Yao Qi explained the situation to the factory's security personnel. With their cooperation, Yao Qi successfully apprehended Liu Guishan.

Ye Guoliang had just come out of the interrogation room when he heard a commotion in the courtyard. He ran out and saw Zhao Yong leading people to unload a truck. Ye Guoliang laughed and said, "Wow?! Quite a lot of stuff!"

He Yuzhu pulled the dwarf to Ye Guoliang and said, "Chief, the dwarf who impersonated Liu Guishan and Zhao Sanmei's son."

Ye Guoliang sized up the dwarf and said, "If you hadn't told me, I really wouldn't have guessed. You look like a child." Then Ye Guoliang said to the dwarf, "I never imagined you were that legendary old ghost."

Upon hearing the words "old ghost," the fire in the dwarf's heart instantly died out.

Upon seeing the dwarf's reaction, Ye Guoliang immediately broke into a bright smile and roared, "Take him away!"

After unloading the goods, Zhao Yong walked up to Ye Guoliang and said, "Chief, according to the liaison officer in the tenement, Cui Dake from the machine repair shop has had contact with this group of people."

Ye Guoliang said, "Zhao Sanmei has already confessed. Cui Dake is one of their downlines. Take some men to the machine repair shop and bring Cui Dake back."

"Yes!" After accepting the order, Zhao Yong took two men and set off on the three-wheeled motorcycle that He Yuzhu used for hunting.

About fifteen minutes later, Yao Qi returned with his men. After taking Liu Guishan to the detention cell, Yao Qi went into Ye Guoliang's office and asked, "Old Ye, I heard the dwarf was caught?!"

"Got him!" Ye Guoliang replied, then asked, "Old Yao, guess who this dwarf is?!"

Yao Qi replied, "I have no idea." Then she urged, "Who is that person?! Stop keeping me in suspense!"

Ye Guoliang said, "It's that old devil from Tianjin who asked us to help investigate!"

"What?!" Zhao Qi exclaimed in surprise, "He's Old Ghost Ke Xiangdong?!"

Ye Guoliang nodded and said, "It's him!"

Yao Qi said, "This person is involved in quite a few things." Then she asked, "What did the branch office say?!"

Ye Guoliang replied, "What else can we say?! Since we've already eaten the dry food, we should share some of the liquid. Otherwise, people will say we're hoarding it all."

Yao Qi lit a cigarette, took a couple of puffs, and said, "Deputy Director Zhang has always said that He Yuzhu is our institute's lucky charm. I didn't think so before. Now I really believe it!"