After hanging up the phone, Ning Zhiheng felt it would be unwise to let go of this clue so easily, and this was also a good opportunity to verify the search for the underground party organization.

So he picked up the phone again and called Du Qian back, instructing him: "Find an excuse to stall for time, and let them go only when my men arrive!"

Ning Zhiheng put down the phone. As long as he could track down the two trucks, he could find the real underground party organization that was smuggling the drugs. If he could eventually connect Demao Company and the two trucks, it would prove that his judgment was correct and that the Zuo siblings' surveillance targets were also correct!

His investigation of the underground party organization was the most secretive thing. Apart from the Zuo siblings, he could only use the people he trusted most. So he picked up the phone: "Old Sun, come to my place!"

Sun Jiacheng is Ning Zhiheng's absolute confidant, and he also knows about the situation of the Zuo siblings. Allowing him limited contact with them is a relatively safe approach!

Soon, Sun Jiacheng arrived, knocked on the door, and entered.

"Team leader, did you need to see me?"

"Get to the Kangyuankou checkpoint in Xicheng right now and find Du Qian. Follow his directions to identify the two Hengfeng Trading Company trucks, track them, and find their final destination," Ning Zhiheng instructed. Suddenly, he remembered something, "Change the license plates so as not to alert them!"

"Yes!" Sun Jiacheng accepted the order and left.

After arranging everything, I waited until 3 p.m. when Sun Jiacheng called.

"Team leader, the two trucks first went to Hengfeng Trading Company's warehouse, unloaded some goods, and then drove out. Now they've entered a large courtyard and haven't come out. I saw a small sign in front of the courtyard that says 'Demao Trading Company'!"

"Alright, that's enough surveillance. Come back immediately!" Ning Zhiheng ordered immediately.

That makes sense; my investigation was on the right track. Demao Trading Company was a newly established stronghold of the underground party organization.

When Ning Zhiheng returned home that evening, he was greeted by a rhythmic knocking on his door. This knocking rhythm was pre-arranged with the Zuo siblings; it was likely Zuo Gang and the others coming to report on the progress.

Ning Zhiheng got up and opened the door, only to see two dark-skinned middle-aged men. Ning Zhiheng recognized them from their builds as the Zuo brothers. Their faces were clearly disguised by Zuo Rou; only those very familiar with him could recognize them. It must be said, with Zuo Rou's abilities, Ning Zhiheng and his team had found things much easier.

The Zuo brothers entered the house and sat down at Ning Zhiheng's gesture. Zuo Gang immediately reported to Ning Zhiheng, "Young Master, two trucks drove into the backyard of Demao Company today. They were loaded with some goods and unloaded them in the backyard of Demao Company."

Ning Zhiheng nodded to indicate that he understood, and then asked, "How has your tracking of Zhu Hongbo, the manager of Demao Company, been these past two days?"

Upon hearing Ning Zhiheng's question, Zuo Gang quickly took out a notebook from his person and handed it to Ning Zhiheng.

"This is a record of Zhu Hongbo's whereabouts over the past two days. Demao Company has just been established, and their business is very slow, with only a few customers visiting each day. Zhu Hongbo spends most of his time at Demao Company every day, only occasionally going out."

I went out once yesterday morning and once yesterday afternoon. Both times I met people at a nearby teahouse. Both men were well-dressed, wearing long gowns, and dressed like businessmen.

Later, we split up to follow them, and we also recorded the identities of the two men; they were both businessmen from the neighborhood.

This morning, Zhu Hongbo went to a traditional Chinese medicine clinic in the south of the city for a medical check-up, and then returned to Demao Company.

In the afternoon, the two trucks entered the company's backyard, and he supervised the receiving of the goods. Then he went to the traditional Chinese medicine clinic for a checkup, and after returning home that evening, he never came out again.

This is his whereabouts over the past two days; we haven't found any suspicious individuals who have been in contact with him.

After listening to Zuo Gang's account, Ning Zhiheng looked at the densely filled notes in his hand and nodded approvingly, "You did a very good job. You've done even better than I expected."

Zuo Gang and Zuo Qiang were overjoyed to hear Ning Zhiheng's praise. They knew that their young master rarely smiled and had a cold and hard temper, so it was not easy to gain his approval.

Ning Zhiheng carefully flipped through the records in his hand, his mind racing as he pondered the matter.

According to the record and Zuo Gang's account, there seemed to be nothing unusual. Ning Zhiheng could not deduce the identities of the several clients that Zhu Hongbo had contacted at the trading company yesterday due to a lack of information, so he had to put them aside for the time being.

The two people he met when he went out, Zuo Gang and the others had already verified their identities and there was nothing suspicious about them.

The most suspicious thing is that he went to a traditional Chinese medicine clinic in the south of the city this morning.

“Pu’an Traditional Chinese Medicine Clinic!” Ning Zhiheng muttered to himself as he looked at the name on the record. His intuition told him that there was something wrong with this Pu’an Traditional Chinese Medicine Clinic!

Demao Company is located in the west of the city, while this traditional Chinese medicine clinic is in the south, which is quite a distance within the city limits of Nanjing. Is it really necessary to go to such a far-away clinic for medical treatment?

Of course, it's also possible that the doctor at this traditional Chinese medicine clinic is highly skilled. Many people travel long distances specifically to seek treatment there.

But after Zhu Hongbo picked up the truck at Demao Company that afternoon, he actually went out again to visit Pu'an Traditional Chinese Medicine Clinic. Why this trip? Did it mean he needed to report the truck's return to the city to someone?

Thinking of this, he turned to Zuo Gang and asked, "Both times Zhu Hongbo went to the traditional Chinese medicine clinic, did he carry medicine with him after leaving?"

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