If it weren't for discovering in the materials that Wu Quanjiang was a standing committee member of the Nanjing underground party organization, which was of great importance, Ning Zhiheng probably wouldn't have acted so easily last time. After all, his identity was too important, and there were too many people involved behind him. He absolutely couldn't act rashly for the sake of a member of the underground party organization!

Should he alert the underground party organization? He decided to observe further and see if the Zuo siblings could make any progress.

The man Sun Jiacheng was following who left Miss Tian's residence eventually entered Jiqing Lane. If it can be confirmed that the person who contacted Miss Tian was a member of the underground party, then it can be completely confirmed that Jiqing Lane is indeed the stronghold of the underground party organization!

Ning Zhiheng decided to wait and see, and decide what to do next after observing the situation further.

Time passed quickly, and in the evening, Ning Zhiheng returned home. Around eight o'clock in the evening, there was a rhythmic knocking at the door. Hearing the rhythm, Ning Zhiheng knew that it was the Zuo siblings.

He had stipulated that the Zuo siblings must report to him every night on the whereabouts of Miss Tian, ​​and now it was time for them to report.

He opened the door and saw Zuo Gang standing outside. He waved for Zuo Gang to come in and then closed the door.

"Where are Zuo Qiang and Zuo Rou?" Ning Zhiheng asked, gesturing for Zuo Gang to sit down.

Zuo Gang replied, "I rented a house over there, and the two of them are continuing to monitor me. I'll come back to report my whereabouts to you!"

Ning Zhiheng nodded in satisfaction. The Zuo siblings had carried out his orders thoroughly. They were preparing to monitor the target day and night, which was a huge task because it involved the underground party organization. However, Ning Zhiheng did not have any trustworthy extra people, so he had to let the three Zuo siblings take the lead!

"Tell me about what happened to Miss Tian today?" Ning Zhiheng asked.

Zuo Gang explained in detail: "Miss Tian didn't go out all day. The only visitor was a middle-aged man in the morning. He stayed in the courtyard for about five minutes before coming out. As you instructed, we also need to follow the people who came into contact with Miss Tian."

So I followed him the whole way, but this guy was no ordinary person. Halfway there, he went into a movie theater, changed his clothes, and came out mixed in with the crowd. If I hadn't been keeping a close eye on him, he would have almost gotten away.

Finally, he went home, and I even wrote down the house number!

"How did you know that was his home?" Ning Zhiheng asked.

"I saw him take out his key and open the gate. It must be his house, but the house is very big, like a wealthy family's!" Zuo Gang explained.

He was also a seasoned veteran of the underworld, and he was very observant. He was no stranger to surveillance and tracking, and he had his own unique methods. Otherwise, with Zheng Dayou's vigilance, he would not have been completely unaware that Zuo Gang had followed him to his home.

Ning Zhiheng nodded upon hearing Zuo Gang's words and asked, "Give me the address. I'll check it out tomorrow and see who this person is."

Zuo Gang took out a folded piece of paper from his pocket. Ning Zhiheng took it, opened it, and saw that it read: No. 23, Jiyuan Road.

Ning Zhiheng was immediately surprised. Of course he remembered this address; he had even visited it in person. It was the home of Professor Fang Boyi, a professor at Jinling University and a master of epigraphy.

Of course, Professor Fang also had a very important identity: he was an important member of the Nanjing underground party organization.

Ning Zhiheng immediately understood everything. Miss Tian was indeed a member of the underground party organization. He never expected that he would find an underground party member by simply grabbing a girl on the street to use as a clothes hanger!

This shows that Jiqing Lane is indeed a stronghold of the underground party organization. It seems I should warn the underground party organization.

Just by looking at the tight security arrangements at the entrances and exits of Jiqing Lane, one can tell that the purchase of these houses required a huge investment of money and effort. In addition, the observation posts and hidden sentries would require a considerable number of people to maintain. With such a high level of security arrangements, Ning Zhiheng was certain that Jiqing Lane was not an ordinary stronghold.

Such an important stronghold was actually tracked down by the Central Party Affairs Investigation Department. If the agents of the Party Affairs Investigation Department could not determine the exact location of the stronghold before today, then the appearance of the man in the long gown at the entrance of Jiqing Lane today is very likely to have made the agent notice the location of Jiqing Lane.

It is conceivable that the safety of all underground party members in this stronghold is now under serious threat.

This is a very serious problem, and I must remind myself of it in time, otherwise it will have serious consequences!

Thinking of this, Ning Zhiheng said to Zuo Gang, "What happened today must be kept absolutely secret. You and your sister should stop monitoring that Miss Tian now. I will handle the rest!"