Ning Zhiheng then retrieved two more exquisite small leather suitcases and filled each one with US dollars, totaling approximately thirty thousand US dollars. This was naturally the bribe he intended to hand over to the section chief and Deputy Section Chief Huang; the more money the better, as thirty thousand US dollars would certainly satisfy the two section chiefs!

Finally, he brought out the box of gems. A box of gems like that is now quite valuable, but Ning Zhiheng didn't have a good way to deal with it. Moreover, in the next few years, these jewels will depreciate more and more. After all, when people can't even fill their stomachs, a steamed bun might be more valuable than a gem. So he never intended to keep antique jewelry.

He put the box of gems into the small leather suitcase he had prepared to give to Deputy Director Huang Xianzheng, which was enough to show his sincerity!

As for Xiang Yan, who was in charge of the case, he naturally had to make a gesture. He prepared ten thousand US dollars, which was perfectly acceptable!

He had too much money now, and the safe couldn't hold it all. He left some banknotes in the safe as a backup, then moved his bed and lifted the floor tiles. He found a shovel, dug a deep pit on the spot, buried the two large boxes of banknotes in it, filled it with soil and covered it with bricks, carefully restoring it to its original state and covering up any traces.

With everything settled, Ning Zhiheng finally breathed a sigh of relief. His house was very close to the Military Intelligence Investigation Department, and the police patrolled the area very strictly. Ordinary thieves dared not commit crimes in the vicinity, so the security was relatively good! In addition, the house looked inconspicuous from the outside, so it was relatively safe.

It was already past 2 p.m. when Ning Zhiheng tidied himself up and rushed to the Military Intelligence Investigation Department.

He went straight to Xiang Yan's office, knocked on the door, and only pushed it open after hearing Xiang Yan's voice.

Yesterday's incident with Guo Xueyi left Xiang Yan in a very bad state of mind. His subordinate, who had followed him faithfully for many years, and his brother with whom he had spent so many years, were gone. Even though Xiang Yan was as hard-hearted as iron, he could not hide his grief at this moment.

When Ning Zhiheng came in, he saw him sitting alone in a chair, looking very unwell, with several documents on the table.

"Section Chief!" Ning Zhiheng called out softly.

"It's Zhiheng, please sit down!" Xiang Yan only came to her senses slightly when she saw Ning Zhiheng come in.

"Section Chief, don't be too sad about Major Guo's matter. Your health is the most important thing!" Ning Zhi advised.

Xiang Yan waved his hand with a bitter smile and said sadly, "Alas! I feel sorry for Xueyi! He's followed me for so many years, and I thought this was a good opportunity to help him, but...!"

Xiang Yan couldn't continue. He shook his head and waved his hand, "Let's not talk about this anymore!"

His expression turned serious, he sat up straight, and handed a document on the table to Ning Zhiheng: "Zhiheng, I was just about to look for you. We interrogated Su Yu overnight yesterday, and he confessed to his crimes. Here is the interrogation record. Take a look!"

Ning Zhiheng took the document, opened it, and examined it carefully. His expression changed slightly as he said, "Blackwater Group? This Su Yu was turned by Tian Liqun, also known as Takeda Kaede, two years ago! Takeda Kaede's identity is truly extraordinary! He is actually the eldest son of the top Japanese noble Takeda family. How could such a prominent noble scion be assigned to infiltrate Nanjing? And their group leader's code name is Viper. Between Meng Lesheng and his wife Kong Shulan, who exactly is Viper?"

"Su Yu doesn't know the answer to this question either. He doesn't have the authority to do so. Although he is a member of the Blackwater Group, he knows very little about the group. Among the other members, he only knows about Takeda Kaede, and that's because Takeda Kaede was the one who turned him."

"And they've always been using dead mail to transmit intelligence, so they can't get in touch with his superiors!" Xiang Yan said.

"Isn't his superior Tian Liqun, who is also Takeda Kaede?"

"That was just a private connection between Takeda Kaede and Su Yu to get Su Yu to help him retrieve the seal. Later, his intelligence transmission channel was accidentally destroyed, so he borrowed Takeda Kaede's channel, which made us mistakenly believe that Takeda Kaede was Su Yu's superior. Fortunately, the final result was the same, and we still found Viper!" Xiang Yan explained.