"Wang Zhongkui," Zhao Huan thought for a moment, "How could this man have such great abilities?"

Zheng Xian continued, "Your Majesty, the Imperial College's exam-setting officer is Qin Hui. He is under heavy guard by imperial guards. But Qin Hui's wife, Wang Guixiang, is fathered by Wang Zhongkui, and Zheng Juzhong is Wang Guixiang's uncle. Zheng Yinian is Wang Guixiang's cousin."

Zhao Huan was shocked: "Wang Zhongkui is Qin Hui's father-in-law! Does this mean Qin Hui is involved in this case?"

Zheng Xian nodded. "At first, I only found out about Wang Zhongkui, but later I learned that they had obtained the test papers through Qin Hui."

"Then how did they steal the examination papers from the Imperial College? It's guarded by layers of guards?" Zhao Huan couldn't help but be surprised.

"Well, Your Majesty, the examiners cannot leave the Imperial College before the examination. However, there is one type of person who can come and go freely."

Zhao Huan was furious: "Who is so bold? I want his head!"

Zheng Xian hesitated. "Well, Your Majesty. People eat grains, and these examiners also need to eat. And those illiterate servants need to deliver three meals a day to the Imperial College. This gives them an opportunity to take advantage of us."

Zhao Huan gasped, "How could they have come up with such an idea? But the cooks and servants are all inside the Imperial College. Even if they stole the test papers, they still can't take them out of the Imperial College, right?"

"This is Wang Zhongkui's prowess. I've investigated. A cook at the Imperial College contracted the plague. Fearing contagion, the guards dragged the cook outside the city walls and burned and buried him. This was orchestrated by Wang Zhongkui. If my suspicion is correct, the cook must have been carrying the exam papers. I originally wanted to arrest him at Wang's house, but I decided to let Wang Zhongkui go because, while I suspected Qin Hui's involvement, I had no proof."

Zhao Huan asked in surprise, "Do you have any evidence that Qin Hui leaked the secrets?"

Zheng Xian nodded. "I've already sent people to monitor Qin Hui. Just as someone reported that Qin Hui had left court, he went to Wang's house. When he came out, he was holding a test paper in his arms. If I'm right, this is the test paper Qin Hui leaked from the Imperial College. It must be Qin Hui's handwriting."

Zhao Huan slammed the table and said, "Send someone to Qin Hui's house! Search and confiscate his property!"

Zheng Xian bowed and said, "As you wish!"