At this point, Mr. Qin suddenly stood up and pushed his hands towards me. "This was my idea alone. Since you’re already here, then you might as well handcuff me!"

"Song Yang-gege, this girl is so pitiful. Can’t we just forget it?" Bingxin pleaded.

Even if I wanted to handcuff him, I didn’t have any on me. "If what you say is true, Qin Lu's coffin would have been unearthed. Have you already buried it again?"

"Y-yes!" There was a shift in Mr. Qin’s expression. 

I wondered why he suddenly grew nervous so I said, "Show it to us!"

"Alright, I'll take you there now," he nodded.

There were many tombs covered with overgrown weeds on the hill. Noticing the locust trees around us, I simply asked, "What wood is the coffin made of?"

"It was made from an old locust tree that grew on this hill."

Sure enough, this was the cause of Zheng Zaihao's death.

When we came to a newly-dug grave, Mr. Qin...