Why did Director Feng conceal such an important detail from us? Wasn’t he afraid of getting fired?

I continued to ask the middle-aged man about the case, but he waved his hand and answered, “We’ve told the police everything we know, haven’t we? Why don’t you go back and ask them yourself? You’re from the city, aren’t you? Well let me give you some advice—give it up and go home. You won’t find any killers to catch here, because it was a ghost who did it!”

“A ghost?” I asked. “How?”

The man sighed. “You policemen just love asking questions, don’t you? I’ve got these bricks to deliver right now, but you can come find me at my house after lunch if you like.”

He left us his address, then climbed back onto the tractor and drove away.

It was barely an hour before noon, so we decided not to return for lunch. I called Xiaotao to inform her of our major discovery....