The cement pipe was placed on the ground vertically. Someone had thrown some garbage in there. There were a few pieces of tattered clothes, probably left by the tramps. I slid half of my body into it and rummaged through the garbage with my hands until I finally found the source of the weird smell.

I took out a pair of rubber gloves from my pocket and put them on. Then I picked up the paper towel that was emitting the medical-grade alcohol smell.

It seemed that my guess was correct. Xiaozhang was indeed kidnapped by the murderer!

This paper towel was probably here because the murderer had mistakenly spilled some nitrous oxide on his hand, so he used it to wipe his hands. It was clear that the murderer had long been eyeing Xiaozhang.

Xiaotao came over and sniffed it and asked, “How did you know it was here, Song Yang? It’s like you have a dog’s sense of smell!”

“I’ve...