The man stared at Ye Qing's hand for nearly five seconds and couldn't help but say, "Buddy, is that sign language? I don't understand. Where exactly are we going?"
"Look closely." Ye Qing retracted his four fingers and only revealed his middle finger.
The man muttered, "That gesture of yours is a bit hooligan."
"Look at my fingertip!" Ye Qing said.
Upon closer inspection, the man suddenly said, "How did your hand get so dirty? Hey? What's this? This... this looks like black soil. Where did you get it?"
Ye Qing nodded and said, "Most of Shenchuan City consists of yellow soil; black soil is very rare. In the whole Shenchuan City, do you know where black soil can be found?"
The man was stunned for a moment, then said, "Is... is this a clue?"
This black soil was exactly what had been sticking to Fang Tingyun's door earlier. It must have been left by the gang of criminals when they kicked in the door.
