The owner of the house replied upon hearing this, "The wells around the north side of the city have been dry for many years now, so everyone has to fetch water from the river."
All the wells on the north side of the city are dry?
Shangguan Xuanyi recalled that he had seen a well in Zhao Youwei's courtyard when he visited him before. The well was half-covered, but it was wet around the cover, and there were water stains around the well, creating the impression that there was water in the well.
Who could hide in a well that has water?!
Thinking of this, Shangguan Xuanyi quickly left.
Zhao Youwei also thought of it. Though he had glanced inside the well before, because the cover wasn't completely on, he hadn't examined it thoroughly. The bottom of the well was pitch dark. He saw only the gleam of water, assuming there was water, and therefore no one could hide there!
However, if all the wells in the north city are dry! Where did the gleam of water in the well come from?