As Su Hong and the other two stared at Li Yan, waiting for him to continue, Li Yan still glanced toward one side of the shops.
"Besides the young cultivator's shop next door, you should focus on investigating some of the buildings on the same side as Jin Zhiyuan's shop. Places that can see the two shops across the street, as well as the shops or lofts at the opposite street corner.
"Especially any buildings whose owners suddenly vanished. That person, or those people, should have been the final layer of protection secretly arranged for Jin Zhiyuan.
"They would keep watch from this side for long periods, secretly monitoring the places across the street that could easily observe this area. Their sole purpose was to protect Jin Zhiyuan's shop.
"So their objective was clearer and more targeted. Every day, people across the street might look this way, and such behavior would appear perfectly normal to others.
"But those watching in secret would certainly know that when such situations occurred, there was a certain chance that someone would come to this shop.
"At the time, however, you only focused on avoiding the attention of those nearby and Jin Zhiyuan's shop itself. You never imagined that someone had been secretly and firmly watching the places you went.
"So no matter how well you concealed yourselves, you merely avoided the notice of the people around you. You could not possibly escape the tailing of someone who had deliberately set his sights on you.
"They had watched this street year after year. They naturally knew the approximate flow of customers here at every hour.
"I suspect they could even judge roughly how many people would enter this shop merely by observing the gazes of those who looked toward it.
"But today, the number of