Lu Yun had been pondering one thing all along: if the Zhao family, the Wu family, and even the people from the Xuanyi Tavern had not seen anyone from the Yan family, it could only mean one thing—Yan Hongcai had not entered any of the side halls at all.
Otherwise, it would have been impossible for him not to be noticed or seen.
And this precisely indicated that Yan Hongcai had triggered a mechanism or opened some hidden door right here in the main hall.
Chapter 673