After returning to the Pei Mansion, Liang Chen stayed to discuss some matters with Fu Zhen before leaving. In the morning, Pei Zhan went to the military camp as usual, but no sooner had he left than the guard who followed him came to inform Fu Zhen that there were suspicious figures coming and going in the alley outside the Pei Mansion.
Fu Zhen lay on the top of the wall to take a look and indeed saw several sneaky people mingling with the bustling citizens, spying on those going in and out of the Pei Mansion.
Last night when Xu Yin barged in to question Zhe Yu, Fu Zhen and the others didn't get too close. Xu was too shrewd, and Pei Zhan's actions had already been exposed; now, if there were any slip-ups, all previous efforts would be wasted.
Given Xu Yin's character, since he knew that Pei Zhan was secretly helping Zhe Yu, it would be strange if he didn't keep an eye on the Pei family.
However, they only knew about Pei Zhan; how could they know that Liang Chen was also involved?
