Gu Jinghui noticed the seriousness on Gu Shiliu's face and realized he must have discovered something.
It seems that this Doctor Liu indeed has some issues.
"What did you find?"
Gu Shiliu replied, "The one with the surname Liu is using carrier pigeons to send messages outside."
"Have you figured it out clearly?"
Gu Shiliu said, "We hadn't found where the pigeon was hidden before; he whistled, and the pigeon flew out. I sent someone to follow the direction of the pigeon."
Gu Jinghui's face turned serious. The entire situation was becoming more complicated. Whose agent was this Doctor Liu?
What was he scheming?
Gu Jinghui's stern features grew even more fierce, "What else did you discover?"
Gu Shiliu hesitated, "I saw him act very skillfully; clearly, this wasn't his first time. These days, he's probably been in constant communication with the outside. If he tries again, we will surely catch him in the act."
