Guan Yu was puzzled. He thought with one hand on his chin. To say that the windows of the study were all intact, there was no sign of anyone switching on or off, and they were locked inside. When he just came, the door was locked inside, and there were only 10,000 adults standing inside.

That's strange. How did the murderer escape after killing ten thousand adults? Guan Yu looked around again. Apart from the two big bookshelves, there was nothing else in the room. How did the murderer get in and how did he escape after killing someone? It seems that this is a secret murder case.

Adult Zhou...