"I had been copying scriptures in my room last night and never left the room until I knew when I was going to sleep." A Xiao then said, "I can show you the Scriptures I copied last night."

Guan Yu knows that the murderer must be in the middle of Ahuo and Axiao. One of them is absolutely lying, but there is no way to make sure that he is sleeping in a lie.

Yue Gao said, "None of your three alibi certificates is valid, nor are they of any use. Of course, we are the same. Any one of us may be the murderer of Master Qiu."

"Yes, and...