C105 Unexpected Developments(10)

"Diary?" Savi repeated subconsciously. "How did you know it was a diary?"

"Although there is no date written on it, there is a mark similar to a number on it." Ayer glanced at him. "If you follow it, you will find some connection. So I guess it is a diary."

Ayer could more or less understand the content, so he could guess that it was a diary