Xeres is your friend. You did not know that he is an assassin and a detective. You just know that he is a doctor. You didn't know that he just befriend you because of his mission.

While you were reading some action books, you heard a knock on the door. As you opened it you saw Xeres, with an injured arm.

You asked:

What happened to you?!

He just looked at you in the eyes and enter as he quickly locked the door