Edward was walking through the school carrying a book on his right hand. Though he was not noticeable due to the fact that he was currently invisible. He mostly did this to walk around without being bothered and that if he came across any trouble that a student was causing, he could catch them red handed. 

"Well, another day finished. Maybe I should hang around and see if some student tries to do something and see if he or she needs a lesson." Edward said in a small quiet voice.

[b]I hope so. I swear, while some students around the Academy have potential, most are too bloody green and rely on their summons way too much.[/b] Rigen said to Edward, who was literally Edward's shadow, through their mental link. 

"You're telling me. Good thing you made me train myself to not rely on you all the time. " Edward said back to Rigen. 

Edward just kept on walking, still nobody in sight.