His eyebrow raised arrogance and annoyance burned off of him making the tension difficult to listen to anything McGonagall had been telling them.

Regulus only focusing on the way McGonagall tells him he has to tudor...Them.

He hated mudbloods with a passion, especially one who was friends with his brother.

"Libary, after class." He said bluntly already staunting down the hall anger clear by the way his hands clenched into fists as he walked away.