She also wondered how her brother didn’t remember what happened.  She woke up in the hospital wing a day later to find her brother upset, but not at her. That confused her because she knocked him out and gave the stone to the dark lord. Charles didn’t remember that it was her who stupefied him. He thought that she was knocked out at the same time he was, even though she could distinctly remember the look of betrayal on his face when she had shot the spell. It just didn’t make sense.  