In the dimly lit Slytherin, after an argument William Rosier, a formidable member of the Knights of Walpurgis, stood alone with an air of aggression as he prepared tea. The room's shadows danced around him, emphasizing the intensity in his movements. As the steam rose from the boiling cauldron, Rosier's piercing gaze pained to hide his irritation. He had a conflicted discussion with Lestrange, arised from different opinions on the method to achieve their shared goals.