"And I was hoping you'd just stay away and join Voldemort openly, but I guess I'll have to wait a while longer." It felt strange to use that name so openly in detention of all places, but Harry would never play along with avoiding the name. In this case, if he could make Draco uncomfortable, he'd see that as a bonus.

His eyes were on Draco's sleeve. Had it not moved just a little? He imagined he could see the dark outline. Maybe it was in his head, this thought of Draco as a death eater, but maybe he was right.