It's a bleak story, but your writing style matches the narrative wonderfully. The depiction of Hooch is terrific. And Millicent, too, the way she clings to the rituals of normal life, and at the same time does things she never thought she could do.
The detail of Pansy going over to the manor to die with Draco and his family is especially telling. It wasn't lack of courage that made her say what she said about Potter in the case of your Pansy.