Once they were outside, Bellatrix raised her wand and called out reverently, "Mors Mordre." As the great skull and snake writhe above them, she sighed happily.
What a glorious night. Her Rodolphus should be waiting for her in their chambers in the manor that had been so graciously turned over to them for their use.
"You may keep the mask," she said, turning back to the boy. He had done well. Very well indeed. "For now. Let none find it." She gave him a long measuring look. "I will send you certain tomes. Study them. No potential servant of my Lord should be lacking in his knowledge of the Arts."
It was the work of a moment to drop the anti-Muggle spells. Let the please-men come now.