Emilia's smile curved upwards with additional amusement, but then she focused on the dark spot again. She considered, and muttered a spell under her breath, and tugged her wand — the spot moved, following her as if it were a dog on a lead.

She stood up. "Would you mind accompanying me to the lift to ensure that no one walks into it?"

She couldn't be sure, but she did not think that would go well.