Of course Lucius hadn't missed her entrance, since he watched everyone who walked into the room, though he acted cool and pretended to be greatly interested in soothing a fold of his cloak until she spoke to him.
"Bellatrix," he said politely enough, his feelings toward her as mixed as hers undoubtedly would be toward him. "Alas yes but I didn't know you were here and apparently I've been here since people started appearing in this place. Have any other purebloods arrived?" He looked disdainfully around the room and his eyes gained a less cold stare when regarding her again. Each knew they didn't really like the other but they were on the same side and superior to those others.