He vanished the box before closing her door as he no longer needed the diversion before getting to the meat of his plan. Lucius watched as she stumbled into the hallway to pick up the bottle she was drinking from off the floor. You almost ruined everything, girl, but for once you made things too easy for me. When she made to walk past him to get to the kitchen to serve him a glass, he placed the chloroform soaked handkerchief over her mouth and nose. Lucius was more than aware of who her friends were and had came to the conclusion he needed to make this look like a muggle kidnapping.