Harry dropped Draco's wand, and she wasn't sure why, but Cissy banished the wand under Hermione's crumpled body, hoping against all hope that she could just take Draco and run, get some money from her Solicitor and survive in the shadows like the Golden Trio had. As soon as she did it, she knew she was sacrificing Hermione to fight and die there, since her magic wouldn't work so soon after being tortured by her sister Bella. This is war, Cissy, and sometimes innocent people have to die. Besides, Bella was the only reason I stayed around here with Draco, but she is no longer the sister I once knew. Narcissa pulled Draco back into a hidden passage, where she had kept an emergency portkey to get to France. She hoped David Mallett would take her in and hide her for a bit, maybe give them both entirely new faces, but she wasn't sure. It was all a big gamble at this point.