With that, she let out a vibrant green from her wand, leaving Narcissa's husband laying lifeless over his son.  "The House of Malfoy is no more," Hermione announced to the men, still imposing her will over Narcissa.  Bending to maintain eye contact, Hermione took a deep breath in and focused her intent and dark magic on the need for Narcissa to bend the knee, to be her right-hand woman, and assure her loyalty without the use of an imperius.