"A blood sacrifice you said?" Voldemort raised his wand on McNair and cast sectumsempra and levitated him over the brassard. The brassard absorbed the blood and sent out a wave of magic, but it didn’t go into the earth as Voldemort was holding it in his hands. His black slit eyes glowed golden and he almost looked human again. He took a deep breath in, as the life left McNairs eyes, he put the wand to the dead man’s temple and bellowed "vita aeterna!"