Hermione froze as she watched, wondering if he would actually kill Severus now. The rage in his expression certainly hinted that he might like to, but after a second he shook his head, laughing softly. "Ever the snake, Severus... you’re trying to distract me." He took another step back towards Hermione, looking at her face for a moment before his gaze shifted down her form. "And what  does  the mudblood mean to you, Severus?" Roberts turned his attention to Severus as he yanked Hermione roughly by the hair. Severus’ face remained stoic as Roberts pulled out a sharp knife and held it threateningly to Hermione’s throat. She swallowed convulsively but remained silent, her eyes on Severus, determined to follow his lead. He glanced over her with something approaching bored disinterest. 