Severus took a step back. "I came to break up a row, not act as your legal solicitor. And as you two know Teachers and Pupils are not permitted to quarrel. Cissy, do not strike her, nor attempt to have her reputation ruined in any way. Hermione, under no circumstances are you to lead Narcissa into a trap that will leave her traumatized like you did with Umbridge in the Forbidden Forest. Nor imprison her in a jar for any length of time. Nor get her to curse herself and be scarred forever." He let out a breath of frustration. "You two are uniquely suited to each other, you know that?