Hermione grabbed his wrist and cut him off. "Don’t," she said in a low, firm voice. Draco looked down at her hand and she realised it was over the Dark Mark, and her skin crawled in reaction. She didn’t move it though. He looked at her, dull eyes sparking off further worry. It had to be something Narcissa had said or done. It had to be. God, why hadn’t she excused herself from the others straight away? Maybe then she could have talked to him, figured out what was wrong before he came in here and made a scene that was going to mortify him once he’d calmed down.