Samara stumbled back a bit, dragging Jason with her, when the strange noise came out of the man's mouth. She wasn't sure what it was but she was frightened that he might be sick in more ways than one.
She wasn't sure who the 'red-headed bitch' was that he was referring to. Normally Samara would not listen to these sort of ramblings, but considering what he was saying - that it was all matching up with her dreams and what the Prophet had mentioned about those who had been murdered recently - she couldn't just ignore it. She was clutching Jason's shoulders tightly, so much so that he was complaining, "Mum that hurts!" but she didn't hear him.
Her hands were shaking again like they always did when she got worked up about these 'nightmares' and she looked him square in the face, asking in a shaky, slightly higher voice than her usual, "Who? Who is she? Please, I have to know! You've got to tell me!" By the end she was almost screaming at him, paying no mind to the fact that she was in a busy street of Diagon Alley, right outside a popular cauldron shop.