Hermione pretended to think for a moment. If she were to be truthful with him then Dumbledore would find that no Slytherin since Hermione's second year have taken the Dark Mark. He may have thought that helping Draco was synonymous with being a Death Eater but Hermione couldn't wait for him to realise the truth at some point. But, that didn't mean that she was going to make it easy for him. In fact, she decided that she might let the Inner Circle's game get a bit more interesting.