Raven, ignoring the emotions towards her she was sensing, nodded at the idea of Harry, Lily and she going to this devil's snare. From what she gathered, reading the board, that was the stuff that actually killed someone. She felt it was more important to rid the place of something that actually killed first.
She had never been to this place before, so she decided to take things slowly, so that nothing could sneak up on her. When she moved, she also made sure to not commit to a place just yet, in case one of the other two actually knew where to go.