The code words are whispered hot in Hermione's ear, and her eyes fly as wide as they can with the bruises and the swelling that disfigure her face, thanks to her enthusiastic welcome to the dungeons. Her heart stutters in her chest and she forces herself not to turn around and meet the eyes of the man who had known the code. She doesn't want to draw attention, just in case they are being watched. He must be an informant – a snitch, or someone sympathetic to the Order's goals, but not a member, not a double agent, just a "possible source of information', as Remus put it. Because that is who the code is meant to identify – someone who maybe she can trust, someone who might be able to help her, somehow.