Lasciel

Also known as the Webweaver, she was offered to Harry during the events of Dead Beat.

Lash
Having a copy of herself taking up residence in the unused portions of Harry's brain, her copy's job is to tempt Harry into taking up the coin and becoming a member of the Order of the Blackened Denarius. Harry can converse with the copy and had taken to calling the copy Lash. Lash can manifest herself to Harry, becoming an illusion that can take some concentration to see through. She often portrays herself as a woman in greek clothing. She often tempts Harry with various abilities, which he refuses, but some of the time he bargains with her, saying that she needs to help him (typically in the form of her photographic memory) if they both are to survive. She also simply augmented some of Harry's spells with Hellfire.