Who is Linda Heffer in Betrayed: A House of Night Novel by P. C. Cast?

Linda Heffer is John Heffer's wife and Zoey's mother. She is involved in her daughter's life, and an active member in the PTA. Linda has extra time for volunteering because her marriage to John allowed her to stop working. Zoey says her mother is different since marrying John and defers to her husband rather than making her own choices.