Who is Nora Grey from Hush, Hush and what is their importance?

Nora Grey is a sixteen-year-old girl living in Coldwater, Maine. Nora lives in with her mother, Blythe, in an eighteenth century farmhouse located on the outskirts of town. The house, located on Hawthorne Lane, has no neighbors. Nora's father, an accountant, had been murdered in Portland the previous year and the house is the only remaining connection to him. His death has deeply affected Nora in many ways, including the fact that she often feels as if she is being watched. While Nora believes that being watched by her father should make her feel protected, it does not.