Lydia

Lydia is a a human female practitioner and a client of Harry Dresden's in Grave Peril.

Story
Lydia stops Harry as he's leaving his office pleading that he's the only one who can help her. She want some sort of protection from a hostile spirit. Harry gives her his Dead Man's Talisman. He tells her to go to Saint Mary of the Angels Church. Father Forthill tells Harry and Michael Lydia cae to him, and had a seisure.

how a frightening spirit rampaged outside the church all night demading Lydia. How Lydia fell into despair and tried to go out to it in order to spare Forthill.

Description
Lydia has Cassandras Tears, Lydia was a slight girl, wore black dress, combat boots, her hair was dyed matte black. She had a soft, sweet face, pale skin, sunken eyes, and an alley cat awareness.

Forthill describes her as: