The Serpent and the Stag — Julie Ann Maahs

A serial killer lurks in the Northern California fog, and young women are disappearing. Sarah is 16, pretty and naive. Her beloved mother now dead, Sarah must run away from her hated aunt to search for the father she barely knows. Right into the serpent's den. What she finds horrifies her. Is the strange boy she meets there the real killer? Is her father involved? Can she escape before it's too late?