Showing Seattle Ghost Story by Nick Dimartino

We couldn't find a cover image for this book but we did find it listed on Amazon

Ever since a mysterious, fatal accident in the ravine, university student Pepper Merlino's world has become a place of fear. Her artist neighbor, Joe Strozza, is tormented by nightmares. Eleven-year old Billy Beck, who witnessed the accident, has run from his world of fantasy into the dread horror of an unknown stalker.

Pepper tries to concentrate on her studies, but her mother's grief is slowly tearing them apart. The entire neighborhood of Ravenna Springs is tense with suspicion and dread; now, secrets from the past are about to sweep Pepper, Billy, and Joe across the very boundary between life and death.