The Nightmare Chase — Evelyn Berckman

Wickedness smoldered unseen in the elegant interiors of the mansion. The world-famous archaeologist, now in her 80's. was acting strangely. Her lawyer wanted her committed and Jacintha, her paid companion, blinded by infatuation for her handsome and secretive son, couldn't trust her heart to answer: Was the old woman mad - or was she being scared to death?
A series of menacing events rocked the mansion: a prized manuscript vanished, the piano was mutilated, and suddenly Jacintha was pursued by a seductive terror...