Waiting Spirits(1984)

Bruce Coville

Lisa and her younger sister, Carrie are totally bored by their seaside vacation. Until their grandmother shows thema strange new game-something called automatic writing, which enables Lisa to contact the spiritworld. To her shock, an eerie message spells out terrible danger. Shaken by the nightmare experience, Lisa promises she'll never try it again. Then she meets Brian, who reveals a chilling secret. Lisa's summer home is known to be haunted by a ghostly female. Although frightened, Lisa becomes trapped by her own curiosity. She knows that if she tries to contact the demon force, she'll be consumed, mind and soul. But the unholy power is drawing her closer to the edge of doom...