Dark Satanic — Marion Zimmer Bradley

The Curses

It had started with a letter -- crude, block letters promising death. But neither Jamie nor Barbara Melford paid heed. They didn't believe in curses…until Jock Cannon died, suddenly and mysteriously. He had been threatened and he had warned them. But he had believed in the power…

Suddenly Barbara's life in their quiet, pleasant brownstone became a nightmare of terror. Was it the work of a twisted prankster or an omen of the future? Was it the curse or pure madness? Barbara knew only that she was strangling -- on the serene, knowing countenance of Jamie's mother and the smug, twisted smiles of Dana, her young companion; and the uncomprehending hatred that began to glint in Jamie's eyes…