A Simon and Schuster novel of suspense

Nancy Harmon had fled the evil of her first marriage, the macabre deaths of her two little children, the hideous charges against her. She changed her name and moved across the country. Now she was married again, had two more lovely children, and her life was filled with happiness.... until the morning when she looked for her children and found only one tattered red mitten and knew that the nightmare was beginning again...