San Francisco ghostwriter Ruth Young finally begins to understand her Alzheimer's-afflicted mother LuLing's preoccupation with ghosts and curses when she reads Luling's writings of her dark backwoods childhood in 1920s China--where LuLing's mute, disfigured nursemaid committed suicide, and a nearby cave held what may have been the bones of the lost ancient hominid Peking Man.
