Animal Magnetism. Mesmerism. Hypnosis. More than one name has been applied to the phenomenon of one person putting another into a deep trance-and into a deep state of submission. But how far does this power truly go? Can a devious hypnotist entrance an unknowing subject from across a room? Can a mesmerized person be compelled to commit murder? Can a hypnotic spell extend beyond death? In the 1800s, such questions had no certain...