Their supernal powers are all trickery, of course--trapdoors and specters on a stick--but it's a good show.
The only cunning wrinkle in this series is the collective hero: a dozen or more supernal types, each bending the laws of physics in a peculiar fashion, each trying not to .
THE BOTTOM LINE: A boxed set captures, if not the glory days of a supernal jazz singer, great ones nonetheless.