While his human partner, public relations whiz Temple Barr, and her significant other, Max Kinsella, are bespelled by murder most magical on the Las Vegas university campus, Louie has followed the lethal and lovely Siamese Hyacinth into the worlds largest science fiction and fantasy convention, GigantiCon. When a prominent player is killed, not only is the method of death perplexing, but the suspects in this case are a very unusual cast of thousands. Soon it becomes clear that none of the investigators in this case are safe in an atmosphere that provides cover not only for an unknown murderer, but for an antagonist in alien guise who is after the hides of each and every one of them.