Can immortal man ever outwit the airlines? What if dumb animals could be trained to “appreciate” the communications media of the human world? How does agent Number 38, Zone 11, respond when he sights a U.F.O.? What happens to Slippage City when the Devil decides to think big? These—plus a remarkable sex comedy—are some of the intriguing themes of Element 79, the new Hoyle galaxy that ranges the...