Brunner postulates a world on the brink of war where fanatical ""godheads"" prowl the streets and every man's hand is raised against his neighbor. Disaster looms until a motley underground discovers and disseminates a deus ex machina drug that compels the perception of complexity; the result is expanded minds and peace on earth. Credible characters, suspenseful plotting and Brunner's broad vision make this humane novel a winner.--Kirkus