For once, Earth's outa-space invaders are dumber (if also wiser) than the natives. To the leonine, lovably perplexed Centrans, Earth is Pandora's Planet: when they try to incorporate her into their ""Integral Union,"" they're bewildered by barbed wire and time payments, while earth fads and manias infect and divide their empire. Amusing, but its slow-minded Centran point of view will rapidly bore hyperactive earth-brains, and the barb at humanity is blunt and blatant.