Inferno

A small group of humans hope to avoid the mistakes that destroyed many other worlds. They are raising the Jasons from barbarism to civilization, on a planet which has much in comman with Uganda from old-Earth, but something goes hideously wrong. William Masterson must try to find out why Jehanum, a showplace planet with a model government, productive farms, and a thriving tourist industry, has descended into bloody barbarism. One dictator after another rises to power, and the culture of the world is torn to fragments.