V knigu voshli nauchno-fantasticheskie romany izvestnogo amerikanskogo pisatelya Garri Garrisona o priklyucheniyakh znamenitogo mezhgalakticheskogo kartochnogo igroka Yazona dinAl'ta na neukrotimoj planete Pirr.

In Deathworld 3, Jason invites those Pyrrans who cannot adapt to the changes on their home world to colonize "Felicity", a planet rich in mineral wealth, but home to humans who are divided into two primitive societies, reminiscent of early Asia. One is an agrarian society living in towns and cities; the other is composed of nomadic clans that constantly fight amongst each other, strongly reminiscent of the Mongols before they invaded China and settled down. The two are divided by an impassible, miles-high, continent-spanning cliff.