Preview of World of Ptavvs Summary:

World of Ptavv s deals with the contact between men of several centuries hence and Kzanol, an alien thrint who had buried himself in a stasis field millions of years ago and is only now excavated. The thrints possessed telepathic powers that enabled them to control other minds and with the aid of amplification helmets they established an interstellar Slaver Empire. Kzanol plans to do the same thing on...