After Kornbluth's death, his widow turned over his story notes and drafts to Pohl, who completed a dozen or so stories based on this material, most of which were eventually collected in this volume and in the later "Critical Mass".
After Kornbluth's death, his widow turned over his story notes and drafts to Pohl. Pohl completed a dozen or so stories based on this material, most of which were eventually collected in this volume and in the later "Critical Mass".