The Terror Out of Space and Planet of Dread — Dwight V. Swain

Two Complete Novels in One Book: THE TERROR OUT OF SPACE by Dwight V. Swain: Somewhere in the void was a planet with a new element that could transform men into super-men. It was Boone's job to find that world-if he survived the Terror Out of Space! PLANET OF DREAD by Dwight V. Swain: Surrounded by its many suns, Lysor scorned Federation rule and plotted the destruction of our galaxy. So Craig Nesom came in a starship to this - Planet of Dread.