Challengers of the Unknown #12

Synopsis

Four-armed alien giants ravage the world of S’Ntaga, but S’Ntaga chases them off and follows them to Earth. The giants blast land, towns, and property on Earth, but the Challs can’t stop them, and Prof is blasted. S’Ntaga arrives and puts Prof into suspended animation and a revitalizing machine. The heroes discover the aliens building a diabolical machine to conquer their home world. S’Ntaga’s weapons don’t work, but Prof returns, revitalized with super-strength. Using Prof as a battering ram, S’Ntaga breaches the force field, plants a hyper-bomb, and blows up the renegades and their machine.